Meeting the cool neighbors. IV. 2mass 1835+32, a newly discovered M8.5 dwarf within 6 parsecs of the sun

被引：59

作者：

Reid, IN

Cruz, KL

Laurie, SP

Liebert, J

Dahn, CC

Harris, HC

Guetter, HH

Stone, RC

Canzian, B

Luginbuhl, CB

Levine, SE

Monet, AKB

Monet, DG

机构：

[1] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[2] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[3] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[4] USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA

来源：

ASTRONOMICAL JOURNAL | 2003年 / 125卷 / 01期

关键词：

galaxy : stellar content; stars; low-mass; brown dwarfs; stars : luminosity function; mass function;

D O I：

10.1086/344946

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present observations of 2MASSI J1835379+ 325954, a previously unrecognized late- type M dwarf within 6 pc of the Sun. Identified based analysis of the Two Micron All Sky Survey optical spectroscopy and photometry indicate a spectral type of M8.5. The star has a proper motion of 0."759 yr(-1) and is clearly visible on both POSS I and POSS II photographic plate material, but it may have escaped detection in previous surveys through its proximity to the Galactic plane. We discuss potential implications for the completeness of the local stellar census.

引用

页码：354 / 358

页数：5

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