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Astrophysics > Solar and Stellar Astrophysics

arXiv:1607.00027 (astro-ph)
[Submitted on 30 Jun 2016]

Title:Open clusters and associations in the Gaia era

Authors:E. Moraux
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Abstract:Open clusters and associations are groups of young stars, respectively bound and unbound, that share the same origin and disperse over time into the galactic field. As such, their formation and evolution are the key to understand the origin and properties of galactic stellar populations. Moreover, since their members have about the same age, they are ideal laboratories to study the properties of young stars and constrain stellar evolution theories.
In this contribution, I present our current knowledge on open clusters and associations. I focus on the methods used to derive the statistical properties (IMF, spatial distribution, IMF) of young stars and briefly discuss how they depend on the environment. I then describe how open clusters can be used as probes to investigate the structure, dynamics and chemical composition of the Milky Way. I conclude by presenting the Gaia mission and discuss how it will revolutionize this field of research.
Comments: To appear in EES2015 - Stellar Clusters: benchmarks of stellar physics and galactic evolution, Eds. E. Moraux, Y. Lebreton and C. Charbonnel, EAS Publications Series. arXiv admin note: text overlap with arXiv:0911.1459, arXiv:1512.03658, arXiv:1512.06854, arXiv:1505.08027, arXiv:1307.0569, arXiv:astro-ph/0509804, arXiv:1511.08884, arXiv:1602.07121, arXiv:1104.2182 by other authors
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:1607.00027 [astro-ph.SR]
  (or arXiv:1607.00027v1 [astro-ph.SR] for this version)
  https://doi.org/10.48550/arXiv.1607.00027
Related DOI: https://doi.org/10.1051/eas/1680004

Submission history

From: Estelle Moraux [view email]
[v1] Thu, 30 Jun 2016 20:31:35 UTC (7,425 KB)
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