Dr. André R. Martel Profile

Dr. André R. Martel

at Space Telescope Science Institute

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 14 December 2020 Presentation + Paper

Presentation + Paper

The James Webb Space Telescope aperture masking interferometer

A. Soulain, A. Sivaramakrishnan, P. Tuthill, D. Thatte, K. Volk, R. Cooper, L. Albert, É. Artigau, N. Cook, R. Doyon, D. Johnstone, D. Lafrenière, A. Martel

Proceedings Volume 11446, 1144611 (2020) https://doi.org/10.1117/12.2560804

KEYWORDS: James Webb Space Telescope, Interferometers, Infrared telescopes, Observatories, Stars, Infrared radiation, Mirrors, Observational astronomy, Imaging systems, Spectrographs

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Presentation

Poster + Presentation

Commissioning the scientific instruments of the James Webb Space Telescope

Randy Kimble, Scott Friedman, Catarina Alves de Oliveira, Stephan Birkmann, Torsten Boeker, Martha Boyer, René Doyon, Alistair Glasse, Sarah Kendrew, André Martel, Edmund Nelan, Alberto Noriega-Crespo, Charles Proffitt, Corbett Smith, John Stansberry, Begoña Vila, Christopher Willott

Proceedings Volume 11443, 114434G (2020) https://doi.org/10.1117/12.2561819

KEYWORDS: James Webb Space Telescope, Spectrographs, Calibration, Mid-IR, Cameras, Imaging systems, Sensors, Coronagraphy, Phase interferometry, Interferometry

Read Abstract +

Proceedings Article | 29 August 2017 Paper

Paper

Pre-launch calibration of the advanced camera for surveys

André Martel

Proceedings Volume 10313, 103130O (2017) https://doi.org/10.1117/12.2283820

Read Abstract +

Proceedings Article | 27 September 2016 Paper

Paper

Cryogenic optical test planning using the Optical Telescope Element Simulator with the James Webb Space Telescope Integrated Science Instrument Module

Timothy Reichard, Nicholas Bond, Bradford Greeley, Eliot Malumuth, Marcio Melendez, Ron Shiri, Catarina Alves de Oliveira, Scott Antonille, Stephan Birkmann, Clinton Davis, William Dixon, André Martel, Cherie Miskey, Raymond Ohl, Derek Sabatke, Joseph Sullivan

Proceedings Volume 9951, 99510N (2016) https://doi.org/10.1117/12.2237006

KEYWORDS: James Webb Space Telescope, Cryogenics, Space telescopes, Optical testing, Optical components, Sensors, Signal attenuation, Lamps, Tungsten, Calibration

Read Abstract +

Proceedings Article | 29 July 2016 Paper

Paper

Cryo-vacuum testing of the JWST Integrated Science Instrument Module

Randy Kimble, M. Begoña Vila, Julie Van Campen, Stephan Birkmann, Brian Comber, Curtis Fatig, Alistair C. Glasse, Stuart Glazer, Douglas Kelly, Steven Mann, André Martel, Kevin Novo-Gradac, Ray Ohl, Konstantin Penanen, Scott Rohrbach, Joseph Sullivan, Dean Zak, Julia Zhou

Proceedings Volume 9904, 990408 (2016) https://doi.org/10.1117/12.2231554

KEYWORDS: James Webb Space Telescope, Space telescopes, Calibration, Observatories, Silicon, Sensors, Telescopes, Electronics, Mirrors, Optical alignment

Read Abstract +

Proceedings Article | 16 September 2015 Paper

Paper

Astrometric accuracy of aperture making interferometry with JWST-NIRISS

Deepashri Thatte, Alexandra Greenbaum, André Martel, Anand Sivaramakrishnan, Étienne Artigau

Proceedings Volume 9605, 96052F (2015) https://doi.org/10.1117/12.2188543

KEYWORDS: Point spread functions, Sensors, Interferometry, Planets, James Webb Space Telescope, Exoplanets, Space telescopes, Astronomy, Aerospace engineering, Data modeling

Read Abstract +

Proceedings Article | 28 August 2014 Paper

Paper

NIRISS aperture masking interferometry: an overview of science opportunities

Étienne Artigau, Anand Sivaramakrishnan, Alexandra Greenbaum, René Doyon, Paul Goudfrooij, Alex Fullerton, David Lafrenière, Kevin Volk, Loïc Albert, André Martel, K. E. Saavik Ford, Barry McKernan

Proceedings Volume 9143, 914340 (2014) https://doi.org/10.1117/12.2055191

KEYWORDS: Stars, Planets, James Webb Space Telescope, Optical filters, Gemini Planet Imager, Point spread functions, Interferometry, Exoplanets, Galactic astronomy, Bandpass filters

Read Abstract +

Proceedings Article | 2 August 2014 Paper

Paper

Analyzing the first JWST-NIRISS NRM test data

Alexandra Greenbaum, André Martel, Anand Sivaramakrishnan, Kevin Volk, Laurent Pueyo, Étienne Artigau, Peter Tuthill

Proceedings Volume 9143, 91434M (2014) https://doi.org/10.1117/12.2056346

KEYWORDS: Point spread functions, Data modeling, Sensors, James Webb Space Telescope, Capacitance, Infrared telescopes, Visibility, Phase measurement, Interferometry, Space telescopes

Read Abstract +

Proceedings Article | 21 September 2012 Paper

Paper

Non-redundant Aperture Masking Interferometry (AMI) and segment phasing with JWST-NIRISS

Anand Sivaramakrishnan, David Lafrenière, K. E. Saavik Ford, Barry McKernan, Anthony Cheetham, Alexandra Greenbaum, Peter Tuthill, James Lloyd, Michael Ireland, René Doyon, Mathilde Beaulieu, André Martel, Anton Koekemoer, Frantz Martinache, Peter Teuben

Proceedings Volume 8442, 84422S (2012) https://doi.org/10.1117/12.925565

KEYWORDS: James Webb Space Telescope, Visibility, Interferometry, Space telescopes, Sensors, Calibration, Telescopes, Mirrors, Wavefronts, Image segmentation

Read Abstract +

The Aperture Masked Interferometry (AMI) mode on JWST-NIRISS is implemented as a 7-hole, 15% throughput, non-redundant mask (NRM) that operates with 5-8% bandwidth filters at 3.8, 4.3, and 4.8 microns. We present refined estimates of AMI's expected point-source contrast, using realizations of noise matched to JWST pointing requirements, NIRISS detector noise, and Rev-V JWST wavefront error models for the telescope and instrument. We describe our point-source binary data reduction algorithm, which we use as a standardized method to compare different observational strategies. For a 7.5 magnitude star we report a 10-a detection at between 8.7 and 9.2 magnitudes of contrast between 100 mas to 400 mas respectively, using closure phases and squared visibilities in the absence of bad pixels, but with various other noise sources. With 3% of the pixels unusable, the expected contrast drops by about 0.5 magnitudes. AMI should be able to reach targets as bright as M=5. There will be significant overlap between Gemini-GPI and ESO-SPHERE targets and AMI's search space, and a complementarity with NIRCam's coronagraph. We also illustrate synthesis imaging with AMI, demonstrating an imaging dynamic range of 25 at 100 mas scales. We tailor existing radio interferometric methods to retrieve a faint bar across a bright nucleus, and explain the similarities to synthesis imaging at radio wavelengths. Modest contrast observations of dusty accretion flows around AGNs will be feasible for NIRISS AMI. We show our early results of image-plane deconvolution as well. Finally, we report progress on an NRM-inspired approach to mitigate mission-level risk associated with JWST's specialized wavefront sensing hardware. By combining narrow band and medium band Nyquist-sampled images taken with a science camera we can sense JWST primary mirror segment tip-tilt to lOmas, and piston to a few nm. We can sense inter-segment piston errors of up to 5 coherence lengths of the broadest bandpass filter used ( 250-500 0m depending on the filters). Our approach scales well with an increasing number of segments, which makes it relevant for future segmented-primary space missions.

Proceedings Article | 21 September 2012 Paper

Paper

The JWST Fine Guidance Sensor (FGS) and Near-Infrared Imager and Slitless Spectrograph (NIRISS)

René Doyon, John Hutchings, Mathilde Beaulieu, Loic Albert, David Lafrenière, Chris Willott, Driss Touahri, Neil Rowlands, Micheal Maszkiewicz, Alex Fullerton, Kevin Volk, André Martel, Pierre Chayer, Anand Sivaramakrishnan, Roberto Abraham, Laura Ferrarese, Ray Jayawardhana, Doug Johnstone, Michael Meyer, Judith Pipher, Marcin Sawicki

Proceedings Volume 8442, 84422R (2012) https://doi.org/10.1117/12.926578

KEYWORDS: Sensors, Spectroscopy, Imaging spectroscopy, Stars, Exoplanets, James Webb Space Telescope, Atmospheric modeling, Imaging systems, Point spread functions, Spectrographs

Read Abstract +

Proceedings Article | 5 August 2010 Paper

Paper

The JWST tunable filter imager (TFI)

R. Doyon, J. Hutchings, N. Rowlands, C. Evans, E. Greenberg, C. Haley, A. Scott, D. Touahri, M. Beaulieu, D. Lafrenière, R. Abraham, E. Barton, P. Chayer, L. Ferrarese, A. Fullerton, R. Jayawardhana, D. Johnstone, A. Martel, A. W. M. R. Meyer, J. Pipher, K. Saad, M. Sawicki, A. Sivaramakrishnan, K. Volk

Proceedings Volume 7731, 77310F (2010) https://doi.org/10.1117/12.857382

KEYWORDS: Fabry–Perot interferometers, James Webb Space Telescope, Coronagraphy, Coating, Sensors, Exoplanets, Imaging systems, Tunable filters, Spectral resolution, Space telescopes

Read Abstract +

Proceedings Article | 17 September 2009 Paper

Paper

Wide Field Camera 3 CCD quantum efficiency hysteresis: characterization and mitigation

Nicholas Collins, Nicholas Boehm, Gregory Delo, Roger Foltz, Robert Hill, Emily Kan, Randy Kimble, Eliot Malumuth, Robert Rosenberry, Augustyn Waczynski, Yiting Wen, Sylvia Baggett, Howard Bushouse, Susana Deustua, Jessica Kim-Quijano, John MacKenty, Andre Martel, Elena Sabbi

Proceedings Volume 7439, 74390B (2009) https://doi.org/10.1117/12.828439

KEYWORDS: Sensors, Signal detection, Charge-coupled devices, CCD cameras, Quantum efficiency, Cameras, Near ultraviolet, Lamps, Visible radiation, Calibration

Read Abstract +

Proceedings Article | 22 July 2008 Paper

Paper

The Wide-Field Camera 3 detectors

S. Baggett, R. Hill, R. Kimble, J. MacKenty, A. Waczynski, H. Bushouse, N. Boehm, H. Bond, T. Brown, N. Collins, G. Delo, L. Dressel, R. Foltz, G. Hartig, B. Hilbert, E. Kan, J. Kim-Quijano, E. Malumuth, A. Martel, P. McCullough, L. Petro, M. Robberto, Y. Wen

Proceedings Volume 7021, 70211Q (2008) https://doi.org/10.1117/12.790056

KEYWORDS: Sensors, Quantum efficiency, Charge-coupled devices, Cameras, Staring arrays, Infrared imaging, Infrared detectors, Amplifiers, Thermography, Optical filters

Read Abstract +

Proceedings Article | 12 July 2008 Paper

Paper

Wide field camera 3 ground testing and calibration

H. Bushouse, S. Baggett, H. Bond, T. Brown, S. Deustua, G. Hartig, B. Hilbert, R. Hill, J. Kim-Quijano, R. Kimble, J. MacKenty, A. Martel, P. McCullough, L. Petro, S. Rinehart, M. Robberto

Proceedings Volume 7010, 70104P (2008) https://doi.org/10.1117/12.789569

KEYWORDS: Staring arrays, Sensors, Calibration, Infrared imaging, Charge-coupled devices, Cameras, Thermography, Infrared sensors, Optical filters, Imaging systems

Read Abstract +

Proceedings Article | 12 January 2004 Paper

Paper

Inflight performance of the Advanced Camera for Surveys

Mark Clampin, Marco Sirianni, George Hartig, Holland Ford, Garth Illingworth, William Burmester, Andre Martel, Adam Riess, Ronald Schrein, Pamela Sullivan

Proceedings Volume 5167, (2004) https://doi.org/10.1117/12.512509

KEYWORDS: Charge-coupled devices, Sensors, Cameras, CCD image sensors, Point spread functions, Mirrors, Optical filters, Imaging systems, Coating, Reflectivity

Read Abstract +

Proceedings Article | 24 February 2003 Paper

Paper

On-orbit alignment and imaging performance of the HST Advanced Camera for Surveys

George Hartig, John Krist, Andre Martel, Holland Ford, Garth Illingworth

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.459787

KEYWORDS: Sensors, Mirrors, Monochromatic aberrations, Charge-coupled devices, Image quality, Stars, Cameras, Optical alignment, CCD image sensors, Phase retrieval

Read Abstract +

Proceedings Article | 24 February 2003 Paper

Paper

Characterization and on-orbit performance of the Advanced Camera for Surveys CCDs

Marco Sirianni, Mark Clampin, George Hartig, Holland Ford, Garth Illingworth, Vic Argabright, Bill Burmester, Guido De Marchi, William Koldewyn, Andre Martel, Max Mutchler, Adam Riess, Ronald Schrein, Pamela Sullivan

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.460032

KEYWORDS: Charge-coupled devices, Amplifiers, Cameras, Sensors, CCD cameras, Annealing, Calibration, CCD image sensors, Quantum efficiency, Sensor performance

Read Abstract +

Proceedings Article | 24 February 2003 Paper

Paper

On-orbit performance of the ACS solar blind channel

Hien Tran, Gerhardt Meurer, Holland Ford, Andre Martel, Marco Sirianni, Ralph Bohlin, Mark Clampin, Colin Cox, Guido de Marchi, George Hartig, Randy Kimble, Vic Argabright

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.474053

KEYWORDS: Sensors, Ultraviolet radiation, Stars, Point spread functions, Contamination, Calibration, Microchannel plates, Image quality, Cameras, Image filtering

Read Abstract +

Proceedings Article | 24 February 2003 Paper

Paper

Overview of the Advanced Camera for Surveys on-orbit performance

Holland Ford, Mark Clampin, George Hartig, Garth Illingworth, Marco Sirianni, Andre Martel, Gerhardt Meurer, William McCann, Pamela Sullivan, Frank Bartko, Narcisco Benitez, John Blakeslee, Rychard Bouwens, Tom Broadhurst, Robert Brown, Christopher Burrows, Douglas Campbell, Edward Cheng, Paul Feldman, Marijn Franx, David Golimowski, Caryl Gronwall, Randy Kimble, John Krist, Michael Lesser, Dan Magee, George Miley, Marc Postman, Marc Rafal, Piero Rosati, William Sparks, Hien Tran, Zlatan Tsvetanov, Paul Volmer, Richard White, Robert Woodruff

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.460040

KEYWORDS: Stars, Coronagraphy, Cameras, Calibration, Charge-coupled devices, Point spread functions, Galactic astronomy, Space telescopes, Optical filters, Spectral resolution

Read Abstract +

Showing 5 of 19 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement