The 10 pc Neighborhood of Habitable Zone Exoplanetary Systems: Threat Assessment from Stellar Encounters & Supernovae

Authors: Pyne, Tisyagupta, Banyal, Ravinder K., Swastik, C., De, Ayanabha

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2410.22396

Low-resolution Transit Spectroscopy of Three Hot Jupiters Using the 2m Himalayan Chandra Telescope

Authors: Unni, Athira, Sivarani, Thirupathi, Goyal, Jayesh, Joshi, Yogesh C., Oza, Apurva V., Banyal, Ravinder K

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2410.18450

Age analysis of extrasolar planets: Insight from stellar isochrone models

Authors: Swastik, C., Banyal, Ravinder K., Narang, Mayank, Unni, Athira, Sivarani, T.

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2404.13398

Recovering simulated planet and disk signals using SCALES aperture masking

Authors: Lach, Mackenzie, Sallum, Steph, Banyal, Ravinder, Batalha, Natalie, Blake, Geoff, Brandt, Tim, Briesemeister, Zackery, Desai, Aditi, Eisner, Josh, Fong, Wen-fai, Greene, Tom, Honda, Mitsuhiko, Kain, Isabel, Kilpatrick, Charlie, de Kleer, Katherine, Liu, Michael, Macintosh, Bruce, Martinez, Raquel, Mawet, Dimitri, Miles, Brittany, Morley, Caroline, de Pater, Imke, Powell, Diana, Sheehan, Patrick, Skemer, Andrew, Spilker, Justin, Stelter, Deno, Stone, Jordan, Surya, Arun, Thirupathi, Sivarani, Wagner, Kevin, Zhou, Yifan

Source: SPIE Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 1268024 (2023)

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2310.12483

Simulating medium-spectral-resolution exoplanet characterization with SCALES angular/reference differential imaging

Authors: Desai, Aditi, Sallum, Stephanie E., Banyal, Ravinder, Batalha, Natalie, Batalha, Natasha, Blake, Geoff, Brandt, Tim, Briesemeister, Zack, de Kleer, Katherine, de Pater, Imke, Eisner, Josh, Fong, Wen-fai, Greene, Tom, Honda, Mitsuhiko, Kain, Isabel, Kilpatrick, Charlie, Lach, Mackenzie, Liu, Mike, Macintosh, Bruce, Martinez, Raquel A., Mawet, Dimitri, Miles, Brittany, Morley, Caroline, Powell, Diana, Sheehan, Patrick, Skemer, Andrew J., Spilker, Justin, Stelter, R. Deno, Stone, Jordan, Surya, Arun, Thirupathi, Sivarani, Wagner, Kevin, Zhou, Yifan

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2310.12193

The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES): driving science cases and expected outcomes

Authors: Sallum, Steph, Skemer, Andrew, Stelter, Deno, Banyal, Ravinder, Batalha, Natalie, Batalha, Natasha, Blake, Geoff, Brandt, Tim, Briesemeister, Zack, de Kleer, Katherine, de Pater, Imke, Desai, Aditi, Eisner, Josh, Fong, Wen-fai, Greene, Tom, Honda, Mitsuhiko, Jensen-Clem, Rebecca, Kain, Isabel, Kilpatrick, Charlie, Kupke, Renate, Lach, Mackenzie, Liu, Michael C., Macintosh, Bruce, Martinez, Raquel A., Mawet, Dimitri, Miles, Brittany, Morley, Caroline, Powell, Diana, Sethuram, Ramya, Sheehan, Patrick, Spilker, Justin, Stone, Jordan, Surya, Arun, Thirupathi, Sivarani, Unni, Athira, Wagner, Kevin, Zhou, Yifan

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2310.07134

Age distribution of exoplanet host stars: Chemical and Kinematics age proxies from GAIA DR3

Authors: Swastik, C., Banyal, Ravinder K., Narang, Mayank, Unni, Athira, Banerjee, Bihan, Manoj, P., Sivarani, T.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2307.11442

uGMRT observations of the hot-Saturn WASP 69b: Radio-Loud Exoplanet-Exomoon Survey II (RLEES II)

Authors: Narang, Mayank, Oza, Apurva V., Hakim, Kaustubh, Manoj, P., Tyagi, Himanshu, Banerjee, Bihan, Surya, Arun, Nayak, Prasanta K., Banyal, Ravinder K., Thorngren, Daniel P.

Subject Terms: Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2303.17269

Radio-Loud Exoplanet-Exomoon Survey (RLEES): GMRT Search for Electron Cyclotron Maser Emission

Authors: Narang, Mayank, Oza, Apurva V., Hakim, Kaustubh, Puravankara, Manoj, Banyal, Ravinder K., Thorngren, Daniel P.

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2210.13298

Design of SCALES: A 2-5 Micron Coronagraphic Integral Field Spectrograph for Keck Observatory

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

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2208.10721

Carbon abundance of stars in the LAMOST-Kepler field

Authors: Unni, Athira, Narang, Mayank, Sivarani, Thirupathi, Puravankara, Manoj, Banyal, Ravinder K, Surya, Arun, Rajaguru, S. P., Swastik, C.

Source: The Astronomical Journal, 164:181 (11pp), 2022 November

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2208.10057

Design of an IR Imaging Channel for the Keck Observatory SCALES Instrument

Authors: Banyal, Ravinder K., Hasan, Amirul, Kupke, Reni, Varshney, Hari Mohan, Prakash, Ajin, Sivarani, T., Skemer, Andy J., MacDonald, Nick, Sallum, Steph, Deich, Will, Fitzgerald, Michael P., Govinda, K. V., Ratliff, Chris, Sethuram, Ramya, Stelter, Deno, Surya, Arun, Wang, Eric

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2208.07523

Galactic chemical evolution of exoplanet host stars: Are high-mass planetary systems young?

Authors: Swastik, C., Banyal, Ravinder K., Narang, Mayank, Manoj, P., Sivarani, T., Rajaguru, S. P., Unni, Athira, Banerjee, Bihan

Source: The Astronomical Journal, 164:60 (16pp), 2022 August

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2205.15793

Method for tilt correction of calibration lines in high resolution spectra

Authors: Das, Tanya, Banyal, Ravinder K.

Source: Applied Optics, Vol. 60, Issue 31, pp. 9906-9914, 2021

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2111.00751

Host star metallicity of directly imaged wide-orbit planets: implications for planet formation

Authors: Swastik, C., Banyal, Ravinder K., Narang, Mayank, Manoj, P., Sivarani, T., Reddy, Bacham E., Rajaguru, S. P.

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2012.13694

Developement of a stabilized Fabry-Perot etalon based calibrator for Hanle Echelle Spectrograph (HESP)

Authors: Das, Tanya, Banyal, Ravinder K., T., Sivarani, B, Ravindra

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2006.01453

Development of image motion compensation system for 1.3 m telescope at Vainu Bappu Observatory

Authors: Reddy V, Sreekanth, Banyal, Ravinder Kumar, R, Sridharan, Kamath, P U, Selvaraj, Aishwarya

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/1908.11027

High-resolution Infrared Spectrograph for Exoplanet Characterization with the Keck and Thirty Meter Telescopes

Authors: Mawet, Dimitri, Fitzgerald, Michael, Konopacky, Quinn, Beichman, Charles, Jovanovic, Nemanja, Dekany, Richard, Hover, David, Chisholm, Eric, Ciardi, David, Artigau, Etienne, Banyal, Ravinder, Beatty, Thomas, Benneke, Bjorn, Blake, Geoffrey A., Burgasser, Adam, Canalizo, Gabriela, Chen, Guo, Do, Tuan, Doppmann, Greg, Doyon, Rene, Dressing, Courtney, Fang, Min, Greene, Thomas, Hillenbrand, Lynne, Howard, Andrew, Kane, Stephen, Kataria, Tiffany, Kempton, Eliza, Knutson, Heather, Kotani, Takayuki, Lafreniere, David, Liu, Chao, Nishiyama, Shogo, Pandey, Gajendra, Plavchan, Peter, Prato, Lisa, Rajaguru, S. P., Robertson, Paul, Salyk, Colette, Sato, Bunei, Schlawin, Everett, Sengupta, Sujan, Sivarani, Thirupathi, Skidmore, Warren, Tamura, Motohide, Terada, Hiroshi, Vasisht, Gautam, Wang, Ji, Zhang, Hui

Source: Astro2020 APC White Paper: Optical and Infrared Observations from the Ground

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1908.03623

Estimation and correction of the instrumental perturbations of Vainu Bappu Telescope Echelle spectrograph using a model-based approach

Authors: Chamarthi, Sireesha, Banyal, Ravinder K., Sripadmanabhan, Sriram

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/1906.05064

Toward precision radial velocity measurements using Echelle spectrograph at Vainu Bappu Telescope

Authors: Chamarthi, Sireesha, Banyal, Ravinder K., Sriram, S.

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/1905.10539