A search for fast photometric variability in very low mass stars and brown dwarfs
Samrat Ghosh,
S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India, samrat687@gmail.com
Soumen Mondal,
S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
Ramkrishna Das,
S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
Santosh Joshi,
Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263002, India
Sneh Lata,
Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital-263002, India
Siddhartha Biswas,
S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
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 : https://popups.uliege.be/0037-9565/index.php?id=8967.