K-band Spectroscopy of Deeply Embedded, Young OB Stars

Details K-band Spectroscopy of Deeply Embedded, Young OB Stars K-band Spectroscopy of Deeply Embedded, Young OB Stars

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..388..143b&link_type=abstract

Mass Loss from Stars and the Evolution of Stellar Clusters ASP Conference Series, Vol. 388, proceedings of the conference held 2

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained high resolution (R = 10 000) K-band spectra of candidate young massive stars deeply embedded in high-mass star-forming regions. These objects were selected from a near-infrared survey of 44 regions of high-mass star-formation tep{Kaper}. In these clusters, 38 OB stars are identified whose K-band spectra are dominated by photospheric emission. In almost all those stars, the K-band spectra are indistinguishable from field stars. However, in some stars the profile of the Brγ line is different (less deep, or absent) from those of the O field stars. One of the explanations of these profiles might be an enhanced mass-loss.

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