Optical Observations of star clusters NGC 1513 and NGC 4147; white dwarf WD1145+017 and $K$ band imaging of star forming region Sh2-61 with the 3.6 meter Devasthal Optical Telescope

Abstract

The $UBVRI$ CCD photometric data of open star cluster NGC 1513 are obtained with the 3.6-m Indo-Belgian Devasthal optical telescope (DOT). Analyses of the GAIA EDR3 astrometric data have identified 106 possible cluster members. The mean proper motion of the cluster is estimated as ${\mu }_{\alpha }Cos\delta =1.29\pm 0.02$ and ${\mu }_{\delta }=-3.74\pm 0.02$ mas yr${}^{-1}$. Estimated values of reddening $E(B-V)$ and distance to the NGC 1513 are 0.65$\pm$0.03 mag and 1.33$\pm$0.1 kpc respectively. An age of $225\pm 25$ Myr is assigned to the cluster by comparing theoretical isochrones with deep observed cluster sequence. Using observations taken with the 3.6-m DOT, values of distance and age of the galactic globular cluster NGC 4147 are estimated as $18.2\pm 0.2$ Kpc and $14\pm 2$ Gyr respectively. The optical observations of planetary transit around white dwarf WD1145+017 and $K$-band imaging of star-forming region Sharpless Sh 2-61 demonstrate observing capability of 3.6-m DOT. Optical and near-infrared observations of celestial objects and events are being carried out routinely with the 3.6-m DOT. They indicate that the performance of the telescope is at par with those of other similar telescopes located elsewhere in the world. We therefore state that this observing facility augurs well for multi-wavelength astronomy including study of astrophysical jets.

arXiv commentAccepted for Special Issue of Journal of Astrophysics and Astronomy, 2022, Astrophysical jets and observational facilities: National perspective, 05-09 April 2021, ARIES Nainital

References in corpus (21)

• Gaia Data Release 2. Summary of the contents and survey properties
• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• A Gaia DR2 view of the Open Cluster population in the Milky Way
• A catalogue of masses, structural parameters and velocity dispersion profiles of 112 Milky Way globular clusters
• Gaia Early Data Release 3 -- Catalogue validation
• The Updated BaSTI Stellar Evolution Models and Isochrones: I. Solar Scaled Calculations
• Ground-based CCD astrometry with wide field imagers. II. A star catalogue for M67: [email protected] MPG/ESO astrometry, FLAMES@VLT radial velocities
• CCD BV survey of 42 open clusters
• Proper motions and membership probabilities of stars in the region of open cluster NGC 3766
• Photometric, polarimetric, and spectroscopic studies of the luminous, slow-decaying Type Ib SN 2012au
• The 3.6 meter Devasthal Optical Telescope: From inception to realisation
• SN 2020ank: a bright and fast-evolving H-deficient superluminous supernova
• Transiting Disintegrating Planetary Debris around WD 1145+017
• Scientific capabilities and advantages of the 3.6 meter optical telescope at Devasthal, Uttarakhand
• First-light images from low dispersion spectrograph-cum-imager on 3.6-meter Devasthal Optical Telescope
• Proper Motions and CCD-photometry of Stars in the Region of the Open Cluster NGC 1513
• Observations with the 3.6 meter Devasthal Optical Telescope
• VR CCD photometry of variable stars in globular cluster NGC 4147
• UVIT study of UV bright stars in the globular cluster NGC 4147
• Deep V and I CCD photometry of young star cluster NGC 1893 with the 3.6m DOT
• Optical detection of a GMRT-detected candidate high-redshift radio galaxy with 3.6-m Devasthal optical telescope

Cited by in corpus (2)

• History of ARIES: A premier research institute in the area of observational sciences
• Pathway to Devasthal Astronomical Observatory, ARIES