Optical Spectroscopy of Candidates of Young Stellar Objects in NGC 1333

Details Optical Spectroscopy of Candidates of Young Stellar Objects in NGC 1333 Optical Spectroscopy of Candidates of Young Stellar Objects in NGC 1333

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pasj...62.1149i&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.62, No.5, pp.1149-1154

Astronomy and Astrophysics

Astronomy

1

Stars: Formation, Stars: Low-Mass, Brown Dwarfs, Stars: Pre-Main-Sequence

Scientific paper

We carried out low-resolution optical spectroscopy of 14 low-luminosity young stellar object (YSO) candidates in the NGC 1333 cluster. These objects were previously identified by a near-infrared imaging survey. Eleven objects were confirmed to be YSOs by the Hα line emission. The strengths of the Hα emission are correlated with the near-infrared excesses of the objects. The spectral types of all YSOs are estimated to be M-type, indicative of low mass. Comparisons of the results of our spectroscopic observations and previous photometric observations with evolutionary tracks on the HR diagram suggest two objects to be young brown dwarfs.

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