SIMBAD references

2019AJ....158...46B - Astron. J., 158, 46-46 (2019/July-0)

The G305 star-forming region. I. Newly classified hot stars.

BORISSOVA J., ROMAN-LOPES A., COVEY K., MEDINA N., KURTEV R., ROMAN-ZUNIGA C., KUHN M.A., CONTRERAS PENA C., LUCAS P., RAMIREZ ALEGRIA S., MINNITI D., KOUNKEL M., STRINGFELLOW G., BARBA R.H. and SUAREZ G.

Abstract (from CDS):

The relatively nearby star-forming complex G305 is one of the most luminous H II regions in the Galaxy, and it contains several sites and epochs of star formation. Using a combination of near-infrared photometry from "Vista Variables in Via Lactea" ESO Large Public Survey, SDSS-IV APOGEE-2 spectra, and Gaia DR2 photometry and astrometry, we report on 29 OB type, Wolf-Rayet, and emission-line stars, 18 of which are newly classified. Most of these hot stars belongs to the main sequence, although some stars of class I are also proposed. The mean radial velocity is RV = -41.8 kms–1. The average spectroscopic distance is 3.2 ± 1.6 kpc, while the Gaia DR2 average distance is 3.7 ± 1.8 kpc. Eight objects show light-curve variations with amplitudes greater than 0.5 mag in the KS band.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Galaxy: stellar content - infrared: stars - stars: massive - stars: Wolf-Rayet - stars: variables: general

Status in Simbad:  being processed

Simbad objects: 28

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2019.09.23-09:56:39

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