New ultra-cool dwarfs from SDSS and 2MASS
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https://b2find.eudat.eu/dataset/f283846f-9b7d-5d6f-906b-a170e348a98b
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We try to identify ultra-cool dwarfs from the seventh Data Release of the Sloan Digital Sky Survey (SDSS DR7) with SDSS i-z and r-z colors. We also obtain proper motion data...
