The very massive star HDE269676 and its components

Details The very massive star HDE269676 and its components The very massive star HDE269676 and its components

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244...64h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 1, April 1991, p. 64-68.

Astronomy and Astrophysics

Astrophysics

13

Early Stars, Magellanic Clouds, Star Clusters, Stellar Luminosity, Stellar Mass, Astronomical Spectroscopy, Faint Object Camera, O Stars, Point Spread Functions, Supergiant Stars, Telescopes

Scientific paper

It is shown that one of the most luminous stars of the LMC, HDE269676, is in fact a massive star cluster. On the basis of observations with the ESO New Technology Telescope (NTT) the main components of the cluster are classified and it is shown that there are several O type stars in HDE269676 instead of the one or two previously known. This is interesting for the initial mass function in the LMC and implies that the number of O type stars in the LMC is generally underestimated. The most massive star of the system being about a factor three less luminous than previously estimated is a super-giant O5f with a zero age main sequence mass of about 80 solar.

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