Teutsch 76: a Deep Near-Infrared Study

Saurabh Sharma; Lokesh Dewangan; Neelam Panwar; Harmeen Kaur; Devendra K. Ojha; Ramkesh Yadav; Aayushi Verma; Tapas Baug; Tirthendu Sinha; Rakesh Pandey; Arpan Ghosh; Tarak Chand

doi:10.1007/s12036-023-09936-w

paper

Teutsch 76: a Deep Near-Infrared Study

arXiv:2302.04516 · doi:10.1007/s12036-023-09936-w

Abstract

We have performed a detailed analysis on the Teutsch 76 (T76) open cluster using the deep near-infrared (NIR) observations taken with the TANSPEC instrument mounted on the 3.6m Devasthal Optical Telescope (DOT) along with the recently available high quality proper motion data from the {\it Gaia} data release 3 and deep photometric data from Pan-STARRS1 survey. We have found that the T76 cluster is having a central density concentration with circular morphology, probably due to the star formation processes. The radius of the T76 cluster is found to be 45 $^{'}^{'}$ (1.24 pc) and 28 stars within this radius were marked as highly probable cluster members. We have found that the cluster is located at a distance of $5.7 \pm 1.0$ kpc and is having an age of $50 \pm 10$ Myr. The mass function slope ( $Γ$ ) in the cluster region in the mass range $\sim$ 0.75 $<$ M/M $_{⊙}$ $<$ 5.8 is estimated as $- 1.3 \pm 0.2$ , which is similar to the value `-1.35' given by \citet{1955ApJ...121..161S}. The cluster is not showing any signatures of mass-segregation and is currently undergoing dynamical relaxation.

Accepted for publication in Journal of Astrophysics and Astronomy

Teutsch 76: a Deep Near-Infrared Study

Abstract

References in corpus (15)