The disintegrating old open cluster Czernik 3

Abstract

We have performed a detailed analysis of the Czernik 3 (Cz3) open cluster by using deep near-infrared photometry taken with TIRCAM2 on 3.6m Devasthal optical telescope along with the recently available high quality proper motion data from the {\it Gaia} DR2 and deep photometric data from Pan-STARRS1. The cluster has a highly elongated morphology with fractal distribution of stars. The core and cluster radii of the cluster are estimated as 0.5 pc and 1.2 pc, respectively. We have identified 45 stars as cluster members using the {\it Gaia} proper motion data. The distance and age of the cluster are found to be $3.5\pm 0.9$ kpc and $0.9_{-0.1}^{+0.3}$ Gyr, respectively. The slope of the mass function $‘{\Gamma }^{\prime }$ in the cluster region, in the mass range $\sim$0.95$<$M/M${}_{\odot }$$<$2.2, is found to be $-1.01\pm 0.43$. The cluster shows the signatures of mass-segregation and is dynamically relaxed (dynamical age=10 Myr). This along with its small size, big tidal radius, low density/large separation of stars, and elongated and distorted morphology, indicate that the Cz3 is a loosely bound disintegrating cluster under the influence of external tidal interactions.

arXiv commentAccepted for publication in MNRAS main journal, 15 pages, 11 figures, 4 tables. Text updated

References in corpus (70)

• Galactic Stellar and Substellar Initial Mass Function
• Gaia Data Release 2. Summary of the contents and survey properties
• The Gaia mission
• Embedded Clusters in Molecular Clouds
• The Initial Mass Function of Stars: Evidence for Uniformity in Variable Systems
• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MASS
• New catalogue of optically visible open clusters and candidates
• A Spitzer Survey of Young Stellar Clusters within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis
• The Pan-STARRS1 Surveys
• Global survey of star clusters in the Milky Way II. The catalogue of basic parameters
• On the Formation of Massive Stars
• From Molecular Cores to Planet-forming Disks: A SIRTF Legacy Program
• The Optical to Mid-Infrared Extinction Law Based on the APOGEE, Gaia DR2, Pan-STARRS1, SDSS, APASS, 2MASS and WISE Surveys
• On the fraction of star formation occurring in bound stellar clusters
• The statistical Analysis of Star Clusters
• Star cluster disruption by giant molecular clouds
• Dynamical mass segregation on a very short timescale
• Age determination for 269 $Gaia$ DR2 Open Clusters
• Using the minimum spanning tree to trace mass segregation
• Constraining the thermally-pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud
• The Initial Configuration of Young Stellar Clusters: A K-band Number Counts Analysis of the Surface Density of Stars
• A dynamical origin for early mass segregation in young star clusters
• Disruption time scales of star clusters in different galaxies
• The early dynamical evolution of cool, clumpy star clusters
• Lifetimes of tidally limited star clusters with different radii
• The Hyades tidal tails revealed by Gaia DR2
• ASteCA - Automated Stellar Cluster Analysis
• Galactic rotation in Gaia DR1
• The Arches Cluster - Evidence for a Truncated Mass Function?
• A Census of Young Stars and Brown Dwarfs in IC 348 and NGC 1333
• Evolving structures of star-forming clusters
• Probing disk properties with open clusters
• Wide Field CCD photometry around nine open clusters
• Global survey of star clusters in the Milky Way I. The pipeline and fundamental parameters in the second quadrant
• Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group
• Structure and mass segregation in Galactic stellar clusters
• Characterizing the dynamical state of star clusters from snapshots of their spatial distributions
• A near-infrared study of the NGC 7538 star forming region
• Star formation in young star cluster NGC 1893
• The Angular Momentum of Magnetized Molecular Cloud Cores: A 2D-3D Comparison
• The bound fraction of young star clusters
• Star formation efficiency as a function of metallicity: from star clusters to galaxies
• The expansion of massive young star clusters - observation meets theory
• Dynamics versus structure: breaking the density degeneracy in star formation
• Core Mass Function: The Role of Gravity
• Ground-based CCD astrometry with wide field imagers. III. [email protected] proper-motion catalog of the globular cluster omega Centauri
• A ring in a shell: the large-scale 6D structure of the Vela OB2 complex
• Diagnosing the Stellar Population and Tidal Structure of the Blanco1 Star Cluster
• Proper motions and membership probabilities of stars in the region of open cluster NGC 3766
• A highly efficient measure of mass segregation in star clusters
• Feedback regulated star formation: II. dual constraints on the SFE and the age spread of stars in massive clusters
• Mass functions and photometric binaries in nine open clusters
• A Wide-field Near- and Mid-Infrared Census of Young Stars in NGC 6334
• Global survey of star clusters in the Milky Way IV. 63 new open clusters detected by proper motions
• No evidence of mass segregation in the low mass Galactic globular cluster NGC 6101
• A multiwavelength study of embedded clusters in W5-east, NGC7538, S235, S252 and S254-S258
• Young stellar population and ongoing star formation in the HII complex Sh2-252
• The Gaia-ESO Survey: Properties of the intermediate age open cluster NGC 4815
• The stellar contents and star formation in the NGC 7538 region
• Star formation in W3 - AFGL333: Young stellar content, properties and roles of external feedback
• Imprints of feedback in young gasless clusters?
• WIYN Open Cluster Study : Wide-Field CCD Photometry of the Old Open Cluster NGC 6819
• Stellar cores in the Sh 2-305 H II region
• Structural studies of eight bright rimmed clouds in the southern hemisphere
• Improving \textsl{Gaia} parallax precision with a data-driven model of stars
• Proper motions and membership probabilities of stars in the region of globular cluster NGC 6809
• A proper motions study of the globular cluster NGC 3201
• Large scale star formation in Auriga region
• TIRCAM2: The TIFR Near Infrared Imaging Camera

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• Quest for the upcoming periastron passage of an episodic dust maker and particle accelerating colliding wind binary: WR 125
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