A Gaia based photometric and kinematic analysis of the old open cluster King 11

Abstract

This paper presents an investigation of an old age open cluster King 11 using Gaia's Early Data Release 3 (EDR3) data. Considering the stars with membership probability ($P_{\mu }$) $>90\%$, we identified 676 most probable cluster members within the cluster's limiting radius. The mean proper motion (PM) for King 11 is determined as: ${\mu }_x=-3.391\pm 0.006$ and ${\mu }_y=-0.660\pm 0.004$ mas yr${}^{-1}$. The blue straggler stars (BSS) of King 11 show a centrally concentrated radial distribution. The values of limiting radius, age, and distance are determined as 18.51 arcmin, 3.63$\pm$0.42 Gyr and $3.33\pm 0.15$ kpc, respectively. The cluster's apex coordinates ($A=267.84^{\circ }\pm 1.01^{\circ }$, $D=-27.48^{\circ }\pm 1.03^{\circ }$) are determined using the apex diagram (AD) method and verified using the (${\mu }_U$,${\mu }_T$) diagram. We also obtained the orbit that the cluster follows in the Galaxy and estimated its tentative birthplace in the disk. The resulting spatial velocity of King 11 is 60.2 $\pm$ 2.16 km s${}^{-1}$. A significant oscillation along the $Z$-coordinate up to 0.556$\pm$0.022~kpc is determined.

References in corpus (23)

• The Gaia mission
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• galpy: A Python Library for Galactic Dynamics
• The mass distribution and gravitational potential of the Milky Way
• A catalog of newly identified star clusters in GAIA DR2
• Dynamical age differences among coeval star clusters as revealed by blue stragglers
• Ground-Based CCD Astrometry with Wide Field Imagers. I. [Observations just a few years apart allow decontamination of field objects from members in two Globular clusters.]
• Ground-based CCD astrometry with wide field imagers. II. A star catalogue for M67: [email protected] MPG/ESO astrometry, FLAMES@VLT radial velocities
• A new, Gaia based, catalogue of blue straggler stars in open clusters
• 3D Morphology of Open Clusters in the Solar Neighborhood with Gaia EDR3: its Relation to Cluster Dynamics
• The substructure and halo population of the Double Cluster $h$ and $\chi$ Persei
• New star clusters discovered towards the Galactic bulge direction using Gaia DR2
• Blue Straggler Populations of Seven Open Clusters with Gaia DR2
• The old open clusters Berkeley 32 and King 11
• An investigation of poorly studied open cluster NGC 4337 using multi-color photometric and Gaia DR2 astrometric data
• Confirmation and physical characterization of the new bulge globular cluster Patchick 99 from the VVV and Gaia surveys
• Multi-colour photometry and Gaia EDR3 astrometry of two couples of binary clusters (NGC 5617 and Trumpler 22) and (NGC 3293 and NGC 3324)
• Apex determination and detection of stellar clumps in the open cluster M 67
• The blue straggler population of the old open cluster Berkeley 17
• A study of the blue straggler population of the old open cluster Collinder 261
• A comprehensive analysis of NGC 2158 in Gaia era: photometric parameters, apex and orbit
• A proper motions study of the globular cluster NGC 3201
• A deep study of an intermediate age open cluster SAI 35 (Juchert 20) using ground based imaging and Gaia EDR3 astrometry

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