The likely optical counterpart of X-ray transient KS 1731-260

Details The likely optical counterpart of X-ray transient KS 1731-260 The likely optical counterpart of X-ray transient KS 1731-260

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001atel...72....1w&link_type=abstract

The Astronomer's Telegram, #72

Astronomy and Astrophysics

Astronomy

14

Optical, X-Ray, Binaries, Neutron Stars, Transients

Scientific paper

During our 27 March 2001 Chandra observation of the neutron star X-ray transient KS 1731-260, two X-ray sources were detected (Wijnands et al. 2001, ApJL submitted, astro-ph/0107380). One of those sources is very likely a star in the USNO A2.0 optical catalog (Monet et al. 1998, USNO-SA2.0, U.S. Naval Observatory, Washington DC) and in the Two Micron All Sky Survey (2MASS) point source catalog with a position (from 2MASS) of R.A = 17h34m12.70s, Dec. -26d05m48.4s (+/- 0.2 arcseconds).

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