Near-Infrared Selected Brown Dwarf Candidates in OMC2/OMC3

Details Near-Infrared Selected Brown Dwarf Candidates in OMC2/OMC3 Near-Infrared Selected Brown Dwarf Candidates in OMC2/OMC3

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.9317p&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #93.17; Bulletin of the American Astronomical Society, Vol. 34, p.1261

Astronomy and Astrophysics

Astronomy

Scientific paper

Young cluster regions are an ideal environment for identifying and studying the distribution of sub-stellar objects that populate the low mass end of the initial mass function. At extinctions less than A_V = 10, brown dwarfs have been identified in wide-field (20' x 20'), deep J-, H- and K-band images of one such cluster, the Orion Molecular Cloud 2 and 3 (OMC2/OMC3) region. We obtained these images with SQIID on the 2.1 meter telescope at Kitt Peak National Observatory. Potential brown dwarfs are selected by their positions on an H versus J-H color-magnitude diagram assuming an age of 1 Myr. When these candidates are then plotted on a color-color diagram, 52 candidates show non-photospheric colors similar to those found by Muench et al. (2001) in the Trapezium cluster. These colors may result from thermal emission originating in circumstellar disks surrounding the young brown dwarfs.

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