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Issue A&A Volume 397, Number 1, January I 2003 Page(s) 177 - 180 Section Stellar clusters and associations DOI 10.1051/0004-6361:20021479

A&A 397, 177-180 (2003)
DOI: 10.1051/0004-6361:20021479

A Catalogue of infrared star clusters and stellar groups

E. Bica¹, C. M. Dutra² and B. Barbuy<sup>2

1</sup>  Universidade Federal do Rio Grande do Sul, Instituto de Física, CP 15051, Porto Alegre 91501-970, RS, Brazil
²  Universidade de São Paulo, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, CP 3386, São Paulo 01060-970, SP, Brazil

(Received 20 August 2002 / Accepted 8 October 2002 )

Abstract
We compiled a catalogue of infrared star clusters in the Galaxy, which are most of them embedded. It condenses the growing literature information. We also include in the sample infrared stellar groups which are less dense than star clusters, such as those embedded in the dark clouds Taurus-Auriga and Chamaleon I. We provide galactic and equatorial coordinates, angular dimensions, different designations and related objects such as nebulae. A total of 189 infrared clusters and 87 embedded stellar groups are included. A fraction of 25% of the embedded clusters are projected close to each other in pair or triplet systems, indicating that multiplicity plays an important role in star cluster formation.

Key words: Galaxy: open clusters and associations: general -- catalogs -- infrared: general

Offprint request: C. M. Dutra, dutra@astro.iag.usp.br

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