ORBIT
Optical Characterisation and Radial Velocity Monitoring with Belgian and Indian Telescopes
Abstract
Two catalogues of exoplanet and eclipsing binary candidates were published by Barros et al. (2016, A&A, 594, A100) and Vanderburg et al. (2016, ApJS, 222, 14). They were detected from the Kepler archival data. Out of these, we selected a sample of objects for a detailed follow-up study to ascertain their precise nature.
For the project "Optical Characterization and Radial Velocity Monitoring with Belgian and Indian Telescopes" (ORBIT), we aim to use high-resolution spectra gathered with HERMES@Mercator (1.2-m La Palma, Spain) and HESP@HCT (2-m Hanle, India) in combination with photometric observations from small- and medium-sized telescopes at Devasthal Observatory (ARIES, Nainital, India) for radial velocity monitoring and to determine accurate values for their physical parameters.
The study of a sufficiently large sample of such candidates will enable us to make a large contribution on:
- Detection and characterisation of exoplanets (by determining accurate physical parameters through constraining the orbital inclination).
- Alleviation of the mass-radius problem of low-mass stars (by significantly increasing the number of low-mass eclipsing binaries with accurate masses, radii, and metallicities).
Collaborators
| Name | Affiliation & Contact |
|---|---|
| Alexander Panchal | ARIES, Nainital - alexander@aries.res.in — Principle Investigator |
| Aruna Goswami | IIA, Bengaluru - aruna@iia.res.in |
| Yogesh Chandra Joshi | ARIES, Nainital - yogesh@aries.res.in |
| Peter De Cat | ROB, Brussels - Peter.DeCat@oma.be |
| Patricia Lampens | ROB, Brussels - Patricia.Lampens@oma.be |
| Lore Vermeylen | ROB, Brussels - Lore.Vermeylen@oma.be |
Publications
Joshi Y.C., De Cat P., Panchal A., Goswami A., Lampens P., Vermeylen L., Maurya J., 2019, "Optical characterization and Radial velocity monitoring of Exoplanet and Low-mass Eclipsing Binary", Bulletin de la Société Royale des Sciences de Liège 88, 82 (paper)
Presentations
- Joshi Y.C., De Cat P., Panchal A., Goswami A., Lampens P., Vermeylen L., Maurya J., 2019, "Optical characterization and Radial velocity monitoring of Exoplanet and Eclipsing Binary", Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - October 2018 - Brussels, Belgium, contributed talk (pdf, mp4)
Proposals
- De Cat P., Panchal A., Goswami A., Lampens P., Joshi Y., "Characterization of planetary and eclipsing binary candidates: chasing secondary transits/eclipses with TIRCAM2" (Part III), time application for TIRCAM2@Devasthal-3.6-m DOT in 10/2021-01/2022; 24 hours requested; 24 hours allocated.
- De Cat P., Panchal A., Joshi Y., Lampens P., Goswami A., "Characterization of planetary and eclipsing binary candidates: chasing secondary transits/eclipses with TIRCAM2", time application for TIRCAM2@Devasthal-3.6-m DOT in 02/2021-05/2021; 8 hours requested; 24 hours allocated.
- De Cat P., Panchal A., Goswami A., Lampens P., Joshi Y., "Characterization of planetary and eclipsing binary candidates: chasing secondary transits/eclipses with TIRCAM2", time application for TIRCAM2@Devasthal-3.6-m DOT in 10/2020-01/2021; 3 nights requested; 1.5 nights allocated.
- De Cat P., Yoshik YC., Panchal A., Lampens P., Goswami A., Vermeylen L., "Optical characterisation and Radial velocity monitoring with Belgian and Indian Telescopes (ORBIT): exoplanet and low-mass eclipsing binary candidates", time application for HERMES@ORM/1.2-m in 10/2019-03/2020; 13.0 hours requested; 13.0 hours allocated.
- Panchal A., Goswami A., Joshi YC., De Cat P., Lampens P., Vermeylen L., "Radial velocity characterization of low-mass eclipsing binary candidates", time application for HESP@Hanle-2.0-m HTC in 05/2019-08/2019; 6 nights requested, 4 nights allocated.