Other
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.8501p&link_type=abstract
American Astronomical Society Meeting 210, #85.01; Bulletin of the American Astronomical Society, Vol. 39, p.193
Other
Scientific paper
We present light curves of some of the most interesting objects from our catalog of variable stars, which includes 15 periodic sources, within 1' of Sgr A* based on image subtraction of near-infrared (H and K) photometry. Our images were obtained over 133 nights from 2000-2002 in H-band and over 134 nights from 2001-2002 in K-band; the typical FWHM is 1.4". We have matched the catalog to other near-infrared, X-ray, and radio (i.e., maser) data, and we discuss some of the more interesting objects. The catalog includes the twin 50Msun contact eclipsing binary IRS 16SW, several known long-period variables and three new LPV candidates. We associate IRS 10* with OH, SiO, and H2O masers and a bright X-ray point source; this analysis suggests IRS 10* is an AGB star with an accreting companion. Among the newly discovered sources are a probable cataclysmic variable, a potential nearly edge-on contact 84 day period eclipsing binary, and a possible 41 day period pulsating variable.
DePoy Darren L.
Peeples Molly S.
Stanek Kris Z.
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