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Samrat Ghosh, Soumen Mondal, Ramkrishna Das, Santosh Joshi, Sneh Lata & Siddhartha Biswas

A search for fast photometric variability in very low mass stars and brown dwarfs

(Volume 88 - Année 2019 — Actes de colloques — 2nd Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - October 2018 - Brussels, Belgium)
DOI: 10.25518/0037-9565.8967
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Open Access

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Mots-clés : étoile de faible masse, naines brunes, photométrie, variabilité

Abstract

We present here I-band time-series photometric studies of a few very low-mass stars (VLMs) and brown dwarfs (BDs) in the young (age of 2-3 Myr) IC348 star-forming region in the Perseus Molecular Cloud. Our main aim is to explore the fast rotating (of time scale of a few hours) BDs and VLMs in the I-band. From our preliminary results, we find significant variability in the young M5 dwarf 2MASS J03443896+3203196 with a rotation period of 16.037 hours.

Keywords : low-mass star, brown dwarfs, photometry, variability

Pour citer cet article

Samrat Ghosh, Soumen Mondal, Ramkrishna Das, Santosh Joshi, Sneh Lata & Siddhartha Biswas, «A search for fast photometric variability in very low mass stars and brown dwarfs», 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, 275 - 278 URL : http://popups.ulg.be/0037-9565/index.php?id=8967.

A propos de : Samrat Ghosh

S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India, samrat687@gmail.com

A propos de : Soumen Mondal

S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India

A propos de : Ramkrishna Das

S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India

A propos de : Santosh Joshi

Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263002, India

A propos de : Sneh Lata

Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263002, India

A propos de : Siddhartha Biswas

S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India