IGR J16547-1916/1RXS J165443.5-191620—a new intermediate polar from the INTEGRAL galactic survey
Abstract
We present the results of our optical identification of the X-ray source IGR J16547-1916 detected by the INTEGRAL observatory during a deep all-sky survey. Analysis of the spectroscopic data from the SWIFT and INTEGRAL observatories in the X-ray energy band and from the BTA (Special Astrophysical Observatory) telescope in the optical band has shown that the source is most likely an intermediate polar—an accreting white dwarf with the mass of M WD μ 0.85 M ⊙ binary system. Subsequent studies of the object's rapid variability with the RTT-150 telescope have confirmed this conclusion by revealing periodic pulsations of its optical emission with a period of ≈550 s.
- Publication:
-
Astronomy Letters
- Pub Date:
- December 2010
- DOI:
- 10.1134/S1063773710120042
- arXiv:
- arXiv:1011.1129
- Bibcode:
- 2010AstL...36..904L
- Keywords:
-
- cataclysmic variables;
- intermediate polars;
- white dwarfs;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 10 pages, 4 figures, will be published in Astronomy Letters, V.36, N12, PP.904-909, 2010