Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 443, Issue 3, Pages 2327-2341Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stu1295
Keywords
catalogues; proper motions; binaries: general; brown dwarfs; stars: low-mass
Categories
Funding
- Science & Technology Facilities Research Council (STFC) of the UK
- STFC [ST/J001333/1]
- Marie Curie 7th European Community Framework Programme [247593]
- CNPq [PQ306775/2009-3]
- FONDECYT [3130520]
- Nuffield Foundation
- STFC [ST/G002622/1, ST/L001403/1, ST/J001333/1, ST/F007280/1, ST/J501050/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/F007280/1, ST/J001333/1, ST/J501050/1, ST/L001403/1, ST/G002622/1] Funding Source: researchfish
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The UKIDSS Galactic Plane Survey (GPS) began in 2005 as a seven year effort to survey similar to 1800 deg(2) of the northern Galactic plane in the J, H, and K passbands. The survey included a second epoch of K-band data, with a baseline of two to eight years, for the purpose of investigating variability and measuring proper motions. We have calculated proper motions for 167 million sources in a 900 deg(2) area located at l > 60 degrees. in order to search for new high proper motion objects. Visual inspection has verified 617 high proper motion sources (>200 mas yr(-1)) down to K = 17, of which 153 are new discoveries. Among these, we have a new spectroscopically confirmed T5 dwarf, an additional T dwarf with estimated type T6, 13 new L dwarf candidates, and two new common proper motion systems containing ultracool dwarf candidates. We provide improved proper motions for an additional 12 high proper motion stars that were independently discovered in the WISE data set during the course of this investigation.
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