Prof. Sivarani Thirupathi
Professor at Indian Institute of Astrophysics
SPIE Involvement:
Author
Publications (24)

Proceedings Article | 30 September 2024 Presentation + Paper
Mackenzie Lach, Stephanie Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Timothy Brandt, Zackery Briesemeister, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Katherine de Kleer, Michael Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Imke de Pater, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou
Proceedings Volume 13095, 130950Y (2024) https://doi.org/10.1117/12.3019285
KEYWORDS: Design, Mirrors, Image restoration, Adaptive optics, Solar system, Optical path differences, Exoplanets, Telescopes, Spatial resolution, Source mask optimization

Proceedings Article | 17 September 2024 Poster + Paper
Aditi Desai, Steph Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Mackenzie Lach, Mike Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Patrick Sheehan, Andrew Skemer, R. Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou
Proceedings Volume 13096, 130969C (2024) https://doi.org/10.1117/12.3020521
KEYWORDS: Planets, Stars, Point spread functions, Exoplanets, Speckle, Atmospheres, Spectral resolution, Atmospheric modeling, Simulations, Signal to noise ratio

Proceedings Article | 23 August 2024 Poster + Paper
Proceedings Volume 13099, 130992C (2024) https://doi.org/10.1117/12.3019070
KEYWORDS: Stars, Simulations, Spectroscopy, Satellites, Galactic astronomy

Proceedings Article | 19 July 2024 Poster
Amirul Hasan, Ravinder K. Banyal, Renate Kupke, Andrew J. Skemer, Ajin Prakash, Sivarani Thirupathi, Deno Stelter, Ramya Sethuram, Arun Surya, Nick MacDonald, Steph Sallum, Mackenzie Lach, Scott Lilley
Proceedings Volume 13096, 130966X (2024) https://doi.org/10.1117/12.3019833

Proceedings Article | 18 July 2024 Presentation + Paper
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

Proceedings Article | 18 July 2024 Poster + Paper
Manjunath Bestha, T. Sivarani, Arun Surya, Sudharsan Yadav, Athira Unni, Parvathy M., Devika Divakar, S. Sriram, Ajin Prakash, Amirul Hasan
Proceedings Volume 13096, 1309661 (2024) https://doi.org/10.1117/12.3019098
KEYWORDS: Design, Spectroscopy, Telescopes, Mirrors, Large telescopes, Spectrographs, Astronomical imaging, Dichroic mirrors, Dispersion, Optical fibers

Proceedings Article | 18 July 2024 Poster + Paper
Proceedings Volume 13096, 130966W (2024) https://doi.org/10.1117/12.3019578
KEYWORDS: Spectrographs, Modeling, Sensors, Point spread functions, Optical design, Tunable filters, Zemax, Spectral resolution, Ray tracing, Optical filters

Proceedings Article | 6 October 2023 Presentation
Proceedings Volume 12680, 1268005 (2023) https://doi.org/10.1117/12.2677759
KEYWORDS: Spectrographs, Modeling, Keck Observatory, Equipment, Point spread functions, Geometrical optics, Data modeling, Spectroscopes, Spectral resolution, Microlens

Proceedings Article | 5 October 2023 Poster + Paper
Aditi Desai, Stephanie Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Mackenzie Lach, Mike Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, R. Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou
Proceedings Volume 12680, 1268023 (2023) https://doi.org/10.1117/12.2677846
KEYWORDS: Exoplanets, Planets, Stars, Spectroscopy, Spectrographs, Spectral resolution, Speckle, Simulations, Lens arrays, Iterated function systems

Proceedings Article | 5 October 2023 Poster + Paper
Raquel Martinez, Steph Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Renate Kupke, Mackenzie Lach, Mike Liu, Bruce Macintosh, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou
Proceedings Volume 12680, 126801W (2023) https://doi.org/10.1117/12.2677530
KEYWORDS: Planets, Spectroscopy, Exoplanets, Data modeling, Tunable filters, Thermography, Systems modeling, Spectrographs, Planetary systems, Optical filters

Proceedings Article | 5 October 2023 Presentation + Paper
Steph Sallum, Andrew Skemer, Deno Stelter, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Tim Brandt, Zack Briesemeister, Katherine de Kleer, Imke de Pater, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Rebecca Jensen-Clem, Isabel Kain, Charlie Kilpatrick, Renate Kupke, Mackenzie Lach, Michael Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Diana Powell, Ramya Sethuram, Patrick Sheehan, Justin Spilker, Jordan Stone, Arun Surya, Sivarani Thirupathi, Athira Unni, Kevin Wagner, Yifan Zhou
Proceedings Volume 12680, 1268003 (2023) https://doi.org/10.1117/12.2677831
KEYWORDS: Planets, Simulations, Exoplanets, Equipment, Spectroscopes, Spectrographs, Solar system, Lens arrays, Keck Observatory, Galactic astronomy

Proceedings Article | 5 October 2023 Poster + Paper
Mackenzie Lach, Steph Sallum, Ravinder Banyal, Natalie Batalha, Geoff Blake, Tim Brandt, Zackery Briesemeister, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Katherine de Kleer, Michael Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Imke de Pater, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou
Proceedings Volume 12680, 1268024 (2023) https://doi.org/10.1117/12.2677954
KEYWORDS: Design and modelling, Planets, Imaging systems, Exoplanets

Proceedings Article | 5 October 2023 Presentation + Paper
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

Proceedings Article | 4 October 2023 Poster + Paper
Manjunath Bestha, Amirul Hasan, Devika Divakar, Arun Surya, S. Sriram, T. Sivarani, Ajin Prakash, Parvathy M., Sudharshan Yadav
Proceedings Volume 12677, 126770Q (2023) https://doi.org/10.1117/12.2677192
KEYWORDS: Multiplexing, Mechanical positioning systems, Dispersion, Telescopes, Mirrors, Thirty Meter Telescope, Spectroscopy, Prisms, Design and modelling, Tolerancing, Spectroscopic atmospheric monitoring techniques

Proceedings Article | 30 August 2022 Presentation + Paper
Proceedings Volume 12185, 1218506 (2022) https://doi.org/10.1117/12.2629775
KEYWORDS: Near infrared, Stars, Atmospheric modeling, Adaptive optics, Thirty Meter Telescope, Data modeling, Infrared radiation, Photometry, Infrared telescopes, Telescopes

Proceedings Article | 29 August 2022 Presentation + Paper
Ravinder K. Banyal, Armirul Hasan, Reni Kupke, Hari Mohan Varshney, Ajin Prakaesh, T. Sivarani, Andy J. Skemer, Nick MacDonald, Steph Sallum, Will Deich, Michael P. Fitzgerald, K. V. Govinda, Chris Ratliff, Ramya Sethuram, Deno Stelter, Arun Surya, Eric Wang
Proceedings Volume 12188, 121881U (2022) https://doi.org/10.1117/12.2630696
KEYWORDS: Imaging systems, Sensors, Mirrors, Iterated function systems, Exoplanets, Image filtering, Computer aided design, Coronagraphy, Telescopes, Adaptive optics

Proceedings Article | 29 August 2022 Presentation + Paper
Proceedings Volume 12184, 1218423 (2022) https://doi.org/10.1117/12.2629464
KEYWORDS: Cameras, Telescopes, Sensors, Diffraction gratings, Spectrographs, Thirty Meter Telescope, Imaging systems, Mirrors, Collimators, Optical instrument design

Proceedings Article | 29 August 2022 Presentation + Paper
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

Proceedings Article | 13 December 2020 Poster + Paper
Proceedings Volume 11447, 1144748 (2020) https://doi.org/10.1117/12.2562007
KEYWORDS: Fabry–Perot interferometers, Spectrographs, Calibration, Doppler effect, Spectroscopes, Velocity measurements, Distortion, Stars, Instrument modeling, Telescopes

Proceedings Article | 10 July 2018 Paper
Proceedings Volume 10705, 107051G (2018) https://doi.org/10.1117/12.2312155
KEYWORDS: Optical components, Zemax, Spectrographs, Monte Carlo methods, Device simulation, Optical design, Spectroscopy

Proceedings Article | 9 July 2018 Presentation
Proceedings Volume 10702, 1070220 (2018) https://doi.org/10.1117/12.2312283
KEYWORDS: Spectrographs, Thirty Meter Telescope, Multiplexing, Robotic systems, Spectroscopy, Astronomical imaging, Robotics, Fiber couplers, Telescopes

Proceedings Article | 6 July 2018 Paper
Tanya Das, Ravinder Banyal, S. Kathiravan, T. Sivarani, Ravindra B.
Proceedings Volume 10702, 107026A (2018) https://doi.org/10.1117/12.2312472
KEYWORDS: Fabry–Perot interferometers, Calibration, Spectrographs, Spectroscopy, Precision calibration

Proceedings Article | 6 July 2018 Paper
S. Sriram, Amit Kumar, Arun Surya, T. Sivarani, Sunetra Giridhar, S. Kathiravan, M. N. Anand, Damien Jones, Deon Grobler, Robert Jakobsson, Anantha Chanumolu, Athira Unni, Angchuk Dorje, Tsewang Dorje, Tsewang Gyalson
Proceedings Volume 10702, 107026K (2018) https://doi.org/10.1117/12.2313165
KEYWORDS: Spectrographs, Calibration, Mirrors, Telescopes, Charge-coupled devices, Sensors

Proceedings Article | 15 June 2015 Paper
Ramya Anche, G. Anupama, Krishna Reddy, Asoke Sen, K. Sankarasubramanian, A. Ramaprakash, Sujan Sengupta, Warren Skidmore, Jenny Atwood, Sivarani Tirupathi, Shashi Bhushan Pandey
Proceedings Volume 9654, 965408 (2015) https://doi.org/10.1117/12.2181397
KEYWORDS: Mirrors, Polarization, Telescopes, Zemax, Modeling, Instrument modeling, Mueller matrices, Polarimetry, Coating, Thirty Meter Telescope

Showing 5 of 24 publications
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