Polarimetric Approach Towards Membership Probability of Open Star Cluster NGC 2345
Sadhana Singh,
Astronomy & Astrophysics Division, Physical Research Laboratory (PRL), Ahmedabad-380009, India and Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263001, India. Corresponding author: sadhanasingh0824@gmail.com, sadhanasingh@prl.res.in
Jeewan Chandra Pandey,
Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263001, India
Vishal Joshi,
Astronomy & Astrophysics Division, Physical Research Laboratory (PRL), Ahmedabad-380009, India
Abstract
Using the linear polarimetric observations, we present a method to derive the membership probability of stars in cluster NGC 2345. The polarimetric observations of cluster NGC 2345 are performed using the instrument ARIES IMaging POLarimeter (AIMPOL) mounted as a back-end of the 104 cm telescope of ARIES. Members of the cluster should exhibit comparable polarization since they are located nearly at the same distance. This concept is used to extract the membership probability of known member stars of cluster NGC 2345. The membership probability estimated using the polarimetric data for cluster NGC 2345 agrees with the membership probability derived from the proper motion method in the previous studies.
Keywords : polarization, open cluster, membership
Pour citer cet article
Sadhana Singh, Jeewan Chandra Pandey & Vishal Joshi, «Polarimetric Approach Towards Membership Probability of Open Star Cluster NGC 2345», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 93 - Année 2024, No 2 - Proceeedings of the 3rd BINA Workshop on the Scientific Potential of the Indo-Belgian Cooperation, 308-314 URL : http://popups.ulg.be/0037-9565/index.php?id=11691.