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The stellar content of two OB associations in the LMC - LH 117 (NGC 2122) and LH 118

Massey, Philip and Garmany, Catharine D. and Silkey, Mariabeth and DeGioia-Eastwood, Kathleen (1989) The stellar content of two OB associations in the LMC - LH 117 (NGC 2122) and LH 118. The Astronomical Journal, 97 (1). pp. 107-130. ISSN 0004-6256


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Publisher’s or external URL: http://adsabs.harvard.edu/abs/1989AJ.....97..107M


Photometry for stars in two adjacent OB associations in the LMC, numbers 117 and 118 in the list of Lucke and Hodge (1970), is presented. Each association contains about 50 stars with mass larger than 10 solar, including two newly confirmed red supergiants. Most of the stars in these associations are in the first half of their lives on the main sequence. However, the two red supergiants and a B2 I stars are of lower mass than several of the unevolved, more massive members of the associations, and must have formed six to 10 million yr earlier than most of the association members. The initial mass function of the associations has a slope of - 1.8, similar to the one observed for massive stars near the sun.

Item Type: Article
Publisher’s Statement: © 1998 The American Astronomical Society. Published in The Astronomical Journal.
ID number or DOI: 10.1086/114961
Keywords: B Stars; Hertzsprung-Russell Diagram; magellanic clouds; O Stars; Star Clusters; Stellar Color; Stellar Mass; STELLAR spectra; SUPERGIANT stars; Ubv Spectra
Subjects: Q Science > QB Astronomy
NAU Depositing Author Academic Status: Faculty/Staff
Department/Unit: College of Engineering, Forestry, and Natural Science > Physics and Astronomy
Date Deposited: 16 Oct 2015 20:59
URI: http://openknowledge.nau.edu/id/eprint/1344

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