Discovery of a nearby M9 dwarf
/ Authors
N. Phan-Bao, M. Bessell, Eric Martin, Eric Martin, G. Simon, J. Guibert, T. Forveille, X. Delfosse, F. Crifo, N. Epchtein
and 2 more authors
/ Abstract
We report the discovery of a new M9.0 dwarf at only 8.2 pc, which we identified in our search for nearby ultracool dwarf (I−J≥ 3.0, later than M8.0) in the DENIS data base. We measure a very high proper motion of 2.5 arcsec yr−1. The PC3 index measured from its low-resolution spectrum gives a spectrophotometric distance of 8.2 pc. This makes it the third closest M9.0 dwarf.
Journal: Monthly Notices of the Royal Astronomical Society