Spectroscopic study of the N159/N160 complex in the Large Magellanic Cloud

Details Spectroscopic study of the N159/N160 complex in the Large Magellanic Cloud Spectroscopic study of the N159/N160 complex in the Large Magellanic Cloud

2009-07-06

arxiv.org/abs/0907.1033v1

Astron.J.138:510-516, 2009

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

36 pages, 24 figures (127 spectra mostly OB stars, 4 field images). Published in The Astronomical Journal

Scientific paper

10.1088/0004-6256/138/2/510

We present a spectroscopic study of the N159/N160 massive-star forming region south of 30 Doradus in the Large Magellanic Cloud, classifying a total of 189 stars in the field of the complex. Most of them belong to O and early B spectral classes; we have also found some uncommon and very interesting spectra, including members of the Onfp class, a Be P Cygni star, and some possible multiple systems. Using spectral types as broad indicators of evolutionary stages, we considered the evolutionary status of the region as a whole. We infer that massive stars at different evolutionary stages are present throughout the region, favoring the idea of a common time for the origin of recent star formation in the N159/N160 complex as a whole, while sequential star formation at different rates is probably present in several subregions.

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