Southern infrared proper motion survey. II. A sample of low mass stars with μ ≥ 0.1″/yr

N. R. Deacon, N. C. Hambly

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Abstract

We present details of the second part of the Southern Infrared Proper Motion Survey (SIPS). Here accurate relative astrometry allows us to reduce the minimum proper motion to 0.1 arcsec per year. This yields 6904 objects with proper motions between our minum cut and half an arcsecond a year, A small overspill sample with proper motions greater than this is also included. We examine our sample to identify interesting individual objects such as common proper motion binaries, potential L dwarfs and candidate nearby stars. Finally we show our survey is incomplete due to many factors, factors which we will take into account when simulating these survey results in the next paper in this series.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalAstronomy & Astrophysics
Volume468
Issue number1
Early online date19 Mar 2007
DOIs
Publication statusPublished - 2 Jun 2007
Externally publishedYes

Keywords

  • Astrometry
  • Stars: low mass, brown dwarfs

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