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Title: THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -47{sup 0} AND 00{sup 0}

Abstract

We present 2817 new southern proper motion systems with 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} and declination between -47{sup 0} and 00{sup 0}. 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} {>=} 0.''18 yr{sup -1} and R{sub 59F} {<=} 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 withinmore » 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.« less

Authors:
 [1]; ; ;  [2];  [3];  [4];  [5]
  1. Department of Mathematics, Georgia Institute of Technology, Atlanta, GA 30332 (United States)
  2. Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30302-4106 (United States)
  3. U.S. Naval Observatory, Washington, DC 20392-5420 (United States)
  4. Cerro Tololo Inter-American Observatory, La Serena (Chile)
  5. Scottish Universities Physics Alliance, Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom)
Publication Date:
OSTI Identifier:
21583073
Resource Type:
Journal Article
Journal Name:
Astronomical Journal (New York, N.Y. Online)
Additional Journal Information:
Journal Volume: 142; Journal Issue: 1; Other Information: DOI: 10.1088/0004-6256/142/1/10; Journal ID: ISSN 1538-3881
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; DISTANCE; MAIN SEQUENCE STARS; MASS; PROPER MOTION; STATISTICS; WHITE DWARF STARS; DWARF STARS; MATHEMATICS; MOTION; STARS

Citation Formats

Boyd, Mark R., Winters, Jennifer G., Henry, Todd J., Jao, Wei-Chun, Finch, Charlie T., Subasavage, John P., and Hambly, Nigel C., E-mail: boyd@chara.gsu.edu, E-mail: winters@chara.gsu.edu, E-mail: thenry@chara.gsu.edu, E-mail: jao@chara.gsu.edu, E-mail: finch@usno.navy.mil, E-mail: jsubasavage@ctio.noao.edu, E-mail: nch@roe.ac.uk. THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -47{sup 0} AND 00{sup 0}. United States: N. p., 2011. Web. doi:10.1088/0004-6256/142/1/10.
Boyd, Mark R., Winters, Jennifer G., Henry, Todd J., Jao, Wei-Chun, Finch, Charlie T., Subasavage, John P., & Hambly, Nigel C., E-mail: boyd@chara.gsu.edu, E-mail: winters@chara.gsu.edu, E-mail: thenry@chara.gsu.edu, E-mail: jao@chara.gsu.edu, E-mail: finch@usno.navy.mil, E-mail: jsubasavage@ctio.noao.edu, E-mail: nch@roe.ac.uk. THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -47{sup 0} AND 00{sup 0}. United States. doi:10.1088/0004-6256/142/1/10.
Boyd, Mark R., Winters, Jennifer G., Henry, Todd J., Jao, Wei-Chun, Finch, Charlie T., Subasavage, John P., and Hambly, Nigel C., E-mail: boyd@chara.gsu.edu, E-mail: winters@chara.gsu.edu, E-mail: thenry@chara.gsu.edu, E-mail: jao@chara.gsu.edu, E-mail: finch@usno.navy.mil, E-mail: jsubasavage@ctio.noao.edu, E-mail: nch@roe.ac.uk. Fri . "THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -47{sup 0} AND 00{sup 0}". United States. doi:10.1088/0004-6256/142/1/10.
@article{osti_21583073,
title = {THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} BETWEEN DECLINATIONS -47{sup 0} AND 00{sup 0}},
author = {Boyd, Mark R. and Winters, Jennifer G. and Henry, Todd J. and Jao, Wei-Chun and Finch, Charlie T. and Subasavage, John P. and Hambly, Nigel C., E-mail: boyd@chara.gsu.edu, E-mail: winters@chara.gsu.edu, E-mail: thenry@chara.gsu.edu, E-mail: jao@chara.gsu.edu, E-mail: finch@usno.navy.mil, E-mail: jsubasavage@ctio.noao.edu, E-mail: nch@roe.ac.uk},
abstractNote = {We present 2817 new southern proper motion systems with 0.''40 yr{sup -1} > {mu} {>=} 0.''18 yr{sup -1} and declination between -47{sup 0} and 00{sup 0}. 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} {>=} 0.''18 yr{sup -1} and R{sub 59F} {<=} 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.},
doi = {10.1088/0004-6256/142/1/10},
journal = {Astronomical Journal (New York, N.Y. Online)},
issn = {1538-3881},
number = 1,
volume = 142,
place = {United States},
year = {2011},
month = {7}
}