In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2
V. Pavlík
Detaily:
Rok, strany: 2020, 456 - 460
Jazyk: eng
Kľúčové slová:
methods: numerical, data analysis, star clusters: individual (ONC), stars: formation, binaries
URL originálneho zdroja: http://www.astro.sk/caosp/Eedition/Abstracts/2020/Vol_50/No_2/pp456-460_abstract.html
O článku:
Observational results of young star-forming regions suggest that star clusters are completely mass segregated at birth. As a star cluster evolves dynamically, these initial conditions are gradually lost. For star clusters with single stars only and a canonical IMF, it has been suggested that traces of these initial conditions vanish at τv between 3 and 3.5 half-mass relaxation times. Here, by means of numerical models, we investigate the role of the primordial binary population on the loss of primordial mass segregation. We found that τv does not depend on the binary star distribution, yielding 3 < τv / trh < 3.5. We also conclude that the completely mass segregated clusters, even with binaries, are more compatible with the present-day ONC than the non-segregated ones.
Ako citovať:
ISO 690:
Pavlík, V. 2020. Primordial mass segregation of star clusters: The role of binary stars. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no.2, pp. 456-460. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.2.456
APA:
Pavlík, V. (2020). Primordial mass segregation of star clusters: The role of binary stars. Contributions of the Astronomical Observatory Skalnaté Pleso, 50(2), 456-460. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.2.456
O vydaní:
Vydavateľ: Astronomical Institute, Slovak Academy of Sciences
Publikované: 1. 3. 2020
Verejná licencia:
