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The Solar Neighborhood. XVIII. Discovery of New Proper-Motion Stars with 0.40' yr-1> μ ≥ 0.18' yr-1between Declinations -90° and -47°

Authors :
Todd J. Henry
John P. Subasavage
Wei-Chun Jao
Charlie T. Finch
Nigel Hambly
Source :
The Astronomical Journal. 133:2898-2907
Publication Year :
2007
Publisher :
American Astronomical Society, 2007.

Abstract

We report 1606 new proper motion systems in the southern sky (declinations -90 degrees to -47 degrees with 0.40 arcsec yr^-1 > mu >= 0.18 yr^-1. This effort is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion search to lower proper motions than reported in Papers VIII, X, XII, and XV in this series. Distance estimates are presented for the new systems, assuming that all stars are on the main sequence. We find that 31 systems are within 25 pc, including two systems -- SCR 0838-5855 and SCR 1826-6542 -- we anticipate to be within 10 pc. These new discoveries constitute a more than ten-fold increase in new systems found in the same region of sky searched for systems with mu >= 0.40 arcsec yr^-1, suggesting a happy hunting ground for new nearby slower proper motion systems in the region just north (declinations -47 degrees to 0 degrees, much of which has not been rigorously searched during previous efforts.

Details

ISSN :
15383881 and 00046256
Volume :
133
Database :
OpenAIRE
Journal :
The Astronomical Journal
Accession number :
edsair.doi...........efaf88aae7d0ac76076d453ec381694f
Full Text :
https://doi.org/10.1086/518164