Dr. Marc F. Kassis Profile

Dr. Marc F. Kassis

Instrument Program Manager at W M Keck Observatory

SPIE Involvement:

Conference Program Committee | Author

Publications (47)

Proceedings Article | 27 August 2024 Poster + Paper

Poster + Paper

Keck AO high order wavefront sensing and control: opto-mechanical design

Scott Lilley, Peter Wizinowich, Jonathan Steiner, Ed Wetherell, Jim Thorne, Eduardo Marin, Marc Kassis, Charlotte Guthery, Jacques Delorme, Antonin Bouchez, Mitsuko Roberts, Nemanja Jovanovic, Dominic Sanchez, Philip Hinz

Proceedings Volume 13097, 130977B (2024) https://doi.org/10.1117/12.3020355

KEYWORDS: Adaptive optics, Wavefront sensors, Mirrors, Design, Actuators, Optomechanical design, Cameras, Lens arrays, Optical design, Optical alignment

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Proceedings Article | 26 August 2024 Poster + Paper

Poster + Paper

Design of a precision cryogenic rotary stage for optic or mask selection for the SCALES instrument mounted to the Keck 2 Telescope

C. Ratliff, N. MacDonald, J. Cabak, W. Deich, D. Sandford, M. Gonzales, A. Skemer, S. Sallum, D. Stelter, A. Hunter, R. Kupke, D. Dillon, D. Marques, C. Rodriguez, M. Savage, M. Kassis, J. Lyke, A. Hasan

Proceedings Volume 13100, 131006X (2024) https://doi.org/10.1117/12.3020421

KEYWORDS: Design, Mirrors, Optical surfaces, Cryogenics, Aluminum, Mirror surfaces, Telescopes, Equipment, Finite element methods, Vacuum

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Proceedings Article | 5 August 2024 Poster + Paper

Poster + Paper

Liger at W.M. Keck Observatory: assembly, integration, and testing

Aaron Brown, Shelley Wright, James Wiley, Reston Nash, Bob Weber, Evan Kress, Renate Kupke, James Larkin, Maren Cosens, Michael Fitzgerald, Marc Kassis, Chris Johnson, Tucker Jones, Ken Magnone, Rosalie McGurk, Eric Wang, Kanaka Warad, Sherry Yeh

Proceedings Volume 13096, 130967I (2024) https://doi.org/10.1117/12.3020784

KEYWORDS: Mirrors, Cryostats, Switches, Equipment, Vacuum, Imaging systems, Optical fabrication, Mirror mounts, Iterated function systems, Windows

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Proceedings Article | 31 July 2024 Presentation + Paper

Presentation + Paper

Liger at W.M. Keck Observatory: overall design and science drivers

Shelley Wright, Tucker Jones, James Larkin, Renate Kupke, Marc Kassis, Aaron Brown, David Andersen, Lee Armus, Bryson Cale, Maren Cosens, Devin Chu, Tuan Do, Chris Fassnacht, Deanne Fisher, Michael Fitzgerald, Andrea Ghez, Jenny Greene, Takeru Hayashi, Aurélien Hees, Jessie Hirtenstein, Chris Johnson, Jacqueline Keane, Patrick Kelly, Evan Kirby, Theodara Karalidi, Quinn Konopacky, Evan Kress, Jessica Lu, Jim Lyke, Kenneth Magnone, Jérôme Maire, Rosalie McGurk, Anne Medling, Maxwell Millar-Blanchaer, Quinn Minor, Reston Nash, Anna Nierenberg, Naveen Reddy, Michael Rich, Jean-Baptiste Ruffio, Nils-Erik Rundquist, Sanchit Sabhlok, David Sand, Ryan Sanders, Karin Sandstrom, Alice Shapley, Ji-Man Sohn, Arun Surya, Tommaso Treu, Eric Wang, Kanaka Warad, Robert Weber, James Wiley, Peter Wizinowich, Michael Wong, Sherry Yeh

Proceedings Volume 13096, 130960G (2024) https://doi.org/10.1117/12.3020803

KEYWORDS: Iterated function systems, Adaptive optics, Imaging systems, Design, Spectrographs, Sensors, Equipment, Infrared Imaging Spectrograph, Galactic astronomy, Spectral resolution

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Proceedings Article | 22 July 2024 Presentation + Paper

Presentation + Paper

Innovations and advances in instrumentation at the W. M. Keck Observatory, vol. III

Marc Kassis, Carlos Alvarez, Ashley Baker, Jeb Bailey, Ravinder Banyal, Robert Bertz, Charles Beichman, Antonin Bouchez, Aaron Brown, Matthew Brown, Kevin Bundy, Randall Campbell, Mark Chun, Jeff Cooke, William Deich, Richard Dekany, Greg Doppmann, Christopher Fassnacht, Jocelyn Ferrara, Michael Fitzgerald, Christoffer Fremling, Jason Fucik, Steven Gibson, Peter Gillingham, Karl Glazebrook, Timothee Greffe, Samuel Halverson, Grant Hill, Lynne Hillenbrand, Philip Hinz, Bradford Holden, Andrew Howard, Daniel Huber, Tucker Jones, Carolyn Jordan, Nemanja Jovanovic, Isabell Kain, Mansi Kasliwal, Evan Kirby, Quinn Konopacky, Shanti Krishnan, Shri Kulkarni, Renate Kupke, Kyle Lanclos, James Larkin, Scott Lilley, Larry Lingvay, Jessica Lu, James Lyke, Nicholas MacDonald, Christopher Martin, John Mather, Mateusz Matuszewski, Dimitri Mawet, Rosalie McGurk, Eduardo Marin, Bob Meeks, Maxwell Millar-Blanchaer, Reston Nash, James Neill, John O'Meara, Rishi Pahuja, Eliad Peretz, Nikolaus Prusinski, Matthew Radovan, Kodi Rider, Mitsuko Roberts, Connie Rockosi, Ryan Rubenzahl, Stephanie Sallum, Dale Sandford, Maureen Savage, Andy Skemer, Roger Smith, Charles Steidel, Jonathan Steiner, Deno Stelter, Josh Walawender, Kyle Westfall, Peter Wizinowich, Shelley Wright, Truman Wold, Jake Zimmer

Proceedings Volume 13096, 1309606 (2024) https://doi.org/10.1117/12.3016181

KEYWORDS: Equipment, Adaptive optics, Design, Observatories, Spectrographs, Imaging systems, Sensors, Telescopes, Spectroscopy, Imaging spectroscopy

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Proceedings Article | 19 July 2024 Poster

Poster

Liger at W.M. Keck Observatory: optical design and alignment strategy for the Liger integral field spectrograph

Renate Kupke, Shelley Wright, Aaron Brown, Maren Cosens, Michael Fitzgerald, Chris Johnson, Tucker Jones, Marc Kassis, Evan Kress, James Larkin, Kenneth Magnone, Jérôme Maire, Rosalie McGurk, Arun Surya, Eric Wang, James Wiley, Sherry Yeh

Proceedings Volume 13096, 130966M (2024) https://doi.org/10.1117/12.3020618

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Proceedings Article | 19 July 2024 Poster

Poster

Upgrades to the NIRC2 Instrument at WMKO

Carlos Alvarez, Timothee Greffe, David Hale, Riley Rosener, Vanshika Kansal, Kyle Lanclos, William Deich, Paul Richards, Matthew Brown, Maxwell Service, Roger Smith, Dimitri Mawet, Marc Kassis, Randall Campbell

Proceedings Volume 13096, 1309638 (2024) https://doi.org/10.1117/12.3020553

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

The Keck Cosmic Reionization Mapper project: adding red spectroscopy to the Keck Cosmic Web Imager Integral Field Spectrograph

Rosalie McGurk, Mateusz Matuszewski, James Neill, Chris Martin, Robert Bertz, Constance Rockosi, Marc Kassis

Proceedings Volume 13096, 1309647 (2024) https://doi.org/10.1117/12.3020646

KEYWORDS: Cameras, Telescopes, Equipment, Dichroic mirrors, Tunable filters, Optical gratings, Optical filters, Sensors, Mirrors, Imaging systems

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Liger at W.M. Keck Observatory: imager structural analysis, fabrication, and characterization plan

James Wiley, Aaron Brown, Renate Kupke, Maren Cosens, Shelley Wright, Jérôme Maire, Kenneth Magnone, Evan Kress, Eric Wang, Chris Johnson, James Larkin, Michael Fitzgerald, Marc Kassis, Tucker Jones

Proceedings Volume 13096, 130967B (2024) https://doi.org/10.1117/12.3018450

KEYWORDS: Imaging systems, Vacuum chambers, Equipment, Optical fabrication, Fabrication, Adaptive optics, Simulations, Design, Optical alignment

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Calibration unit design for Keck/High-Resolution Infrared Spectrograph for Exoplanet Characterization (HISPEC)

Ben Sappey, Quinn Konopacky, Jerome Maire, Ashley Baker, Nemanja Jovanovic, Samuel Halverson, Rose Gibson, Stephanie Leifer, Jocelyn Ferrara, Rob Bertz, Dimitri Mawet, Michael Fitzgerald, Marc Kassis, John Bailey, Jason Fucik, Don Neill, Chris Johnson, Ken Magnone

Proceedings Volume 13096, 130966K (2024) https://doi.org/10.1117/12.3020409

KEYWORDS: Frequency combs, Calibration, Spectrographs, Lamps, Fabry Perot interferometers, Gas cells, Equipment, Sensors, Single mode fibers, Tunable filters, Optical filters

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Optical design of multi-field integral field unit spectrograph for the ORCAS Keck Instrument Development II (ORKID II) instrument

Bert Pasquale, Eliad Peretz, Guangjun Gao, Peter Kurczynski, Victor Chambers, Lenward Seals, Max Millar-Blanchaer, Peter Wizinowich, Marc Kassis, Peter Plavchan, Molly Adams

Proceedings Volume 13096, 1309660 (2024) https://doi.org/10.1117/12.3019837

KEYWORDS: Mirrors, Design, Spectrographs, Optical design, Spectral resolution, Optical surfaces, Optical components, Manufacturing, Iterated function systems, Optical instrument design

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Overview and status of the fiber delivery subsystem (FIB) of Keck/HISPEC, the diffraction-limited y-K band spectrograph for exoplanet characterization

Nemanja Jovanovic, Greg Sercel, Takayuki Kotani, John Bailey, Ashley Baker, Svarun Soda, Aoi Takahashi, Jonathan Lin, Yoo Jung Kim, Michael Fitzgerald, Sebastien Vievard, Chris Betters, Sergio Leon-Saval, Jocelyn Ferrara, Truman Wold, Jonathan Steiner, Jim Thorne, Marc Kassis, Motohide Tamura, Dimitri Mawet

Proceedings Volume 13096, 130966I (2024) https://doi.org/10.1117/12.3020499

KEYWORDS: Single mode fibers, Switches, Switching, Calibration, Microelectromechanical systems, Optical switching, Spectrographs

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

Fiber-fed high-resolution infrared spectroscopy at the diffraction limit with Keck-HISPEC and TMT-MODHIS: status update

Dimitri Mawet, Michael Fitzgerald, Quinn Konopacky, Nemanja Jovanovic, Ashley Baker, David Andersen, Etienne Artigau, John Bailey, Charles Beichman, Björn Benneke, Rob Bertz, Christopher Betters, David Brearly, Aaron Brown, James Brugger, Richard Dekany, Jocelyn Ferrara, Alberto Franco, Jason Fucik, Rose Gibson, Tim Greffe, Samuel Halverson, Christopher Johnson, Marc Kassis, Takayuki Kotani, Yoo Jung Kim, Stephanie Leifer, Sergio Leon-Saval, Jonathan Lin, Larry Lingvay, Jerome Maire, Eduardo Marin, Kenneth Magnone, Don Neill, Rishi Pahuja, Garreth Ruane, Greg Sercel, Svarun Soda, Ji Man Sohn, Jonathan Steiner, Motohide Tamura, Jim Thorne, Eric Wang, Truman Wold, Ray Zarzaca

Proceedings Volume 13096, 130960W (2024) https://doi.org/10.1117/12.3019238

KEYWORDS: Spectrographs, Exoplanets, Equipment, Design, Planets, Spectral resolution, Single mode fibers, Infrared spectroscopy, Adaptive optics, Telescopes

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

SCALES status report

R. Deno Stelter, Andrew Skemer, Stephanie Sallum, Nick MacDonald, Renate Kupke, Christopher Ratliff, Cyril Bourgenot, Gerald Cabak, Michael Gonzales, Cristian Rodriguez, Aaron Hunter, Ravinder Banyal, Thirupathi Sivarani, Michael Fitzgerald, Marc Kassis, Olivier Absil, Carlos Alvarez, Natatsha Batalha, Marc-André Boucher, Timothy Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Dicakar, Étienne Gauvin, Thomas Greene, Armirul Hasan, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Govinda K. V., Isabel Kain, Mackenzie Lach, Jean-Thomas Landry, Michael Liu, Jim Lyke, Kenneth Magone, Eduardo Marin, Raquel Martinez, Dimitri Mawet, Rosalie McGurk, Brittany Miles, Ajin Parkash, Dale Sandford, Ramya Sethuram, Patrick Sheehan, Ji Man Sohn, Jordan Stone, Arun Surya, Hari Varshney, Eric Wang

Proceedings Volume 13096, 1309619 (2024) https://doi.org/10.1117/12.3020806

KEYWORDS: Mirrors, Cryostats, Coronagraphy, Spectrographs, Telescopes, Imaging systems, Exoplanets

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

Next generation low resolution Wide Field Multi-Object Optical Spectrometer for W.M. Keck Observatory

Jason Fucik, Charles Steidel, Bradford Holden, Richard Dekany, Lauren Fahey, Jocelyn Ferrara, Steven Gibson, Timothee Greffe, Marc Kassis, Larry Lingvay, Reston Nash, Rishi Pahuja, Roger Smith, Bob Weber, Jake Zimmer

Proceedings Volume 13096, 130968Z (2024) https://doi.org/10.1117/12.3020284

KEYWORDS: Equipment, Design, Cameras, Telescopes, Spectroscopy, Sensors, Optical filters, Diffraction gratings, Mirrors

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

ORCAS Keck mission and instrument development

Eliad Peretz, Peter Wizinowich, Eduardo Marin, Richard Butler, Bert Pasquale, Maxwell Millar-Blanchaer, Scott Lilley, Luke Gers, Shui Hung Kwok, Jason Chin, Sam Ragland, Ed Wetherell, Brett Smith, John O'Meara, Marc Kassis, Greg Aldering, Susana Deustua, Rogier Windhorst, Christian Marois, Saul Perlmutter, Sara Seager, Breann Sitarski, Guillaume Filion, Jean Thomas Landry, Étienne Gauvin, J. Fowler, Rebecca Jensen-Clem, Eric Nielsen, Imke de Pater, Peter Plavchan, Steph Sallum, Shobita Satyapal, John Mather, Peter Kurczynski, Kayla Carmical, Jack Grossman, Andrew Lewis, Maya Wertheim, Vivian Palmer, Keshet Shavit, Kevin Hall

Proceedings Volume 13096, 130960M (2024) https://doi.org/10.1117/12.3018920

KEYWORDS: Adaptive optics, Stars, Telescopes, Image segmentation, Equipment, Asteroids, Calibration, Space operations, Exoplanets, Spatial resolution

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

System design of the Keck Planet Finder

Steven Gibson, Andrew Howard, Kodi Rider, Samuel Halverson, Arpita Roy, Ashley Baker, Jerry Edelstein, Christopher Smith, Benjamin Fulton, Josh Walawender, Max Brodheim, Matthew Brown, Dwight Chan, Fei Dai, William Deich, Colby Gottschalk, Jason Grillo, David Hale, Grant Hill, Bradford Holden, Aaron Householder, Howard Isaacson, Yuzo Ishikawa, Sharon Jelinsky, Marc Kassis, Stephen Kaye, Russ Laher, Kyle Lanclos, Chien-Hsiu Lee, Scott Lilley, Benjamin McCarney, Timothy Miller, Joel Payne, Erik Petigura, Claire Poppett, Michael Raffanti, Ryan Rubenzahl, Dale Sandford, Christian Schwab, Abby Shaum, Martin Sirk, Roger Smith, Jim Thorne, John Valliant, Adam Vandenberg, Shin-Ywan Wang, Edward Wishnow, Truman Wold, Sherry Yeh, Steve Baca, Charles Beichman, Bruce Berriman, Thomas Brown, Kelleen Casey, Jason Chin, James Chong, David Cowley, Mark Devenot, Hamza Elwir, Daniel Finstad, Matthew Fraysse, Ean James, Elisha Jhoti, Joe Killian, Obie Levine, Adela Chenyang Li, Eduardo Marin, Steven Milner, Craig Nance, Timothy O'Hanlon, Daniel Orr, Roberto Ortiz-Soto, Tom Payne, Jacob Pember, Gert Raskin, Maureen Savage, Andreas Seifahrt, Brett Smith, Rob Storesund, Julian Stürmer, Nick Suominen, Jerez Tehero, Tod Von Boeckmann, Keith Wages, Marie Weisfeiler, Mavourneen Wilcox, Peter Wizinowich, Anna Wolfenberger

Proceedings Volume 13096, 1309609 (2024) https://doi.org/10.1117/12.3017841

KEYWORDS: Spectroscopy, Equipment, Calibration, Design, Planets, Telescopes, Cameras, Zerodur, Charge-coupled devices, Doppler effect

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Proceedings Article | 5 October 2023 Presentation + Paper

Presentation + Paper

The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities

Quinn Konopacky, Ashley Baker, Dimitri Mawet, Michael Fitzgerald, Nemanja Jovanovic, Charles Beichman, Garreth Ruane, Rob Bertz, Hiroshi Terada, Richard Dekany, Larry Lingvay, Marc Kassis, David Anderson, Motohide Tamura, Björn Benneke, Thomas Beatty, Tuan Do, Shogo Nishiyama, Peter Plavchan, Jason Wang, Ji Wang, Adam Burgasser, Jean-Baptiste Ruffio, Huihao Zhang, Aaron Brown, Jason Fucik, Aidan Gibbs, Rose Gibson, Sam Halverson, Christopher Johnson, Sonia Karkar, Takayuki Kotani, Evan Kress, Stephanie Leifer, Kenneth Magnone, Jerome Maire, Rishi Pahuja, Michael Porter, Mitsuko Roberts, Ben Sappey, Jim Thorne, Eric Wang, Etienne Artigau, Geoffrey Blake, Gabriela Canalizo, Guo Chen, Greg Doppmann, René Doyon, Courtney Dressing, Min Fang, Thomas Greene, Greg Herczeg, Lynne Hillenbrand, Andrew Howard, Stephen Kane, Tiffany Kataria, Eliza Kempton, Heather Knutson, David Lafrenière, Chao Liu, Stanimir Metchev, Max Millar-Blanchaer, Norio Narita, Gajendra Pandey, S.P. Rajaguru, Paul Robertson, Colette Salyk, Bun'ei Sato, Evertt Schlawin, Sujan Sengupta, Thirupathi Sivarani, Warren Skidmore, Gautam Vasisht, Chikako Yasui, Hui Zhang

Proceedings Volume 12680, 1268007 (2023) https://doi.org/10.1117/12.2681522

KEYWORDS: Planets, Stars, Exoplanets, Spectrographs, Atmospheres, Spectroscopy, Telescopes

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Liger at Keck Observatory: design of the data reduction system and software interfaces

Nils Rundquist, Andrea Zonca, Arun Surya, Shelley A. Wright, Aaron Brown, Maren Cosens, Michael Fitzgerald, Chris Johnson, Marc Kassis, Renate Kupke, Kyle Lanclos, James E. Larkin, Kenneth G. Magnone, Rosalie McGurk, Ji Man Sohn, Gregory Walth, James E. Wiley, Sherry Yeh

Proceedings Volume 12189, 121891M (2022) https://doi.org/10.1117/12.2630693

KEYWORDS: Iterated function systems, Sensors, Computing systems, Imaging systems, Calibration, IRIS Consortium, Image processing, Keck Observatory, Human-machine interfaces, Data processing

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Design of SCALES: a 2-5 micron coronagraphic integral field spectrograph for Keck Observatory

Andrew Skemer, R. Deno Stelter, Stephanie Sallum, Nicholas MacDonald, Renate Kupke, Christopher Ratliff, Ravinder Banyal, Amirul Hasan, Hari Mohan Varshney, Arun Surya, Ajin Prakaesh, Sivarani Thirupathi, Ramya Sethuram, Govinda K.V., Michael Fitzgerald, Eric Wang, Marc Kassis, Olivier Absil, Carlos Alvarez, Natasha Batalha, Marc-André Boucher, Cyril Bourgenot, Timothy Brandt, Zackery Briesemeister, Katherine de Kleer, Imke de Pater, William Deich, Devika Divakar, Guillaume Filion, Étienne Gauvin, Michael Gonzales, Thomas Greene, Philip Hinz, Rebecca Jensen-Clem, Christopher Johnson, Isabel Kain, Gabriel Kruglikov, Mackenzie Lach, Jean-Thomas Landry, Jialin Li, Michael Liu, James Lyke, Kenneth Magnone, Eduardo Marin, Emily Martin, Raquel Martinez, Dimitri Mawet, Brittany Miles, Dale Sandford, Patrick Sheehan, Ji Man Sohn, Jordan Stone

Proceedings Volume 12184, 121840I (2022) https://doi.org/10.1117/12.2630577

KEYWORDS: Exoplanets, Spectrographs, Planets, Sensors, Coronagraphy, Imaging systems, Adaptive optics, Mirrors, Spectroscopy

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Liger at Keck Observatory: design of imager optical assembly and spectrograph re-imaging optics

James Wiley, Aaron Brown, Renate Kupke, Maren Cosens, Shelley Wright, Michael Fitzgerald, Chris Johnson, Tucker Jones, Marc Kassis, Evan Kress, James E. Larkin, Kenneth Magnone, Rosalie McGurk, Nils Rundquist, Eric Wang, Sherry Yeh

Proceedings Volume 12184, 1218464 (2022) https://doi.org/10.1117/12.2630611

KEYWORDS: Imaging systems, Sensors, Cameras, Optical fabrication, Adaptive optics, Mirrors, Iterated function systems, Image sensors, Spectrographs, Optical filters

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Development of the FOBOS focal plane positioner

David Adams, Jon Lawrence, Helen McGregor, Ellie O'Brien, Celestina Lacombe, Nuria Lorente, Michael Goodwin, Rebecca Brown, Michael Thomakos, Tayyaba Zafar, Nick MacDonald, Kyle Westfall, Kevin Bundy, Renate Kupke, Marc Kassis, Claire Poppett

Proceedings Volume 12184, 121846K (2022) https://doi.org/10.1117/12.2627289

KEYWORDS: Galactic astronomy, Spectrographs, Robots, Spectroscopy, Optical fibers, Glasses, Astronomical imaging, Telescopes

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Fiber-fed high-resolution infrared spectroscopy at the diffraction limit with Keck-HISPEC and TMT-MODHIS: status update

Dimitri Mawet, Michael Fitzgerald, Quinn Konopacky, Nemanja Jovanovic, Ashley Baker, Charles Beichman, Rob Bertz, Richard Dekany, Jason Fucik, Mitsuko Roberts, Michael Porter, Rishi Pahuja, Garreth Ruane, Stephanie Leifer, Samuel Halverson, Aidan Gibbs, Chris Johnson, Evan Kress, Kenneth Magnone, Ji Man Sohn, Eric Wang, Aaron Brown, Jerome Maire, Ben Sappey, David Andersen, Hiroshi Terada, Marc Kassis, Etienne Artigau, Bjorn Benneke, Rene Doyon, Takayuki Kotani, Motohide Tamura, Thomas Beatty, Peter Plavchan, Tuan Do, Shogo Nishiyama, Jason Wang, Ji Wang

Proceedings Volume 12184, 121841R (2022) https://doi.org/10.1117/12.2630142

KEYWORDS: Planets, Exoplanets, Stars, Spectrographs, Spectroscopy, Spectral resolution, Adaptive optics, Single mode fibers, Infrared spectroscopy, Telescopes

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Innovations and advances in instrumentation at the W. M. Keck Observatory, vol. II

Marc Kassis, Steve Allen, Carlos Alvarez, Ravinder Banyal, Robert Bertz, Charles Beichman, Aaron Brown, Matthew Brown, Gerald Cabak, Kevin Bundy, Sylvain Cetre, Jason Chin, Mark Chun, Will Deich, Richard Dekany, Jacques Delorme, Mark Devenot, Greg Doppmann, Michael Fitzgerald, Jason Fucik, Grant Hill, Philip Hinz, Bradford Holden, Andrew Howard, Maodong Gao, Steve Gibson, Percy Gomez, Colby Gottschalk, Peter Gillingham, Tucker Jones, Nemanja Jovanovic, Evan Kirby, Quinn Konopacky, Shanti Krishnan, Renate Kupke, James Larkin, Stephanie Leifer, Hilton Lewis, Scott Lilley, Jessica Lu, James Lyke, Nick MacDonald, Eduardo Marin, Matt Matuszewski, Dimitri Mawet, Rosalie McGurk, Maxwell Millar-Blanchaer, Reston Nash, Craig Nance, James Neill, John O'Meara, Eliad Peretz, Claire Poppett, John Mather, Matthew Radovan, Mitsuko Roberts, Sam Ragland, Kodi Rider, Constance Rockosi, Dale Sandfor, Boqiang Shen, Charles Steidel, Sunil Simha, Andy Skemer, Deno Stelter, Avinash Surendran, James Thorne, Ben McCarney, Kyle Lanclos, Ashley Baker, Ryan Rubenzahl, Arpita Roy, Sam Halverson, Jerry Edelstein, Christopher Martin, Maureen Savage, Dale Sandford, Stephanie Sallum, Josh Walawender, Peter Wizinowich, Kyle Westfall, Kerry Vahala, Shelley Wright, Truman Wold, Sherry Yeh

Proceedings Volume 12184, 1218405 (2022) https://doi.org/10.1117/12.2628630

KEYWORDS: Adaptive optics, Spectrographs, Exoplanets, Sensors, Spectroscopy, Imaging systems, Telescopes, Planets, Cameras, Observatories

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

A fiber injection unit for the Keck Planet Finder: opto-mechanical design

Scott Lilley, Kodi Rider, Jim Thorne, Marc Kassis, Steve Gibson, Andrew Howard, Kyle Lanclos, Josh Walawender

Proceedings Volume 12184, 121844K (2022) https://doi.org/10.1117/12.2628818

KEYWORDS: Calcium, Calibration, Fiber science, Adaptive optics, Telescopes, Cameras, Computer aided design, Solid modeling, Mirrors, Optical design

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Liger at Keck Observatory: image detector and IFS pick-off mirror assembly

Maren Cosens, Shelley Wright, Aaron Brown, Michael Fitzgerald, Chris Johnson, Tucker Jones, Marc Kassis, Evan Kress, Renate Kupke, James Larkin, Kenneth Magnone, Rosalie McGurk, Nils-Erik Rundquist, Ji Man Sohn, Eric Wang, James Wiley, Sherry Yeh

Proceedings Volume 12184, 121845Y (2022) https://doi.org/10.1117/12.2630219

KEYWORDS: Mirrors, Imaging systems, Iterated function systems, Image sensors, Spectrographs, Tolerancing, Keck Observatory, Adaptive optics, Actuators

Read Abstract +

Proceedings Article | 29 August 2022 Presentation

Presentation

Liger at Keck Observatory: overall design specifications and science drivers

Shelley Wright, Tucker Jones, James Larkin, Renate Kupke, Marc Kassis, Michael Fitzgerald, Aaron Brown, Maren Cosens, James Wiley, Nils-Erik Rundquist, Evan Kress, Eric Wang, Ji Man Sohn, Chris Johnson, Ken Magnone, Sherry Yeh, Rosalie McGurk

Proceedings Volume 12184, 121840B (2022) https://doi.org/10.1117/12.2630713

KEYWORDS: Keck Observatory, Iterated function systems, Adaptive optics, Spectrographs, Cameras, Spectral resolution, Optical instrument design, Imaging systems, Thirty Meter Telescope, Telescopes

Read Abstract +

Proceedings Article | 29 August 2022 Presentation

Presentation

The W.M. Keck Observatory Data Services Initiative: Creating data that is useful, usable, and quick

John O'Meara, Matthew Brown, Jeffrey Mader, Max Brodheim, Tyler Tucker, Josh Walawender, Lucas Fuhrman, Michael Lundquist, Luca Rizzi, Marc Kassis, Charles Beichman, Sean Carey, Bruce Berriman, Meca Lynn

Proceedings Volume 12186, 121860G (2022) https://doi.org/10.1117/12.2629073

KEYWORDS: Data archive systems, Keck Observatory, Observatories, Calibration, Databases, Astronomy

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Proceedings Article | 29 August 2022 Presentation

Presentation

An ASM-based AO system for W.M. Keck Observatory

Philip Hinz, Christoph Baranec, Kevin Bundy, Rachel Bowens-Rubin, Mark Chun, Richard Dekany, Brad Holden, Wouter Jonker, Marc Kassis, Renate Kupke, Stefan Kuiper, Olivier Lai, Jessica Lu, Nick MacDonald, Matthew Maniscalco, Emily Martin, Claire Max, Guillaume Molodij, Matthew Radovan, Sam Ragland, Stephanie Sallum, Alice Shapley, Andrew Skemer, Deno Stelter, Peter Wizinowich

Proceedings Volume 12185, 121852A (2022) https://doi.org/10.1117/12.2630683

KEYWORDS: Adaptive optics, Keck Observatory, Telescopes, Mirrors, Actuators, Infrared telescopes, Objectives, Infrared radiation, Ecosystems, Atmospheric turbulence

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Proceedings Article | 28 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Characterization and performance of the upgraded NIRSPEC on the W. M. Keck Telescope

Ronald López, Erika Hoffman, Greg Doppmann, Michael Fitzgerald, Chris Johnson, Marc Kassis, Kyle Lanclos, Jim Lyke, Emily Martin, Ian McLean, Ji Man Sohn, Jason Weiss

Proceedings Volume 11447, 114476B (2020) https://doi.org/10.1117/12.2563075

KEYWORDS: Sensors, Spectroscopy, Spectrographs, Telescopes, Cameras, Photometry, Spectroscopes, Stars, Calibration, Lamps

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Liger for next-generation Keck adaptive optics: opto-mechanical dewar for imaging camera and slicer

James Wiley, Kalp Mathur, Aaron Brown, Shelley Wright, Maren Cosens, Jerome Maire, Michael Fitzgerald, Tucker Jones, Marc Kassis, Evan Kress, Renate Kupke, James Larkin, Jim Lyke, Eric Wang, Sherry Yeh

Proceedings Volume 11447, 1144758 (2020) https://doi.org/10.1117/12.2563028

KEYWORDS: Adaptive optics, Optical design, Electronics, Control systems, Spectrographs, Iterated function systems, Imaging systems, Keck Observatory, Vibration isolation, Head

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Liger for next-generation Keck AO: filter wheel and pupil design

Maren Cosens, Shelley Wright, Pauline Arriaga, Aaron Brown, Michael Fitzgerald, Tucker Jones, Marc Kassis, Evan Kress, Renate Kupke, James Larkin, Jim Lyke, Eric Wang, James Wiley, Sherry Yeh

Proceedings Volume 11447, 114474X (2020) https://doi.org/10.1117/12.2561837

KEYWORDS: Optical filters, Adaptive optics, Digital filtering, Imaging systems, Spectrographs, Iterated function systems, Image filtering, Keck Observatory, Spectral resolution, Tolerancing

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Proceedings Article | 13 December 2020 Presentation

Presentation

Liger for Next-Generation Keck Adaptive Optics

Shelley Wright, Tucker Jones, James Larkin, Renate Kupke, Marc Kassis, Michael Fitzgerald, Aaron Brown, Maren Cosens, Evan Kress, Nils-Erik Rundquist, Arun Surya, Eric Wang, James Wiley

Proceedings Volume 11447, 114471Q (2020) https://doi.org/10.1117/12.2563039

KEYWORDS: Adaptive optics, Iterated function systems, Optical design, Imaging systems, Optical instrument design, Spectrographs, Keck Observatory, Solar system, Galactic astronomy, Observatories

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Update on the preliminary design of SCALES: the Santa Cruz Array of Lenslets for Exoplanet Spectroscopy

R. Deno Stelter, Andrew Skemer, Steph Sallum, Renate Kupke, Phil Hinz, Dimitri Mawet, Rebecca Jensen-Clem, Christopher Ratliffe, Nicholas MacDonald, William Deich, Gabriel Kruglikov, Marc Kassis, Jim Lyke, Zackary Briesemeister, Brittany Miles, Benjamin Gerard, Michael Fitzgerald, Timothy Brandt, Christian Marois

Proceedings Volume 11447, 1144764 (2020) https://doi.org/10.1117/12.2562768

KEYWORDS: Exoplanets, Imaging systems, Imaging spectroscopy, Spectroscopy, Planetary systems, Iterated function systems, Spectrographs, Spectral resolution, Coronagraphy, Keck Observatory

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

The Keck-FOBOS spectroscopic facility: conceptual design

Kevin Bundy, Kyle Westfall, Nick MacDonald, Renate Kupke, Claire Poppett, Timothy Miller, Jon Lawrence, Celestina Saavedra Lacombea, Renbin Yan, Michael Goodwin, Marc Kassis, John O'Meara, Daniel Masters, Joseph Burchett, Benjamin Williams, Robert Rich, V. Villar, Nathan Sandford, Yuan-Sen Ting, Phil Hinz, Chad Schafer, Rachel Mandelbaum, Marina Huang, J. Prochaska, Puragra Guhathakurta

Proceedings Volume 11447, 114471D (2020) https://doi.org/10.1117/12.2562914

KEYWORDS: Imaging spectroscopy, Spectrographs, Spectroscopy, Panoramic photography, Large Synoptic Survey Telescope, Telescopes, Excel, Cameras

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The Fiber Optic Broad-band Optical Spectrometer (FOBOS) is a high-priority spectroscopic facility concept for the W. M. Keck Observatory. Here, we provide an update on the FOBOS conceptual design. FOBOS will deploy 1800 fibers across the 20-arcminute field-of-view of the Keck II Telescope. Starbugs fiber positioners will be used to deploy individual fibers as well as fiber-bundle arrays (integral field units, IFUs). Different combinations of active single fibers or IFUs can be selected to carry light to one of three mounted spectrographs, each with a 600-fiber pseudoslit. Each spectrograph has four wavelength channels, enabling end-to-end instrument sensitivity greater than 30% from 0.31-1.0 µm at a spectral resolution of R ~ 3500. With its high fiber density on a large telescope and modest field-of-view, FOBOS is optimized to obtain deep spectroscopy for large samples. In single- fiber mode, it will deliver premier spectroscopic reference sets for maximizing the information (e.g., photometric redshifts) that can be extracted from panoramic imaging surveys obtained from the forthcoming Rubin and Roman Observatories. Its IFUs will map emission from the circumgalactic interface between forming galaxies and the intergalactic medium at z ~ 2–3, and lay the path for multiplexed resolved spectroscopy of high-z galaxies aided by ground-layer and multi-object adaptive optics. In the nearby universe, its high sampling density and combination of single-fiber and IFU modes will revolutionize our understanding of the M31 disk and bulge via stellar populations and kinematics. Finally, with a robust and intelligent target and program allocation system, FOBOS will be a premier facility for follow-up of rare, faint, and transient sources that can be interleaved into its suite of observing programs. With a commitment to delivering science-ready data products, FOBOS will enable unique and powerful combinations of focused, PI-led programs and community-driven observing campaigns that promise major advances in cosmology, galaxy formation, time-domain astronomy, and stellar evolution.

Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Keck Planet Finder: design updates

Steven Gibson, Andrew Howard, Kodi Rider, Arpita Roy, Jerry Edelstein, Marc Kassis, Jason Grillo, Sam Halverson, Martin Sirk, Christopher Smith, Steve Allen, Ashley Baker, Charles Beichman, Bruce Berriman, Thomas Brown, Kelleen Casey, Jason Chin, David Coutts, David Cowley, William Deich, Tobias Feger, Benjamin Fulton, Luke Gers, Yulia Gurevich, Yuzo Ishikawa, Ean James, Sharon Jelinsky, Stephen Kaye, Kyle Lanclos, Adela Li, Scott Lilley, Ben McCarney, Tim Miller, Steve Milner, Timothy O'Hanlon, Jacob Pember, Mike Raffanti, Constance Rockosi, Ryan Rubenzahl, Dave Rumph, Dale Sandford, Maureen Savage, Christian Schwab, Andreas Seifahrt, Abby Shaum, Roger Smith, Julian Stuermer, Jim Thorne, Adam Vandenberg, Tod Von Boeckmann, Cindy Wang, Qifan Wang, Marie Weisfeiler, Mavourneen Wilcox, Edward Wishnow, Peter Wizinowich, Truman Wold, Anna Wolfenberger

Proceedings Volume 11447, 1144742 (2020) https://doi.org/10.1117/12.2561783

KEYWORDS: Planets, Spectroscopy, Keck Observatory, Exoplanets, Doppler effect, Optical fabrication, Zerodur, Optical benches, Charge-coupled devices, CCD image sensors

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Proceedings Article | 16 August 2018 Presentation + Paper

Presentation + Paper

An overview of the NIRSPEC upgrade for the Keck II telescope

Emily Martin, Michael Fitzgerald, Ian McLean, Gregory Doppmann, Marc Kassis, Ted Aliado, John Canfield, Chris Johnson, Evan Kress, Kyle Lanclos, Kenneth Magnone, Ji Man Sohn, Eric Wang, Jason Weiss

Proceedings Volume 10702, 107020A (2018) https://doi.org/10.1117/12.2312266

KEYWORDS: Sensors, Cameras, Optical filters, Electronics, Telescopes, Head, Optical design, Motion controllers, Collimators, Spectroscopy

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Fabrication completion and commissioning of a deployable tertiary mirror for the Keck I Telescope

C. Ratliff, G. Cabak, A. Phillips, X. Prochaska, W. Deich, D. Sandford, J. Nelson, D. Cowley, A. Tripsas, M. Bolte, S. Park, M. Peck, P. Zachary, T. Wold, M. Dahler, M. Kassis, A. Vandenberg, J. Ward

Proceedings Volume 10706, 1070611 (2018) https://doi.org/10.1117/12.2312207

KEYWORDS: Mirrors, Telescopes, Kinematics, Actuators, Computer aided design, Adaptive optics, Control systems, Collimation, Servomechanisms, Computer programming

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Ground layer adaptive optics for the W. M. Keck Observatory: feasibility study

J. Lu, M. Chun, S. Ammons, K. Bundy, R. Dekany, T. Do, D. Gavel, M. Kassis, O. Lai, C. Martin, C. Max, C. Steidel, L. Wang, K. Westfall, P. Wizinowich

Proceedings Volume 10703, 107030N (2018) https://doi.org/10.1117/12.2314417

KEYWORDS: Telescopes, Image quality, Galactic astronomy, Adaptive optics, Spectrographs, Astronomical imaging, Keck Observatory, Point spread functions, Spectroscopy

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Proceedings Article | 6 July 2018 Paper

Paper

Keck Planet Finder: preliminary design

Steven Gibson, Andrew Howard, Arpita Roy, Christopher Smith, Sam Halverson, Jerry Edelstein, Marc Kassis, Edward Wishnow, Michael Raffanti, Steve Allen, Jason Chin, David Coutts, David Cowley, Jim Curtis, William Deich, Tobias Feger, Daniel Finstad, Yulia Gurevich, Yuzo Ishikawa, Ean James, Elisha Jhoti, Kyle Lanclos, Scott Lilley, Tim Miller, Steve Milner, Tom Payne, Kodi Rider, Constance Rockosi, Dale Sandford, Christian Schwab, Andreas Seifahrt, Martin Sirk, Roger Smith, Julian Stuermer, Marie Weisfeiler, Mavourneen Wilcox, Adam Vandenberg, Peter Wizinowich

Proceedings Volume 10702, 107025X (2018) https://doi.org/10.1117/12.2311565

KEYWORDS: Spectroscopy, Calibration, Planets, Zerodur, Doppler effect

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

Innovations and advances in instrumentation at the W. M. Keck Observatory

Marc Kassis, Dwight Chan, Shui Kwok, Tomas Krasuski, James Lyke, Sam Ragland, Scott Lilley, Sylvain Cetre, Peter Wizinowich, Hilton Lewis, Percy Gomez, Luca Rizzi, James Larkin, Tuan Do, Michael Fitzgerald, Andy Skemer, J. Xavier Prochaska, Kyle Westfall, Ben Mazin, Dimitri Mawet, Keith Matthews, Christopher Martin, Andrew Howard, Jessica Lu, Mark Chun

Proceedings Volume 10702, 1070207 (2018) https://doi.org/10.1117/12.2312316

KEYWORDS: Adaptive optics, Telescopes, Spectrographs, Sensors, Spectroscopy, Optical fibers, Observatories, Imaging systems, Control systems, Mirrors

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Proceedings Article | 2 September 2016 Open Access

Open Access

Paper

The AIROPA software package: milestones for testing general relativity in the strong gravity regime with AO

Gunther Witzel, Jessica Lu, Andrea Ghez, Gregory Martinez, Michael Fitzgerald, Matthew Britton, Breann Sitarski, Tuan Do, Randall Campbell, Maxwell Service, Keith Matthews, Mark Morris, E. Becklin, Peter Wizinowich, Sam Ragland, Greg Doppmann, Chris Neyman, James Lyke, Marc Kassis, Luca Rizzi, Scott Lilley, Rachel Rampy

Proceedings Volume 9909, 99091O (2016) https://doi.org/10.1117/12.2233872

KEYWORDS: Point spread functions, Adaptive optics, Photometry, General relativity, Sensors, Data modeling, Stars, Optical transfer functions, Atmospheric modeling, Instrument modeling

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Proceedings Article | 3 August 2016 Paper

Paper

Operational performance of MOSFIRE with its cryogenic configurable slitmask unit at the W. M. Keck Observatory

Marc Kassis, Ian McLean, Charles Steidel, Keith Matthews, James Lyke, Luca Rizzi, Dwight Chan, Jason Weiss, Sean Adkins, Peter Spanoudakis, Philippe Schwab, Emmanuel Onillon, Leszek Lisowski, Patrick Theurillat, Olivier Chételat, Christophe Meier

Proceedings Volume 9908, 99080E (2016) https://doi.org/10.1117/12.2233006

KEYWORDS: Keck Observatory, Spectrographs, Telescopes, Stars, Galactic astronomy, Sensors, Neodymium, Calibration, Spectroscopy, Optical filters

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Proceedings Article | 13 September 2012 Paper

Paper

The slitmask alignment tool: robust, efficient, and astronomer-friendly software for aligning multi-object slitmasks

Marc Kassis, Gregory Wirth, Andrew Phillips, Charles Steidel

Proceedings Volume 8448, 844807 (2012) https://doi.org/10.1117/12.926693

KEYWORDS: Stars, Telescopes, Image processing, Spectrographs, Astronomical imaging, Image acquisition, Sensors, Spectroscopes, Optical alignment, Infrared radiation

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Proceedings Article | 15 July 2010 Paper

Paper

The low-resolution imaging spectrograph red channel CCD upgrade: fully depleted, high-resistivity CCDs for Keck

C. Rockosi, R. Stover, R. Kibrick, C. Lockwood, M. Peck, D. Cowley, M. Bolte, S. Adkins, B. Alcott, S. Allen, B. Brown, G. Cabak, W, Deich, D, Hilyard, M, Kassis, K, Lanclos, J, Lewis, T, Pfister, A, Phillips, L, Robinson, M, Saylor, M, Thompson, J, Ward, M, Wei, C, Wright

Proceedings Volume 7735, 77350R (2010) https://doi.org/10.1117/12.856818

KEYWORDS: Charge-coupled devices, Spectrographs, Sensors, Astronomy, Current controlled current source, CCD image sensors, Image resolution, Telescopes, Observatories, Sensor performance

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Proceedings Article | 12 July 2008 Paper

Paper

AO operations at the W. M. Keck Observatory

Randall Campbell, David Le Mignant, Marcos van Dam, Al Conrad, Kenny Grace, Marc Kassis, James Lyke, Hien Tran, Jason Chin, Elizabeth Chock, Steven Doyle, Robert Goodrich, Erik Johansson, Tomas Krasuski, Christine Melcher, Douglas Summers, Roger Sumner, Peter Wizinowich

Proceedings Volume 7016, 701604 (2008) https://doi.org/10.1117/12.790118

KEYWORDS: Adaptive optics, Telescopes, Observatories, Stars, Keck Observatory, Satellites, Laser safety, Safety, Calibration, Space telescopes

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Proceedings Article | 7 March 2003 Paper

Paper

MIRSI: a mid-infrared spectrometer and imager

Lynne Deutsch, Joseph Hora, Joseph Adams, Marc Kassis

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461436

KEYWORDS: Digital signal processing, Telescopes, Cameras, Imaging systems, Spectroscopy, Human-machine interfaces, Mid-IR, Optical filters, Sensors, Clocks

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Showing 5 of 47 publications

Conference Committee Involvement (1)

Ground-based and Airborne Instrumentation for Astronomy X

16 June 2024 | Yokohama, Japan

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