Dr. Anand Sivaramakrishnan
AURA Scientist at Space Telescope Science Institute
SPIE Involvement:
Author | Instructor
Publications (83)

Proceedings Article | 6 October 2023 Presentation
Proceedings Volume 12680, 126801F (2023) https://doi.org/10.1117/12.2677790
KEYWORDS: Wavefront sensors, Telescopes, Imaging systems, Coronagraphy, Deformable mirrors, Stars, Monochromatic aberrations, Image segmentation, Wavefront aberrations, Observatories

Proceedings Article | 5 October 2023 Poster + Paper
Proceedings Volume 12680, 126801Y (2023) https://doi.org/10.1117/12.2677675
KEYWORDS: Prisms, Gemini Planet Imager, Iterated function systems, Optical filters, Spectral resolution, Optical alignment, Gemini Observatory, Design and modelling, Wavefront sensors

Proceedings Article | 27 August 2022 Poster + Presentation + Paper
Julien Girard, Jarron Leisenring, Jens Kammerer, Mario Gennaro, Marcia Rieke, John Stansberry, Armin Rest, Eiichi Egami, Ben Sunnquist, Martha Boyer, Alicia Canipe, Matteo Correnti, Bryan Hilbert, Marshall Perrin, Laurent Pueyo, Remi Soummer, Marsha Allen, Howard Bushouse, Jonathan Aguilar, Brian Brooks, Dan Coe, Audrey DiFelice, David Golimowski, George Hartig, Dean Hines, Anton Koekemoer, Bryony Nickson, Nikolay Nikolov, Vera Kozhurina-Platais, Nor Pirzkal, Massimo Robberto, Anand Sivaramakrishnan, Sangmo Tony Sohn, Randal Telfer, Chi Rai Wu, Thomas Beatty, Michael Florian, Kevin Hainline, Doug Kelly, Karl Misselt, Everett Schlawin, Fengwu Sun, Christina Williams, Christopher Willmer, Christopher Stark, Marie Ygouf, Aarynn Carter, Charles Beichman, Thomas Greene, Thomas Roellig, John Krist, Jéa Adams Redai, Jason Wang, Charles Clark, Dan Lewis, Malcolm Ferry
Proceedings Volume 12180, 121803Q (2022) https://doi.org/10.1117/12.2629636
KEYWORDS: Coronagraphy, Stars, James Webb Space Telescope, Point spread functions, Distortion, Telescopes, Signal to noise ratio, Calibration, Target acquisition, Exoplanets, Astronomical imaging, Near infrared, Direct methods, Astronomical instrumentation

Proceedings Article | 27 August 2022 Presentation + Paper
Sasha Hinkley, Aarynn Carter, Shrishmoy Ray, Beth Biller, Andrew Skemer, Elodie Choquet, Maxwell Millar-Blanchaer, Stephanie Sallum, Brittany Miles, Niall Whiteford, Polychronis Patapis, Marshall Perrin, Laurent Pueyo, Karl Stapelfeldt, Jason Wang, Kimberly Ward-Duong, Julien Girard, Dean Hines, Jens Kammerer, Jarron Leisenring, Yifan Zhou, Michael Meyer, Michael Liu, Mickael Bonnefoy, Simon Petrus, Mariangela Bonavita, Gael Chauvin, Christine Chen, Thayne Currie, Kielan K. Hoch, Cecilia Lazzoni, Elisabeth Matthews, Michael McElwain, Isabel Rebollido, Emily Rickman, Glenn Schneider, Anand Sivaramakrishnan, Jordan Stone
Proceedings Volume 12180, 121800S (2022) https://doi.org/10.1117/12.2629919
KEYWORDS: James Webb Space Telescope, Coronagraphy, Planets, Exoplanets, Imaging systems, Astronomy, Imaging spectroscopy, Spectroscopy, Stars, Calibration

Proceedings Article | 27 August 2022 Paper
Proceedings Volume 12180, 121803N (2022) https://doi.org/10.1117/12.2628865
KEYWORDS: Coronagraphy, James Webb Space Telescope, Target acquisition, Data processing, Telescopes, Calibration, Interferometry, Image registration

Showing 5 of 83 publications
Course Instructor
SC502: High Dynamic Range Coronagraphy
Space-based coronagraphy has become a key area of high dynamic range astronomy. With the advent of effective ground-based adaptive optics (AO) systems, ground-based diffraction-limited coronagraphy has also become a scientifically exciting endeavor. This course will cover the fundamental principles of Lyot and phase-mask coronagraphs from the viewpoint of Fourier optics, and consider their use in space, as well as on existing and future ground-based AO telescopes. The aim of this course is to provide a sound theoretical and practical understanding of the necessary components of a high-contrast coronagraph.
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