Ultra-cool dwarfs: new discoveries, proper motions, and improved spectral typing from SDSS and 2MASS photometric colors

Publisher: Edp Sciences

E-ISSN: 1432-0746|497|2|619-633

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.497, Iss.2, 2009-04, pp. : 619-633

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