Astrophysical parameters of Galactic open clusters

Abstract

We present a catalogue of astrophysical data of 520 Galactic open clusters. These are the clusters, for which at least three most probable members (18 on average) could be identified in the ASCC-2.5, a catalogue of stars based on the Tycho-2 observations from the Hipparcos mission. We applied homogeneous methods and algorithms to determine angular sizes of cluster cores and coronae, heliocentric distances, mean proper motions, mean radial velocities and ages. For the first time we derive distances for 200 clusters, radial velocities for 94 clusters and determine ages of 196 clusters. This homogeneous new parameter set is compared with earlier determinations. In particular, we find that the angular sizes were systematically underestimated in the literature.

accepted for publication in Astronomy and Astrophysics, 11 pages, 8 figures (Fig.1 and Fig.B1 available as jpg files), the Catalogue of Open Cluster Data and the Open Cluster Diagrams Atlas will be available from the CDS

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• Asteroseismology of KIC 8263801:Is it a member of NGC 6866 and a red clump star?
• Time-series spectroscopy of two candidate double degenerates in the open cluster NGC 6633
• Near-Infrared Photometric Study of the Galactic Open Clusters NGC 1641 and NGC 2394 Based on 2MASS Data
• Photometric survey of marginally investigated open clusters: I. Basel 11b, King 14, Czernik 43
• Investigating Variable Stars in the Open Cluster NGC 1912 and Its Surrounding Field
• The evolutionary state of the chemically peculiar members of the open cluster NGC2516
• Orbital Parameters and Binary Properties of 37 FGK stars in the Cores of Open Clusters NGC 2516 and NGC 2422
• A search for peculiar stars in the open cluster Hogg 16
• Physical parameters of stellar population in star formation regions of galaxies
• Open cluster age calibration from colour-magnitude morphological indices using Gaia DR3 data
• Absolute dimensions of the early F-type eclipsing binary V506 Ophiuchi
• The interstellar medium towards the Ara OB1 region
• Searching for a Galactic component in the IceCube track-like neutrino events
• Modeling blue stragglers in young clusters
• The orbital elements and physical properties of the eclipsing binary BD+36 3317, a probable member of $\delta$ Lyr cluster
• BD+36 3317: An algol type eclipsing binary in Delta Lyrae cluster
• BV photometry of a possible open star cluster pair NGC 7031/NGC 7086
• Study of Eclipsing Binary and Multiple Systems in OB Associations V: MQ Cen in Crux OB1
• Global survey of star clusters in the Milky Way VIII. Cluster formation and evolution
• Is our Sun a Singleton?
• Catalog of Integrated-Light Star Cluster Light Curves in TESS
• Measuring Diffuse Interstellar Bands with cool stars. An improved line list to model the background stellar spectra
• The Implementation of Binned Kernel Density Estimation to Determine Open Clusters' Proper Motions: Validation of the Method
• Membership Probability via Control Field Colour-Magnitude Decontamination
• The young open cluster Trumpler 3
• Young star clusters in M31
• Isochrone-cloud fitting and asteroseismology of the Kepler open cluster NGC6866
• The OmegaWhite Survey for Short Period Variable Stars VI. Open Clusters
• New pulsating variable stars in the Stock 14 open cluster and surrounding fields
• New β Cephei variable in the Southern open cluster NGC 6200: ALS 3728
• Open clusters: their kinematics and metellicities