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Devendra Bisht, Shashikiran Ganesh, Kiran Singh Baliyan, Ramakant Singh Yadav & Alok Durgapal

Study of II Galactic quadrant of Milky Way Galaxy using open clusters

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

Abstract

We have made UBV I CCD observations for the open clusters Teutsch 1, Riddle 4 and Czernik 6 using 1.04-m Sampurnanand telescope located at the ARIES observatory (Manora peak, Nainital, India). We have used 2MASS JHKS data for the clusters Teutsch 126, Teutsch 54 and Czernik 3. For the estimation of fundamental parameters, we have plotted radial density profiles, colour-magnitude and colour-colour diagrams. Using these inputs, we have studied the structure of Milky Way Galaxy in the second Galactic quadrant. We have considered the open clusters that are younger than 1 Gyrs and lay in the longitude range from 90 to 180 deg. Our study shows that up to 3.5 Kpc, the Galactic disc bends towards the southern hemisphere while after 3.5 Kpc it bends towards the northern hemisphere. The distribution of reddening with longitude and age shows a decreasing trend with the longitude and age of the clusters. Our study also indicates that younger clusters have more reddening than older ones.

Keywords : astronomy, astrophysics, photometry, stars, variability

Para citar este artículo

Devendra Bisht, Shashikiran Ganesh, Kiran Singh Baliyan, Ramakant Singh Yadav & Alok Durgapal, «Study of II Galactic quadrant of Milky Way Galaxy using open clusters», 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, 229 - 233 URL : https://popups.uliege.be:443/0037-9565/index.php?id=7665.

Acerca de: Devendra Bisht

Astronomy and Astrophysics Division, Physical Research Laboratory, Ahmedabad, India, 380009, dbisht@prl.res.in

Acerca de: Shashikiran Ganesh

Astronomy and Astrophysics Division, Physical Research Laboratory, Ahmedabad, India, 380009, shashi@prl.res.in

Acerca de: Kiran Singh Baliyan

Astronomy and Astrophysics Division, Physical Research Laboratory, Ahmedabad, India, 380009, baliyanprl@gmail.com

Acerca de: Ramakant Singh Yadav

Aryabhatta Research Institute of observational sciences, Manora peak, Nainital, India, rkant@aries.res.in

Acerca de: Alok Durgapal

Department of physics, DSB campus, Kumaun University Nainital, India, 263002, alokdurgapal@gmail.com