SIMBAD references

2018AJ....155..190H - Astron. J., 155, 190-190 (2018/May-0)

Stellar parameters and radial velocities of hot stars in the Carina Nebula.


Abstract (from CDS):

The Carina Nebula is an active star-forming region in the southern sky that is of particular interest due to the presence of a large number of massive stars in a wide array of evolutionary stages. Here, we present the results of the spectroscopic analysis of 82 B-type stars and 33 O-type stars that were observed in 2013 and 2014. For 82 B-type stars without line blending, we fit model spectra from the Tlusty BSTAR2006 grid to the observed profiles of Hγ and He λλ4026, 4388, and 4471 to measure the effective temperatures, surface gravities, and projected rotational velocities. We also measure the masses, ages, radii, bolometric luminosities, and distances of these stars. From the radial velocities measured in our sample, we find 31 single lined spectroscopic binary candidates. We find a high dispersion of radial velocities among our sample stars, and we argue that the Carina Nebula stellar population has not yet relaxed and become virialized.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: spectroscopic - open clusters and associations: individual: Carina - stars: fundamental parameters - stars: massive

VizieR on-line data: <Available at CDS (J/AJ/155/190): table1.dat table2.dat table3.dat table4.dat table5.dat table6.dat>

Simbad objects: 136

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