Discovery of a nearby M9 dwarf
arXiv:astro-ph/0510639 · doi:10.1111/j.1745-3933.2005.00128.x
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 database. We measure a very high proper motion of 2.5 arc-sec/yr. 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.
revised version, accepted by MNRAS Letters