Dynamical evolution modeling of the Collinder 135 & UBC 7 binary star cluster. Issue Volume 16:Issue S362(2020) (June 2020)

• Record Type: Journal Article
• Authors: Ishchenko, Marina; Berczik, Peter; Kharchenko, Nina
• Editors: Bisikalo, Dmitry; Wiebe, Dmitri; Boily, Christian
• Is Part Of: Proceedings of the International Astronomical Union. Volume 16:Issue S362(2020)
• Page Start: 128
• Page End: 133
• Publication Date: 2020-06
• Subjects: galaxies: star clusters -- methods: n-body simulations; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921322001661
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: The purpose of the present work is a detailed investigation of the dynamical evolution of Collinder 135 and UBC 7 star clusters. We present a set of dynamical numerical simulations using realistic star cluster -body modeling technique with the forward integration of the star-by-star cluster models to the present day, based on best-available 3D coordinates and velocities obtained from the latest Gaia EDR3 data release. We have established that Collinder 135 and UBC 7 are probably a binary star cluster and have common origin. We carried out a full star-by-star N-body simulation of the stellar population of both clusters using the new algorithm of Single Stellar Evolution and performed a comparison of the results obtained in the observational data (like cumulative number counts), which showed a fairly good agreement.