A Near-Infrared Narrow-band Imaging Survey for Massive Stars in Cl 1806-20

Details A Near-Infrared Narrow-band Imaging Survey for Massive Stars in Cl 1806-20 A Near-Infrared Narrow-band Imaging Survey for Massive Stars in Cl 1806-20

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545504e&link_type=abstract

American Astronomical Society, AAS Meeting #215, #455.04; Bulletin of the American Astronomical Society, Vol. 42, p.473

Astronomy and Astrophysics

Astronomy

Scientific paper

We survey the environment of the Soft Gamma-Ray Repeater SGR 1806-20 using near-infrared narrow-band imaging to search for Br gamma features indicative of massive stars. Using this technique, we successfully detect previously identified massive stars in Cl 1806-20, the established natal star cluster of SGR 1806-20. We detect no new emission line stars, establishing a firm upper limit on the number of Wolf Rayets and Luminous Blue Variables in the cluster. We also present spectroscopic evidence for emission-line variability in LBV 1806-20. Our results highlight the advantages and disadvantages of using narrow-band imaging to search for massive stars.

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