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Possible connection between P Cygni and neighboring open clusters

Published online by Cambridge University Press:  11 March 2020

Sopia Beradze Open the ORCID record for Sopia Beradze [Opens in a new window]  and
Nino Kochiashvili
Sopia Beradze
Affiliation:
Abastumani Astrophysical Observatory, Ilia State University Samtskhe-Javakheti State University
Nino Kochiashvili
Affiliation:
Abastumani Astrophysical Observatory, Ilia State University
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Abstract

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According to earlier investigations by Turner and co-authors, P Cygni could be a member of a hypothetical, sparsely populated open cluster. The star lies near the east boundary of this hypothetical cluster. There is another known open cluster, IC 4996, in the vicinity of P Cygni. The same authors believe that the above mentioned two clusters are connected to each other and they could represent a double cluster. As P Cygni is a hypergiant and consequently has very strong and variable stellar wind, so a cluster membership can enable us to determine the age, distance, and reddening of the star relatively precisely. We used new data of different catalogues, for example, PPMXL and Gaia and tried to resolve the problem.

Keywords

Luminous Blue Variable Stars (LBV)P Cygni
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S351: Star Clusters: From the Milky Way to the Early Universe , May 2019 , pp. 181 - 184
Copyright
© International Astronomical Union 2020

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