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Yogesh Chandra Joshi, Peter De Cat, Alaxendra Panchal, Aruna Goswami, Patricia Lampens, Lore Vermeylen & Jayanand Maurya

Optical characterization and Radial velocity monitoring of Exoplanet and Eclipsing Binary

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Mots-clés : binaires, exoplanetes, étoiles de faible masse, photométrie, spectroscopie

Abstract

In recent times, many new exoplanet and eclipsing binary candidates are reported, particularly from the archival data produced by the Kepler space mission destined to detect exoplanets in the Cygnus-Lyra region of the sky. In the framework of Belgo-Indian Network for Astronomy & Astrophysics (BINA) project, we also initiated a long-term programme ”Optical characterization and Radial velocity monitoring with Belgian and Indian Telescopes (ORBIT)” which aims at collecting ground-based photometric and high-resolution spectroscopic observations of exoplanet candidates as well as low-mass eclipsing binary candidates using the Indo-Belgian telescopes. We initially focus our study on a few bright candidates for which high-precision radial velocity and photometry could be possible from the available facilities within the BINA network. Our aim is to determine the physical parameters of these candidate stars in order to derive their true nature. Having a large enough sample of low-mass objects from this survey as well as from those reported in the earlier surveys, we intend to understand the mass-radius relation which is still debated for the low-mass regime of the main-sequence stars.

Keywords : eclipsing binaries, exoplanets, low-mass stars, photometry, spectroscopy

To cite this article

Yogesh Chandra Joshi, Peter De Cat, Alaxendra Panchal, Aruna Goswami, Patricia Lampens, Lore Vermeylen & Jayanand Maurya, «Optical characterization and Radial velocity monitoring of Exoplanet and Eclipsing Binary», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 88 - Année 2019, Actes de colloques, 2nd Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - October 2018 - Brussels, Belgium, 82-88 URL : https://popups.uliege.be/0037-9565/index.php?id=8685.

About: Yogesh Chandra Joshi

Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263002, India, yogesh@aries.res.in

About: Peter De Cat

Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium

About: Alaxendra Panchal

Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263002, India, https://exoplanetarchive.ipac.caltech.edu/

About: Aruna Goswami

Indian Institute of Astrophysics, 2nd Block, Koramangala, Bengaluru 560 034, India

About: Patricia Lampens

Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium

About: Lore Vermeylen

Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium

About: Jayanand Maurya

Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263002, India, https://exoplanetarchive.ipac.caltech.edu/