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A Gaia based analysis of open cluster Berkeley 27

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dc.contributor.author Sariya, Devesh P
dc.contributor.author Jiang, Ing-Guey
dc.contributor.author Bisht, D
dc.contributor.author Yadav, R. K. S
dc.contributor.author Rangwal, Geeta
dc.date.accessioned 2023-02-03T13:37:24Z
dc.date.available 2023-02-03T13:37:24Z
dc.date.issued 2023-01
dc.identifier.citation New Astronomy, Vol. 98, 101938 en_US
dc.identifier.issn 1384-1092
dc.identifier.uri http://hdl.handle.net/2248/8149
dc.description Restricted Access en_US
dc.description.abstract In this paper, we have used the Gaia’s Data Release-3 (DR3) data to study an intermediate-age open cluster Berkeley 27 (Be 27). A total of 131 most probable cluster members are picked within the cluster’s radius based on the membership probability (>80%). The cluster’s radius was estimated as 3.74 arcmin. The mean proper motion (PM) of Be 27 was determined to be (𝜇𝛼 𝑐𝑜𝑠𝛿, 𝜇𝛿 )= (−1.076 ± 0.008, 0.152 ± 0.007) mas yr−1. The blue straggler stars (BSS) of the cluster were found to be located in the central region. Theoretical isochrones of metallicity Z𝑚𝑒𝑡𝑎𝑙 = 0.008 were compared to the color-magnitude diagram (CMD) of Be 27. As a result, a heliocentric distance of 4.8 ± 0.2 kpc and log (age) = 9.36 ± 0.03 were determined for Be 27. The Galactic orbits are derived using the Galactic potential model which demonstrate that Be 27 follows a circular path around the Galactic center. The cluster does not seem to be affected much by the tidal forces from the Galactic thin disk en_US
dc.language.iso en en_US
dc.publisher Elsevier B.V en_US
dc.relation.uri https://doi.org/10.1016/j.newast.2022.101938
dc.rights © 2022 Elsevier B.V.
dc.subject Hertzsprung Russell diagram en_US
dc.subject Astrometry en_US
dc.subject Orbits en_US
dc.subject Open star clusters en_US
dc.title A Gaia based analysis of open cluster Berkeley 27 en_US
dc.type Article en_US


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