SIMBAD references

1995A&A...295...63C - Astronomy and Astrophysics, volume 295, 63-74 (1995/3-1)

On the evolutionary status of the LMC cluster NGC 2004.

CALOI V. and CASSATELLA A.

Abstract (from CDS):

IUE observations of hot stars in the LMC young cluster NGC 2004 have been used to derive effective temperatures and bolometric luminosities well below the turn-off. No star is found close to the upper main sequence. Massive stars appear arranged on a vertical sequence at temperatures much lower than those of the ZAMS. Among the fainter objects, three lie on the ZAMS, and some may be in a pre-MS phase. The presence of red giants at luminosities much lower than that of the evolved blue giants, together with stars still approaching the main sequence, suggests a star formation process much more continuous in time than generally suspected.

Abstract Copyright:

Journal keyword(s): clusters: globular: NGC 2004 (LMC) - Magellanic Clouds - stars: evolution - UV: stars - galaxies: star clusters

Status at CDS:  

CDS comments: object B1 not BJ 201

Simbad objects: 37

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