Dr. Narsireddy Anugu Profile

Dr. Narsireddy Anugu

Staff scientist

SPIE Involvement:

Author

Area of Expertise:

Optical/infrared astronomical interferometry , Adaptive optics

Websites:

Company Website

Profile Summary

Narsireddy Anugu earned his Ph.D. by involving in the successful development of VLTI/GRAVITY in 2017 working in Portugal. GRAVITY has produced several interesting science results including the black hole at the center of our Galactic Center. After his Ph.D., he joined as a postdoctoral fellow at the University of Exeter, UK, and University of Michigan. Being part of this group, Anugu played an important role in the sensitivity upgrade of MIRC and involved in the development of MYSTIC and CHARA adaptive optics instruments. These efforts aimed at observing discs around faint young stellar objects with near-infrared interferometry.

Publications (50)

Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

CMAP: a mobile 7th telescope at the CHARA array

Nicholas Scott, Edgar Ligon, Rainer Koehler, Narsireddy Anugu, Christopher Farrington, Gail Schaefer, Douglas Gies, Theo ten Brummelaar, Nils Turner, Craig Woods, Victor Castillo, Steve Golden

Proceedings Volume 13095, 130951U (2024) https://doi.org/10.1117/12.3018516

KEYWORDS: Telescopes, Optical fibers, Spatial resolution, Astronomical interferometry, Observatories, Imaging arrays, Computer aided design, Astronomical telescopes, Video

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Software framework for the Asgard/BIFROST 4-telescope interferometer, a VLTI visitor instrument

Owain Snaith, Stefan Kraus, Narsireddy Anugu, Sebastien Morel

Proceedings Volume 13095, 1309523 (2024) https://doi.org/10.1117/12.3018774

KEYWORDS: Actuators, Cameras, Software frameworks, Engineering, Control software

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

CHARA/SPICA: the new 6T visible combiner for the CHARA array

Denis Mourard, Anthony Meilland, Romina Ibañez Bustos, Juraj Jonak, Philippe Berio, Julien Dejonghe, Daniel Lecron, Frédéric Morand, David Salabert, Fatmé Allouche, Narsireddy Anugu, Sandra Bosio, Laurent Bourgès, Orlagh Creevey, Sébastien Deheuvels, Armando Domiciano de Souza, Nayeem Ebrahimkutty, Doug Gies, Karolina Kubiak, Roxanne Ligi, Robert Ligon, Guillaume Mella, Nicolas Nardetto, Karine Perraut, Christophe Pitiot, Sylvain Rousseau, Mathieu Vrard, Gail Schaefer, Alain Spang, Nils Turner, Markus Wittkowski, Florian Zumbo

Proceedings Volume 13095, 1309503 (2024) https://doi.org/10.1117/12.3019970

KEYWORDS: Equipment, Visibility, Stars, Spectrographs, Calibration, Visible radiation, Optical path differences, Beam combiners, Adaptive optics, Stellar interferometry

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

The Large Interferometer For Exoplanets (LIFE): a space mission for mid-infrared nulling interferometry

Adrian Glauser, Sascha Quanz, Jonah Hansen, Felix Dannert, Michael Ireland, Hendrik Linz, Olivier Absil, Eleonora Alei, Daniel Angerhausen, Thomas Birbacher, Denis Defrère, Andrea Fortier, Philipp Huber, Jens Kammerer, Romain Laugier, Tim Lichtenberg, Lena Noack, Mohanakrishna Ranganathan, Sarah Rugheimer, Vladimir Airapetian, Yann Alibert, Pedro Amado, Marius Anger, Narsireddy Anugu, Max Aragon, David Armstrong, Amedeo Balbi, Olga Balsalobre-Ruza, Deepayan Banik, Mathias Beck, Surendra Bhattarai, Jonas Biren, Jacopo Bottoni, Marrick Braam, Alexis Brandeker, Lars Buchhave, José Caballero, Juan Cabrera, Ludmila Carone, Óscar Carrión-González, Amadeo Castro-González, Kenny Chan, Ligia Coelho, Tereza Constantinou, Nicolas Cowan, William Danchi, Colin Dandumont, Jeanne Davoult, Arjun Dawn, Jean-Pierre de Vera, Pieter de Visser, Caroline Dorn, Juan Duque Lara, Mark Elowitz, Steve Ertel, Yuedong Fang, Simon Felix, Jonathan Fortney, Malcolm Fridlund, Antonio García Muñoz, Cedric Gillmann, Gregor Golabek, John Lee Grenfell, Greta Guidi, Octavio Guilera, Janis Hagelberg, Janina Hansen, Jacob Haqq-Misra, Nathan Hara, Ravit Helled, Konstantin Herbst, Nina Hernitschek, Sasha Hinkley, Takahiro Ito, Satoshi Itoh, Stavro Ivanovski, Markus Janson, Anders Johansen, Hugh Jones, Stephen Kane, Daniel Kitzmann, Andjelka Kovacevic, Stefan Kraus, Oliver Krause, J. M. Diederik Kruijssen, Rolf Kuiper, Alen Kuriakose, Lucas Labadie, Sylvestre Lacour, Antonino Lanza, Laurits Leedjärv, Monika Lendl, Michaela Leung, Jorge Lillo-Box, Jérôme Loicq, Rafael Luque, Suvrath Mahadevan, Liton Majumdar, Fabien Malbet, Franco Mallia, Joice Mathew, Taro Matsuo, Elisabeth Matthews, Victoria Meadows, Bertrand Mennesson, Michael Meyer, Karan Molaverdikhani, Paul Mollière, John Monnier, Ramon Navarro, Benard Nsamba, Kenshiro Oguri, Apurva Oza, Enric Palle, Carina Persson, Joe Pitman, Eva Plávalová, Francisco Pozuelos, Andreas Quirrenbach, Ramses Ramirez, Ansgar Reiners, Ignasi Ribas, Malena Rice, Berke Vow Ricketti, Peter Roelfsema, Amedeo Romagnolo, María Paula Ronco, Martin Schlecker, Jessica Schonhut-Stasik, Edward Schwieterman, Antranik Sefilian, Eugene Serabyn, Chinmay Shahi, Siddhant Sharma, Laura Silva, Swapnil Singh, Evan Sneed, Locke Spencer, Vito Squicciarini, Johannes Staguhn, Karl Stapelfeldt, Keivan Stassun, Motohide Tamura, Benjamin Taysum, Floris van der Tak, Tim van Kempen, Gautam Vasisht, Haiyang Wang, Robin Wordsworth, Mark Wyatt

Proceedings Volume 13095, 130951D (2024) https://doi.org/10.1117/12.3019090

KEYWORDS: Nulling interferometry, Space operations, Planets, Beam combiners, Exoplanets, Stars, Sensors, Polarization, Telescopes, Observational astronomy

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

CHARA array integrated optics testbench (CHARIOT) for on-sky experiments

Alyssa Mayer, Aline Dinkelaker, Kalaga Madhav, Lucas Labadie, Kévin Barjot, Nicholas Scott, Narsireddy Anugu, Aurélien Benoît, Robert Thomson, Robert Harris, Christopher Farrington, Rainer Koehler, Karolina Kubiak, Edgar Ligon, Gail Schaefer

Proceedings Volume 13095, 130951V (2024) https://doi.org/10.1117/12.3019140

KEYWORDS: Beam combiners, Mirrors, Integrated optics, K band, Optical path differences, Nulling interferometry, Telescopes, Equipment, Astrophotonics, Astronomical interferometry, Near infrared, Astronomical instrumentation engineering, Astronomical instrumentation, Femtosecond laser micromachining, Optical benches

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

CHARA/Silmaril instrument software and data reduction pipeline: characterization of the instrument in the lab and on-sky

Narsireddy Anugu, Theo ten brummelaar, Cyprien Lanthermann, Peter Tuthill, Robert Ligon, Gail Schaefer, Douglas Gies, Grace Piroscia, Adam Taras, Gerard van Belle, Makoto Kishimoto, Marc-Antoine Martinod

Proceedings Volume 13095, 130951B (2024) https://doi.org/10.1117/12.3019305

KEYWORDS: Cameras, Telescopes, Sensors, Stars, Data acquisition, Signal to noise ratio, K band, Mirrors, Design, Infrared cameras, Data acquisition boards, Astronomical telescopes

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

Recent technical and scientific highlights from the CHARA array

Douglas Gies, Narsireddy Anugu, Theo ten Brummelaar, Victor Castillo, Christopher Farrington, Becky Flores, Steven Golden, Jeremy Jones, Rainer Köhler, Karolina Kubiak, Cyprien Lanthermann, E. Robert Ligon, Olli Majoinen, Harold McAlister, Jayadev Rajagopal, Stephen Ridgway, Gail Schaefer, Nicholas Scott, Nils Turner, Norman Vargas, Larry Webster, Craig Woods

Proceedings Volume 13095, 1309502 (2024) https://doi.org/10.1117/12.3020589

KEYWORDS: Telescopes, Stars, Binary stars, Beam combiners, Fiber optics, Adaptive optics, Stellar interferometry, Planets, K band, Observatories

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

Integrating a mobile telescope into the CHARA array

Rainer Koehler, Robert Ligon, Matthew Anderson, Narsireddy Anugu, Theo ten Brummelaar, Victor Castillo, Christopher Farrington, Douglas Gies, Steven Golden, Ludovic Grossard, Karolina Kubiak, François Reynaud, Stephen Ridgway, Gail Schaefer, Nic Scott, Laszlo Sturmann, Nils Turner, Craig Woods

Proceedings Volume 13095, 1309504 (2024) https://doi.org/10.1117/12.3020620

KEYWORDS: Telescopes, Equipment, Domes, Design, Control systems, Adaptive optics, Optical fibers, Metrology, Vacuum, Sand

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

Precision interferometry with MIRC-X/MYSTIC for exoplanets

John Monnier, Tyler Gardner, Linling Shuai, Emily Rauscher, Hayley Beltz, Isaac Malsky, Jean-Baptiste le Bouquin, Gail Schaefer, Stefan Kraus, Benjamin Setterholm, Narsireddy Anugu, Theo ten Brummelaar, Sorabh Chhabra, Isabelle Codron, Claire Davies, Jacob Ennis, Mayra Gutierrez, Noura Ibrahim, Aaron Labdon, Cyprien Lanthermann, Daniel Mortimer

Proceedings Volume 13095, 1309516 (2024) https://doi.org/10.1117/12.3020765

KEYWORDS: Exoplanets, Planets, Stars, Jupiter, Phase measurement, Binary stars, Interferometry, Data modeling, Visibility, Telescopes

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Recent and upcoming upgrades for MIRC-X and MYSTIC on the CHARA array

Noura Ibrahim, Mayra Gutierrez, John Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Theo ten Brummelaar, Sorabh Chhabra, Isabelle Codron, Julien Dejonghe, Aaron Labdon, Daniel Lecron, Daniel Mortimer, Denis Mourard, Gail Schaefer, Benjamin Setterholm, Manuela Arnó, Andrea Bianco, Michele Frangiamore, laurent Jocou

Proceedings Volume 13095, 130951W (2024) https://doi.org/10.1117/12.3018413

KEYWORDS: Tunable filters, Equipment, Optical filters, Computer aided design, Beam combiners, Cameras, Switching, Mirrors, Bandpass filters, Telescopes

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

Silmaril: final design and on-sky performance

Cyprien Lanthermann, Theo ten Brummelaar, Peter Tuthill, Narsireddy Anugu, E. Robert Ligon, Gail Schaefer, Douglas Gies, Shashank Dholakia, Adam Taras

Proceedings Volume 13095, 1309505 (2024) https://doi.org/10.1117/12.3012543

KEYWORDS: Sensors, Tunable filters, Design, Cameras, Optical filters, Mirrors, K band, Equipment, Reflection, Beam combiners

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Proceedings Article | 28 August 2024 Presentation

Presentation

Status of Asgard/BIFROST: short-wavelength, high-spectral dispersion interferometry at VLTI

Stefan Kraus, Sorabh Chhabra, Jyotirmay Paul, Owain Snaith, Daniel Lancaster, Daniel Mortimer, Narsireddy Anugu, Michael Ireland, Frantz Martinache, Denis Defrère, Xavier Haubois, Nicolas Schuhler, Antoine Merand, Andrea Bianco, Michele Frangiamore, John Monnier, Marc-Antoine Martinod, Joshua Carter, Isabelle Codron, Yi Lu, Tyler Gardner

Proceedings Volume 13095, 130950E (2024) https://doi.org/10.1117/12.3019876

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Proceedings Article | 28 August 2024 Presentation

Presentation

Commissioning MAPS, the MMT AO exoPlanet characterization System

Katie Morzinski, Manny Montoya, Jenny Patience, Suresh Sivanandam, Craig Kulesa, Amali Vaz, Olivier Durney, Grant West, Andrew Gardner, Dan Vargas, Jess Johnson, Jared Males, Olivier Guyon, Narsireddy Anugu, Ruby Huie, Lauren Perez, Bianca Payan, Lori Harrison, Orlando Trevino, Phil Daly, Cameron Ard, Ken Don, Kim Chapman, Eden McEwen, Joseph Long, Jacob Taylor, Robin Swanson, Shaojie Chen, Adam Butko, Vincent Deo, Jarron Leisenring, Don McCarthy, Terry Jones, Dave Charbonneau, Buell Jannuzi

Proceedings Volume 13097, 130970D (2024) https://doi.org/10.1117/12.3019524

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Proceedings Article | 27 August 2024 Presentation + Paper

Presentation + Paper

Open loop calibration and closed loop non-perturbative estimation of the lateral errors of an adaptive optics system: examples with GRAVITY+ and CHARA experimental data

Anthony Berdeu, Henri Bonnet, Jean-Baptiste Le Bouquin, Johann Kolb, Guillaume Bourdarot, Philippe Berio, Thibaut Paumard, Frank Eisenhauer, Christian Straubmeier, Paulo Garcia, Sebastian Hönig, Florentin Millour, Laura Kreidberg, Denis Defrère, Ferréol Soulez, Denis Mourard, Gail Schaefer, Narsireddy Anugu

Proceedings Volume 13097, 130970T (2024) https://doi.org/10.1117/12.3019843

KEYWORDS: Adaptive optics, Wavefront sensors, Error analysis, Turbulence, Actuators, Calibration, Spatial frequencies

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Proceedings Article | 3 October 2023 Presentation + Paper

Presentation + Paper

The MAPS adaptive secondary mirror: first light, laboratory work, and achievements

Jess Johnson, Amali Vaz, Manny Montoya, Narsireddy Anugu, Cameron Ard, Jared Carlson, Kimberly Chapman, Olivier Durney, Chuck Fellows, Andrew Gardner, Olivier Guyon, Buell Jannuzi, Ron Jones, Craig Kulesa, Joseph Long, Eden McEwen, Jared Males, Emily Mailhot, Jorge Sanchez, Surresh Sivanandam, Robin Swanson, Jacob Taylor, Dan Vargas, Grant West, Jennifer Patience, Katie Morzinski

Proceedings Volume 12693, 126930F (2023) https://doi.org/10.1117/12.2677896

KEYWORDS: Actuators, Mirrors, Telescopes, Adaptive optics, Adaptive mirrors, Power consumption, Matrices, Safety, Engineering

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SPIE Journal Paper | 6 June 2023 Open Access

Open Access

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Jacob Ennis, Laurent Jocou, Nour Ibrahim, Stefan Kraus, Matthew Anderson, Sorabh Chhabra, Isabelle Codron, Christopher Farrington, Becky Flores, Tyler Gardner, Mayra Gutierrez, Cyprien Lanthermann, Olli W. Majoinen, Daniel Mortimer, Gail Schaefer, Nicholas Scott, Theo ten Brummelaar, Norman Vargas

JATIS, Vol. 9, Issue 02, 025006, (June 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025006

KEYWORDS: Equipment, K band, Spatial resolution, Beam combiners, Cameras, Imaging systems, Prisms, Mirrors, Vacuum, Design and modelling

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

Status update for MAPS, the MMT AO exoPlanet characterization System

Manny Montoya, Katie Morzinski, Olivier Durney, Andrew Gardner, Emily Mailhot, Dan Vargas, Amali Vaz, Grant West, Jenny Patience, Buell Jannuzi, Narsireddy Anugu, Jared Carlson, Kim Chapman, Shaojie Chen, Chuck Fellows, Lori Harrison, Terry Jones, Craig Kulesa, Masen Lamb, Siqi Liu, Don McCarthy, Suresh Sivanandam, Jacob Taylor

Proceedings Volume 12185, 121856S (2022) https://doi.org/10.1117/12.2619434

KEYWORDS: Cameras, Adaptive optics, Wavefront sensors, Imaging systems, Mirrors, Exoplanets, Telescopes, Infrared imaging, Calibration, Software development

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

A near-infrared pyramid wavefront sensor for the MMT

Jacob Taylor, Suresh Sivanandam, Narsireddy Anugu, Adam Butko, Shaojie Chen, Olivier Durney, Tim Hardy, Masen Lamb, Manny Montoya, Katie Morzinski, Robin Swanson

Proceedings Volume 12185, 121856R (2022) https://doi.org/10.1117/12.2629419

KEYWORDS: Adaptive optics, Wavefront sensors, Calibration, Sensors, Near infrared, Cameras, Point spread functions, Observatories, Modulation

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Proceedings Article | 29 August 2022 Presentation

Presentation

CHARA MIRC-X and MYSTIC cophasing observations to enable efficient spectro-interferometry and over-resolved object imaging

Narsireddy Anugu, John Monnier, Jean-Baptiste Le Bouquin, Stefan Kraus, Benjamin Setterholm, Theo ten Brummelaar, Gail Schaefer, Cyprien Lanthermann, Jacob Ennis

Proceedings Volume 12183, 121830J (2022) https://doi.org/10.1117/12.2629661

KEYWORDS: Telescopes, Spectral resolution, Spatial resolution, Ranging, Observatories, K band, Vibration control, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

CHARA/SPICA: a six-telescope visible instrument for the CHARA Array

Denis Mourard, Philippe Berio, Cyril Pannetier, Nicolas Nardetto, Fatmé Allouche, Christophe Bailet, Julien Dejonghe, Pierre Geneslay, Estelle Jacqmart, Stéphane Lagarde, Daniel Lecron, Frédéric Morand, Sylvain Rousseau, David Salabert, Alain Spang, Simon Albrecht, Narsireddy Anugu, Laurent Bourgès, Theo ten Brummelaar, Orlagh Creevey, Sebastien Deheuvels, Armando Domiciano de Souza, Doug Gies, Roxanne Ligi, Guillaume Mella, Karine Perraut, Gail Schaefer, Markus Wittkowski

Proceedings Volume 12183, 1218308 (2022) https://doi.org/10.1117/12.2628881

KEYWORDS: Stars, Sensors, Interferometry, Single mode fibers, Spectrographs, Mirrors, Planets, Calibration, Visibility, Databases

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Beam combiner for the Asgard/BIFROST instrument

Daniel Mortimer, Sorabh Chhabra, Stefan Kraus, Narsireddy Anugu, Romain Laugier, Jean-Baptiste Le Bouquin, John Monnier

Proceedings Volume 12183, 121831U (2022) https://doi.org/10.1117/12.2629268

KEYWORDS: Signal to noise ratio, Single mode fibers, Visibility, Photons, Spatial frequencies, Spectral resolution

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Jacob Ennis, Becky Flores, Tyler Gardner, Nour Ibrahim, Laurent Jocou, Stefan Kraus, Cyprien Lanthermann, Gail Schaefer, Theo ten Brummelaar

Proceedings Volume 12183, 121830B (2022) https://doi.org/10.1117/12.2629437

KEYWORDS: Astronomical interferometry, Long baseline optical interferometry, Optical fibers, K band, Cameras, Prisms, Spatial resolution, Visibility, Optical systems, Optical filters

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

A thesis to probe unique exoplanet regimes with micro-arcsecond astrometry and precision closure phases at CHARA and VLTI

Tyler Gardner, John Monnier, Francis Fekel, Jean-Baptiste Le Bouquin, Adam Scovera, Gail Schaefer, Stefan Kraus, Fred Adams, Narsireddy Anugu, Hayley Beltz, Jean-Philippe Berger, Theo ten Brummelaar, Claire Davies, Jacob Ennis, Douglas Gies, Keith J. C. Johnson, Pierre Kervella, Kaitlin Kratter, Aaron Labdon, Cyprien Lanthermann, Isaac Malsky, Emily Rauscher, Johannes Sahlmann, Benjamin Setterholm

Proceedings Volume 12183, 121830Z (2022) https://doi.org/10.1117/12.2630035

KEYWORDS: Planets, Stars, Calibration, Exoplanets, Data modeling, Interferometry, Binary data

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

SPICA-FT: the new fringe tracker of the CHARA array

Cyril Pannetier, Philippe Bério, Denis Mourard, Sylvain Rousseau, Fatmé Allouche, Julien Dejonghe, Christophe Bailet, Daniel Lecron, Frédéric Cassaing, Jean-Baptiste Le Bouquin, Karine Perraut, John Monnier, Narsireddy Anugu, Theo ten Brummelaar

Proceedings Volume 12183, 1218309 (2022) https://doi.org/10.1117/12.2628897

KEYWORDS: Telescopes, Signal to noise ratio, Optical fibers, Spectrographs, Integrated optics, Stars, Phase shifts, Manufacturing, Visibility

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview

Stefan Kraus, Daniel Mortimer, Sorabh Chhabra, Yi Lu, Isabelle Codron, Tyler Gardner, Narsireddy Anugu, John Monnier, Jean-Baptiste Le Bouquin, Michael Ireland, Frantz Martinache, Denis Defrère, Marc-Antoine Martinod

Proceedings Volume 12183, 121831S (2022) https://doi.org/10.1117/12.2627973

KEYWORDS: Stars, Spectral resolution, Interferometry, Exoplanets, Astronomical interferometry, Infrared detectors, Astronomical spectroscopy

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Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

The CHARA Michelson Array Pathfinder

R. Ligon, M. Anderson, N. Anugu, T. ten Brummelaar, C. Farrington, D. Gies, S. Golden, R. Koehler, F. Reynaud, S. Ridgway, G. Schaefer, N. Scott, L. Sturmann, N. Turner, C. Woods

Proceedings Volume 12183, 121832N (2022) https://doi.org/10.1117/12.2629530

KEYWORDS: Optical fibers, Telescopes, Optical instrument design, Adaptive optics

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Recent technical and scientific highlights from the CHARA Array

Douglas Gies, Matthew Anderson, Narsireddy Anugu, Theo ten Brummelaar, Victor Castillo, Christopher Farrington, Steven Golden, Jeremy Jones, Robert Klement, Rainer Köhler, Cyprien Lanthermann, E. Robert Ligon, Olli Majoinen, Harold McAlister, Stephen Ridgway, Gail Schaefer, Nicholas Scott, Nils Turner, Norman Vargas, Larry Webster, Craig Woods

Proceedings Volume 12183, 1218303 (2022) https://doi.org/10.1117/12.2629048

KEYWORDS: Stars, Telescopes, Adaptive optics, Interferometry, K band, Planets, Spectroscopy, Exoplanets, Control systems, Spatial resolution

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Proceedings Article | 13 December 2020 Paper

Paper

CHARA array adaptive optics: complex operational software and performance

Narsireddy Anugu, Theo ten Brummelaar, Nils Turner, Matthew Anderson, Jean-Baptiste Le Bouquin, Judit Sturmann, Laszlo Sturmann, Chris Farrington, Norm Vargas, Olli Majoinen, Michael Ireland, John Monnier, Denis Mourard, Gail Schaefer, Douglas Gies, Stephen Ridgway, Stefan Kraus, Cyril Petit, Michel Tallon, Caroline Lim, Philippe Berio

Proceedings Volume 11446, 1144622 (2020) https://doi.org/10.1117/12.2561560

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Optical arrays, Cameras, Deformable mirrors, Actuators, Space telescopes, Interferometers, Binary data

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Overview and prospects of the LBTI beyond the completed HOSTS survey

Steve Ertel, Philip Hinz, Jordan Stone, Amali Vaz, Oscar Montoya, Grant West, Olivier Durney, Paul Grenz, Eckhart Spalding, Jarron Leisenring, Kevin Wagner, Narsireddy Anugu, Jennifer Power, Erin Maier, Denis Defrère, William Hoffmann, Saavidra Perera, Samantha Brown, Andrew Skemer, Bertrand Mennesson, Grant Kennedy, Elwood Downey, John Hill, Enrico Pinna, Alfio Puglisi, Fabio Rossi

Proceedings Volume 11446, 1144607 (2020) https://doi.org/10.1117/12.2561849

KEYWORDS: Mirrors, Interferometry, Adaptive optics, Telescopes, Interferometers, Cryogenics, Infrared imaging, Thermography, Infrared radiation, Nulling interferometry

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Laboratory testing and calibration of the upgraded MMT adaptive secondary mirror

Amali Vaz, Katie Morzinski, Manny Montoya, Chuck Fellows, John Ford, Andrew Gardner, Olivier Durney, Grant West, Lori Harrison, Frank Gacon, Elwood Downey, Jared Carlson, Emily Mailhot, Narsireddy Anugu, Buell Jannuzi, Phil Hinz

Proceedings Volume 11448, 114485L (2020) https://doi.org/10.1117/12.2576352

KEYWORDS: Mirrors, Calibration, Actuators, Exoplanets, Electronics, Adaptive optics, Wavefront sensors, Observatories, Liquids, Imaging systems

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Proceedings Article | 13 December 2020 Poster

Poster

High-spectral resolution interferometry at 1 micrometer with VLTI/BIFROST: science drivers and instrument design

Stefan Kraus, Michael Ireland, Jean-Baptiste Le Bouquin, John Monnier, Barnaby Norris, Frantz Martinache, Denis Defrère, Narsireddy Anugu

Proceedings Volume 11446, 114462H (2020) https://doi.org/10.1117/12.2562181

KEYWORDS: Spectral resolution, Interferometry, Stars, Exoplanets, Planetary systems, Diagnostics, Telescopes, Spectroscopes, James Webb Space Telescope, Adaptive optics

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Development and status of MAPS, the MMT AO exoPlanet characterization system

Katie Morzinski, Manny Montoya, Chuck Fellows, Olivier Durney, John Ford, Grant West, Andrew Gardner, Amali Vaz, Narsireddy Anugu, Emily Mailhot, Jared Carlson, Lori Harrison, Frank Gacon, Elwood Downey, Phil Hinz, Terry Jones, Jenny Patience, Suresh Sivanandam, Shaojie Chen, Masen Lamb, Adam Butko, Siqi Liu, Tim Hardy, Buell Jannuzi

Proceedings Volume 11448, 114481L (2020) https://doi.org/10.1117/12.2563178

KEYWORDS: Adaptive optics, Exoplanets, Electronics, Wavefront sensors, Cameras, Polarization, Actuators, Stars, Mirrors, Near infrared spectroscopy

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

VLTI images of circumbinary disks around evolved stars

Jacques Kluska, Rik Claes, Akke Corporaal, Hans Van Winckel, Javier Alcolea, Narsireddy Anugu, Jean-Philippe Berger, Dylan Bollen, Valentin Bujarrabal, Robert Izzard, Devika Kamath, Stefan Kraus, Jean-Baptiste Le Bouquin, Michiel Min, John Monnier, Hans Olofsson

Proceedings Volume 11446, 114460D (2020) https://doi.org/10.1117/12.2561480

KEYWORDS: Stars, Image processing, Interferometry, Image restoration, Infrared imaging, Infrared radiation, Imaging systems, Spatial resolution, Thermal modeling, Binary data

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, P. Berio, F. Cassaing, F. Allouche, N. Anugu, C. Bailet, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, J. Monnier, N. Nardetto, F. Patru, K. Perraut, R. Petrov, S. Rousseau, P. Stee, J. Sturmann, L. Sturmann

Proceedings Volume 11446, 114460T (2020) https://doi.org/10.1117/12.2560625

KEYWORDS: Glasses, Stars, Fourier transforms, Optical tracking, Photons, Integrated optics, Coherence (optics), Atmospheric optics, Planets, Interferometry

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

CHARA/MIRC-X: a high-sensitive six telescope interferometric imager concept, commissioning and early science

Narsireddy Anugu, Jean-Baptiste Le Bouquin, John Monnier, Stefan Kraus, Gail Schaefer, Benjamin Setterholm, Claire Davies, Tyler Gardner, Aaron Labdon, Cyprien Lanthermann, Jacob Ennis, Theo ten Brummelaar, Judit Sturmann, Matt Anderson, Chris Farrington, Norm Vargas, Olli Majoinen

Proceedings Volume 11446, 114460N (2020) https://doi.org/10.1117/12.2561579

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

MIRC-X polarinterferometry at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Aaron Labdon, Jacob Ennis, Keith J. Johnson, Stefan Kraus, Theo ten Brummelaar

Proceedings Volume 11446, 114460R (2020) https://doi.org/10.1117/12.2562407

KEYWORDS: Prisms, Stars, Spectral resolution, Polarimetry, Sensors, Light scattering, Beryllium

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Design and development of a high-speed visible pyramid wavefront sensor for the MMT AO system

Narsireddy Anugu, Olivier Durney, Katie Morzinski, Phil Hinz, Suresh Sivanandam, Jared Males, Andrew Gardner, Chuck Fellows, Manny Montoya, Grant West, Amali Vaz, Emily Mailhot, Jared Carlson, Shaojie Chen, Masen Lamb, Adam Butko, Elwood Downey, Jacob Tyler, Buell Jannuzi

Proceedings Volume 11448, 114485J (2020) https://doi.org/10.1117/12.2576353

KEYWORDS: Cameras, Wavefront sensors, Adaptive optics, Modulation, Mirrors, Exoplanets, Interfaces, Target acquisition, Stars

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

A new frontier for J-band interferometry: dual-band NIR interferometry with MIRC-X

Aaron Labdon, John Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Benjamin Setterholm, Narsireddy Anugu, Theo ten Brummelaar, Cyprien Lanthermann, Claire Davies, Jacob Ennis, Tyler Gardner, Gail Schaefer, Laszlo Sturmann, Judit Sturmann

Proceedings Volume 11446, 114460H (2020) https://doi.org/10.1117/12.2561371

KEYWORDS: Interferometry, Near infrared, Birefringence, Atmospheric corrections, Atmospheric modeling, Telescopes, Instrument modeling

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Proceedings Article | 21 August 2020 Paper

Paper

Betelgeuse scope: single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring

Narsireddy Anugu, Katie Morzinski, Josh Eisner, Ewan Douglas, Dan Marrone, Steve Ertel, Sebastiaan Haffert, Oscar Montoya, Jordan Stone, Stefan Kraus, John Monnier, Jean-Baptiste Lebouquin, Jean-Philippe Berger, Julien Woillez, Miguel Montargès

Proceedings Volume 11490, 114900X (2020) https://doi.org/10.1117/12.2568900

KEYWORDS: Telescopes, Convection, Stars, Interferometers, Visibility, Interferometry, Optical telescopes, Single mode fibers, Spatial resolution

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Proceedings Article | 16 July 2018 Presentation + Paper

Presentation + Paper

Astronomical interferometry with near-IR e-APD at CHARA: characterization, optimization and on-sky operation

Cyprien Lanthermann, Jean-Baptiste Le Bouquin, Narsireddy Anugu, John Monnier, Stefan Kraus

Proceedings Volume 10709, 1070914 (2018) https://doi.org/10.1117/12.2312944

KEYWORDS: Stellar interferometry, Near infrared, Cameras, Data modeling, Signal to noise ratio, Sensors, Calibration, Nondestructive evaluation, Astronomy

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Proceedings Article | 9 July 2018 Paper

Paper

MYSTIC: Michigan Young STar Imager at CHARA

John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Stefan Kraus, Benjamin Setterholm, Jacob Ennis, Cyprien Lanthermann, Laurent Jocou, Theo ten Brummelaar

Proceedings Volume 10701, 1070122 (2018) https://doi.org/10.1117/12.2312762

KEYWORDS: Optical fibers, Cameras, Spectrographs, K band, Integrated optics, Stars, Imaging systems, Spectral resolution, Optical interferometry, Coherent beam combination

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

MIRC-X/CHARA: sensitivity improvements with an ultra-low noise SAPHIRA detector

Narsireddy Anugu, Jean-Baptiste Le Bouquin, John Monnier, Stefan Kraus, Jacob Ennis, Cyprien Lanthermann, Benjamin Setterholm, Claire Davies, Theo ten Brummelaar, Mariam Haidar, Veronika Dubravec, Scott Peters

Proceedings Volume 10701, 1070124 (2018) https://doi.org/10.1117/12.2313036

KEYWORDS: Cameras, Signal to noise ratio, Sensors, Data acquisition, Polarization, Optical fibers, Visibility, Imaging systems, Photons, Telescopes

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The MIRC-X 6-telescope imager: key science drivers, instrument design and operation

Stefan Kraus, John Monnier, Narsireddy Anugu, Jean-Baptiste Le Bouquin, Claire Davies, Jacob Ennis, Aaron Labdon, Cyprien Lanthermann, Benjamin Setterholm, Theo ten Brummelaar

Proceedings Volume 10701, 1070123 (2018) https://doi.org/10.1117/12.2311706

KEYWORDS: Sensors, Cameras, Visibility, Stars, Imaging systems, Polarization, Interferometry, Optical fibers, Signal to noise ratio, Calibration

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Proceedings Article | 4 August 2016 Paper

Paper

GRAVITY acquisition camera: characterization results

Narsireddy Anugu, Paulo Garcia, Antonio Amorim, Erich Wiezorrek, Ekkehard Wieprecht, Frank Eisenhauer, Thomas Ott, Oliver Pfuhl, Paulo Gordo, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karine Perraut

Proceedings Volume 9907, 990727 (2016) https://doi.org/10.1117/12.2233315

KEYWORDS: Stars, Cameras, Telescopes, Optical tracking, Imaging systems, Sensors, Electroluminescent displays, Image sensors, Actuators, Mirrors

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Proceedings Article | 24 July 2014 Paper

Paper

The GRAVITY/VLTI acquisition camera software

Narsireddy Anugu, Paulo J. Garcia, Ekkehard Wieprecht, Antonio Amorim, Leonard Burtscher, Thomas Ott, Paulo Gordo, Frank Eisenhauer, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karine Perraut

Proceedings Volume 9146, 91462C (2014) https://doi.org/10.1117/12.2055831

KEYWORDS: Imaging systems, Cameras, Telescopes, Sensors, Image sensors, Refraction, Stars, Wavefronts, Device simulation, Databases

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Proceedings Article | 24 July 2014 Open Access

Open Access

Paper

The GRAVITY instrument software/hardware related aspects

Thomas Ott, Ekkehard Wieprecht, Leonard Burtscher, Yitping Kok, Senol Yazici, Narsireddy Anugu, Roderick Dembet, Pierre Fedou, Sylvestre Lacour, Jürgen Ott, Frank Eisenhauer, Nicolas Blind, Reinhard Genzel, Stefan Gillessen, Oliver Hans, Marcus Haug, Frank Haussmann, Stefan Huber, Annemieke Janssen, Stefan Kellner, Magdalena Lippa, Oliver Pfuhl, Eckhard Sturm, Johannes Weber, Antonio Amorim, Wolfgang Brandner, Karine Rousselet-Perraut, Guy Perrin, Christian Straubmeier, Markus Schöller, Roberto Abuter

Proceedings Volume 9146, 91462A (2014) https://doi.org/10.1117/12.2055927

KEYWORDS: Sensors, Lamps, Camera shutters, Control systems, Analog electronics, Metrology, Detection and tracking algorithms, Optical fibers, Fiber lasers, Laser metrology

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Proceedings Article | 24 July 2014 Open Access

Open Access

Paper

The GRAVITY instrument software/high-level software

Leonard Burtscher, Ekkehard Wieprecht, Thomas Ott, Yitping Kok, Senol Yazici, Narsireddy Anugu, Roderick Dembet, Pierre Fedou, Sylvestre Lacour, Jürgen Ott, Thibaut Paumard, Vincent Lapeyrere, Pierre Kervella, Roberto Abuter, Eszter Pozna, Frank Eisenhauer, Nicolas Blind, Reinhard Genzel, Stefan Gillessen, Oliver Hans, Marcus Haug, Frank Haussmann, Stefan Kellner, Magdalena Lippa, Oliver Pfuhl, Eckhard Sturm, Johannes Weber, Antonio Amorim, Wolfgang Brandner, Karine Rousselet-Perraut, Guy Perrin, Christian Straubmeier, Markus Schöller

Proceedings Volume 9146, 91462B (2014) https://doi.org/10.1117/12.2055928

KEYWORDS: Sensors, Process control, Control systems, Cameras, Telescopes, Signal detection, Data acquisition, Computing systems, Interferometers, Interfaces

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Proceedings Article | 24 July 2014 Paper

Paper

Integration and testing of the GRAVITY infrared camera for multiple telescope optical beam analysis

Paulo Gordo, Antonio Amorim, Jorge Abreu, Frank Eisenhauer, Narsireddy Anugu, Paulo Garcia, Oliver Pfuhl, Marcus Haug, Eckhard Sturm, Ekkehard Wieprecht, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karine Perraut, M. Duarte Naia, M. Guimarães

Proceedings Volume 9146, 91461V (2014) https://doi.org/10.1117/12.2056572

KEYWORDS: Cameras, Telescopes, Beam analyzers, Sensors, Optical alignment, Optics manufacturing, Mirrors, Imaging systems, Silica, Beam splitters

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Proceedings Article | 21 July 2014 Paper

Paper

Near-infrared aberration tracking using a correlation algorithm on the Galactic Center

Narsireddy Anugu, Paulo Garcia, Antonio Amorim, Paulo Gordo, Frank Eisenhauer, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karine Perraut

Proceedings Volume 9148, 91485B (2014) https://doi.org/10.1117/12.2055869

KEYWORDS: Sensors, Wavefronts, Image sensors, Wavefront sensors, Telescopes, Reconstruction algorithms, Detection and tracking algorithms, Electroluminescent displays, Adaptive optics, Wavefront aberrations

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Proceedings Article | 12 September 2012 Paper

Paper

The final design of the GRAVITY acquisition camera and associated VLTI beam monitoring strategy

Antonio Amorim, Jorge Lima, Narsireddy Anugu, Frank Eisenhauer, Alexander Graeter, Marcus Haug, Thomas Ott, Oliver Pfuhl, Markus Thiel, Ekkehard Wieprecht, Pedro Carvas, Paulo Garcia, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karine Perraut

Proceedings Volume 8445, 844534 (2012) https://doi.org/10.1117/12.925993

KEYWORDS: Sensors, Cameras, Imaging systems, Telescopes, Lenses, Beam analyzers, Metrology, Semiconductor lasers, Mirrors, Image sensors

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Showing 5 of 50 publications

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