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Tirthendu Sinha, Saurabh Sharma, Rakesh Pandey & Anil Kumar Pandey

Pre-main sequence variables in young cluster Stock 18

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Mots-clés : astronomie, astrophysique, formation des étoiles, photométrie, variabilité

Abstract

We have carried out multi-epoch deep I band photometry of the open cluster Stock 18 to search for variable stars in star forming regions. In the present study, we identified 65 periodic and 217 non-periodic variable stars. The periods of most of the periodic variables are between 2 hours to 15 days and their magnitude varies between 0.05 to 0.6 mag. We have derived spectral energy distributions for 48 probable pre-main sequence variables. Their average age and mass are 2.7 ± 0.3 Myrs and 2.7 ± 0.2 Mo, respectively.

Keywords : astronomy, astrophysics, photometry, star formation, variability

To cite this article

Tirthendu Sinha, Saurabh Sharma, Rakesh Pandey & Anil Kumar Pandey, «Pre-main sequence variables in young cluster Stock 18», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 87 - Année 2018, Actes de colloques, First Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - November 2016 - Nainital, India, 262 - 265 URL : https://popups.uliege.be:443/0037-9565/index.php?id=7695.

About: Tirthendu Sinha

Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263 002, India, tirthendu@aries.res.in

About: Saurabh Sharma

Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263 002, India

About: Rakesh Pandey

Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263 002, India

About: Anil Kumar Pandey

Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, 263 002, India