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~0.85 M_Sun in a low-mass 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.

10 pages, 4 figures, will be published in Astronomy Letters, V.36, N12, PP.904-909, 2010

References in corpus (5)

• INTEGRAL/IBIS all-sky survey in hard X-rays
• IGR J16194-2810: a new symbiotic X-ray binary
• Chandra Localizations and Spectra of INTEGRAL Sources in the Galactic Plane: The Cycle 9 Sample
• Chandra Localizations and Spectra of INTEGRAL Sources in the Galactic Plane
• Low-mass X-ray binaries in the bulge of the Milky Way

Cited by in corpus (9)

• INTEGRAL/IBIS nine-year Galactic Hard X-Ray Survey
• INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey. Part II: Catalog of Sources
• Hard X-ray Cataclysmic Variables
• INTEGRAL/IBIS 17-yr hard X-ray all-sky survey
• New hard X-ray sources discovered in the ongoing INTEGRAL Galactic Plane survey after 14 years of observations
• INTEGRAL view on Cataclysmic Variables and Symbiotic Binaries
• Confirmation of 1RXS J165443.5-191620 as an intermediate polar and its orbital and spin periods
• Optical Identification of Four Hard X-ray Sources from the Swift All-Sky Survey
• X-ray confirmation of the intermediate polar IGR J16547-1916