A Catalog of Young Stellar Groups and Clusters Within 1kpc of the Sun

Details A Catalog of Young Stellar Groups and Clusters Within 1kpc of the Sun A Catalog of Young Stellar Groups and Clusters Within 1kpc of the Sun

2003-07-29

arxiv.org/abs/astro-ph/0307510v1

Astron.J.126:1916,2003

Astronomy and Astrophysics

Astrophysics

16 pages, 2 tables, 2 figures. To appear in Astronomical Journal

Scientific paper

10.1086/377623

We present a catalog of near-infrared surveys of young (<= a few 10^6 yr) stellar groups and clusters within 1 kpc from the Sun, based on an extensive search of the literature from the past ten years. We find 143 surveys from 69 published articles, covering 73 different regions. The number distribution of stars in a region has a median of 28 and a mean of 100. About 80% of the stars are in clusters with at least 100 members. By a rough classification of the groups and clusters based on the number of their associated stars, we show that most of the stars form in large clusters. The spatial distribution of cataloged regions in the Galactic plane shows a relative lack of observed stellar groups and clusters in the range 270 deg < l < 60 deg of Galactic longitude, reflecting our location between the Local and Sagittarius arms. This compilation is intended as a useful resource for future studies of nearby young regions of multiple star formation.

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