Distances of nearby ultracool dwarfs (Phan-Bao+, 2006)

Details Distances of nearby ultracool dwarfs (Phan-Bao+, 2006) Distances of nearby ultracool dwarfs (Phan-Bao+, 2006)

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat..34460515p&link_type=abstract

VizieR On-line Data Catalog: J/A+A/446/515. Originally published in: 2006A&A...446..515P

Computer Science

Stars: Nearby, Stars: M-Type, Photometry: Infrared, Stars: Distances

Scientific paper

We present updated results of spectroscopic follow-up observations of a sample of 45 M dwarf candidates identified by Phan-Bao et al. (2003, Cat. ) based on the DENIS photometry and proper motion measurements. Forty one of these are nearby late-M dwarfs (d<30pc) with spectral types ranging from M5.0 to M8.5 computed from the spectral indices. One contaminant is probably an F-G main sequence star reddened by intervening dust and three stars that were not observed have previous classifications as M dwarfs in the literature. In this paper, we identify three M7.5, five M8.0, one M8.5 dwarf and confirm two new M8.0 dwarf members of the 25pc volume.
(2 data files).

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