Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21724216r&link_type=abstract
American Astronomical Society, AAS Meeting #217, #242.16; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
Almost 15% of all systems within 25 parsecs should be moving slower than 0.18 arcseconds per year, but traditional proper motion searches for nearby systems will miss them. Apart from USNO-B1, work by Lepine and Deacon, and stars bright enough to be seen by Hipparcos, the proper motion regime is almost completely unexplored.
We have made a photometric search of the SuperCOSMOS database (Hambly 2002) to locate new nearby systems. The most promising targets moving slower than 0.18"/yr are being followed up with low resolution spectroscopy, CCD photometry, and trigonometric parallaxes from the CTIOPI program. Our first results have revealed nearby nearly-motionless systems like SCR2049-4012 (9.2 pc, 0.06"/yr), and a large number of apparent binary and young systems (a few perhaps as young as TW Hydra) of great astrophysical interest.
This research is supported by NSF grant AST 09-08402
Henry Todd J.
Jensen E. N.
RECONS
Riedel Adric R.
Song Inseok
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