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The Solar Neighborhood. XXV. Discovery of New Proper Motion Stars with 0.40 sec/yr > mu > or = 0.18 sec/yr Between Declinations -47 deg and 00 degWe present 2817 new southern proper motion systems with 0.40 sec/yr > mu > or = 0.18 sec/yr and declination between 47 deg and 00 deg. This is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion searches of the southern sky. We use the same photometric relations as previous searches to provide distance estimates based on the assumption that the objects are single main-sequence stars. We find 79 new red dwarf systems predicted to be within 25 pc, including a few new components of previously known systems. Two systems--SCR 1731-2452 at 9.5 pc and SCR 1746-3214 at 9.9 pc--are anticipated to be within 10 pc. We also find 23 new white dwarf (WD) candidates with distance estimates of 15-66 pc, as well as 360 new red subdwarf candidates. With this search, we complete the SCR sweep of the southern sky for stars with mu > or = 0.18 sec/yr and R(sub 59F) < or = 16.5, resulting in a total of 5042 objects in 4724 previously unreported proper motion systems. Here we provide selected comprehensive lists from our SCR proper motion search to date, including 152 red dwarf systems estimated to be within 25 pc (9 within 10 pc), 46 WDs (10 within 25 pc), and 598 subdwarf candidates. The results of this search suggest that there are more nearby systems to be found at fainter magnitudes and lower proper motion limits than those probed so far.
Document ID
20120009945
Document Type
Reprint (Version printed in journal)
Authors
Boyd, Mark R. (Georgia Inst. of Tech. Atlanta, GA, United States)
Winters, Jennifer G. (Georgia State Univ. Atlanta, GA, United States)
Henry, Todd J. (Georgia State Univ. Atlanta, GA, United States)
Jao, Wei-Chun (Georgia State Univ. Atlanta, GA, United States)
Finch, Charlie T. (Naval Observatory Washington, DC, United States)
Subasavage, John P. (Cerro Tololo Inter-American Observatory La Serena, Chile)
Hambly, Nigel C. (Edinburgh Univ. United Kingdom)
Date Acquired
August 25, 2013
Publication Date
July 1, 2011
Subject Category
Astronomy
Report/Patent Number
AD-A547242
Funding Number(s)
CONTRACT_GRANT: AST-09-08402
CONTRACT_GRANT: NNX08BA95G
Distribution Limits
Public
Copyright
Other
Keywords
LOW MASS STARS
SOLAR NEIGHBORHOOD
ASTROMETRY