Astronomy and Astrophysics – Astronomy
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.4710i&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #47.10; Bulletin of the American Astronomical Society, Vol. 33, p.850
Astronomy and Astrophysics
Astronomy
Scientific paper
New trigonometric parallaxes are presented for a selection of southern hemisphere stars in the solar neighborhood. The CCD observations are obtained with the Australian National University's Siding Spring Observatory (SSO) 1 m reflector, and with the 0.9 m and 1.5 m telescopes at Cerro Tololo Interamerican Observatory under a NOAO Survey Program begun in August 1999. The SSO program stars are primarily southern LHS stars with proper motions greater than 0.5 arcsec/year, fainter than m(r) about 15, and brighter than 17 in I (Cousins). The CTIO target list has been assembled from a wide variety of modern sources to be candidates with a high likelihood of being within 20 pc based on photometric and spectroscopic information. Precisions in the parallaxes range between 1 and 4 mas depending on the number of frames and their distribution in time. Further information regarding the CTIO program may be found at the Research Consortium on Nearby Stars web site: www.chara.gsu.edu/RECONS/. This work is partially supported by NSF grant AST9820711 to The University of Virginia.
Begam Michael C.
Henry Todd J.
Ianna Philip A.
Mendez Rafael A.
Seitzer P. O.
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