EDP Sciences
Free access
Volume 404, Number 1, June II 2003
Page(s) 223 - 232
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20030486

A&A 404, 223-232 (2003)
DOI: 10.1051/0004-6361:20030486

New infrared star clusters in the Northern and Equatorial Milky Way with 2MASS

E. Bica1, C. M. Dutra2, J. Soares1 and B. Barbuy2

1  Universidade Federal do Rio Grande do Sul, Instituto de Física, CP 15051, Porto Alegre, RS 91501-970, Brazil
2  Universidade de São Paulo, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Rua do Matão 1226, Cid. Universitária, São Paulo, SP 05508-900, Brazil

(Received 21 January 2003 / Accepted 25 March 2003)

We carried out a survey of infrared star clusters and stellar groups on the 2MASS  J, H and $K_{\rm s}$ all-sky release Atlas in the Northern and Equatorial Milky Way ( $350^{\circ} < \ell < 360 ^{\circ}$, $0^{\circ} < \ell < 230 ^{\circ}$). The search in this zone complements that in the Southern Milky Way (Dutra et al. 2003a). The method concentrates efforts on the directions of known optical and radio nebulae. The present study provides 167 new infrared clusters, stellar groups and candidates. Combining the two studies for the whole Milky Way, 346 infrared clusters, stellar groups and candidates were discovered, whereas 315 objects were previously known. They constitute an important new sample for future detailed studies.

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

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

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