Bulletin de la Société Royale des Sciences de Liège Bulletin de la Société Royale des Sciences de Liège -  Volume 88 - Année 2019  Actes de colloques  2nd Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - October 2018 - Brussels, Belgium 

Characterization of pre-main sequence population in H II region Sh2-242

DOI: 10.25518/0037-9565.8959
Alik Panja, 
S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India,  alik.panja@gmail.com
Soumen Mondal, 
S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India
Somnath Dutta, 
S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India
Santosh Joshi, 
Aryabhatta Research Institute of Observational Sciences, Nainital 263002, India
Sneh Lata, 
Aryabhatta Research Institute of Observational Sciences, Nainital 263002, India
Ramkrishna Das, 
S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India
Siddhartha Biswas, 
S. N. Bose National Centre for Basic Sciences, Kolkata 700106, India

Abstract

We present here preliminary results of the young stellar population associated with an active star-forming region Sh2-242 using multi-wavelength observational data. The cluster radius of the region is estimated as 11 arcmin from the radial density profile, using Wide-field InfraRed Camera deep K-band photometric data. Using a deep infrared photometric survey, we have classified more than 150 young stellar objects, distributed within the cluster region. A total of 36 Hα emission line objects were detected using slitless spectroscopic observations and INT Photometric Hα Survey of the Northern Galactic Plane photometric data. The optical spectroscopic study confirms that the cluster member BD+26 980 is a massive early-type star (B0.5 V). From the spectrophotometric analysis, the distance to the massive star is estimated as 1769 ± 193 pc, confirming earlier estimations.

Keywords : stars, formation, pre-main-sequence, infrared, interstellar medium, H II regions

Pour citer cet article

Alik Panja, Soumen Mondal, Somnath Dutta, Santosh Joshi, Sneh Lata, Ramkrishna Das & Siddhartha Biswas, «Characterization of pre-main sequence population in H II region Sh2-242», 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, 270 - 274 URL : https://popups.uliege.be/0037-9565/index.php?id=8959.