Open AccessDiscovery of a nearby M9 dwarf
Author(s) -
PhanBao N.,
Bessell M. S.,
Martín E. L.,
Simon G.,
Guibert J.,
Forveille T.,
Delfosse X.,
Crifo F.,
Epchtein N.,
Wood P.,
Tajahmady F.
Publication year - 2006
Publication title -
monthly notices of the royal astronomical society: letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.067
H-Index - 122
eISSN - 1745-3933
pISSN - 1745-3925
DOI - 10.1111/j.1745-3933.2005.00128.x
Subject(s) - proper motion , brown dwarf , physics , measure (data warehouse) , astrophysics , high resolution , astronomy , computer science , remote sensing , stars , geology , data mining
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.