Searching for emission line and OB stars in Cl 1806-20 using a NIR narrow-band technique

Details Searching for emission line and OB stars in Cl 1806-20 using a NIR narrow-band technique Searching for emission line and OB stars in Cl 1806-20 using a NIR narrow-band technique

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..272..606e&link_type=abstract

Active OB stars: structure, evolution, mass loss, and critical limits, Proceedings of the International Astronomical Union, IAU

Astronomy and Astrophysics

Astronomy

Stars: Emission-Line, Open Clusters And Associations: General

Scientific paper

We survey the environment of Cl 1806-20 using near-infrared narrow-band imaging to search for Brγ features indicative of evolved massive stars. Using this technique, we successfully detect previously identified massive stars in the cluster. We detect no new emission line stars, establishing a firm upper limit on the number of Wolf Rayets and Luminous Blue Variables; however, we do find several candidate OB supergiants, which likely represent the bulk of the heretofore undiscovered massive star population.

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