RXTE confirmation of the Intermediate Polar status of Swift J0732.5-1331

Abstract

Aims. We intend to establish the X-ray properties of Swift J0732.5-1331 and therefore confirm its status as an intermediate polar. Method. We analysed 36,240 s of X-ray data from RXTE. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties. Results. The X-ray spin period is confirmed to be 512.4(3) s with a strong first harmonic. No modulation is detected at the candidate orbital period of 5.6 h, but a coherent modulation is present at the candidate 11.3 h period. The spectrum is consistent with a 37 keV bremsstrahlung continuum with an iron line at 6.4 keV absorbed by an equivalent hydrogen column density of around 10^22 atoms cm^-2. Conclusions. Swift J0732-1331 is confirmed to be an intermediate polar.

arXiv comment4 pages, 5 figures, accepted for publication in A&A

References in corpus (3)

• The spin periods and magnetic moments of white dwarfs in magnetic cataclysmic variables
• 20-100 keV properties of cataclysmic variables detected in the INTEGRAL/IBIS survey
• On the iron Kalpha complex in magnetic cataclysmic variables

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• RXTE determination of the intermediate polar status of XSS J00564+4548, IGR J17195-4100, and XSS J12270-4859
• Optical and X-ray Studies of Ten X-ray Selected Cataclysmic Binaries
• IPHAS J062746.41+014811.3: a deeply eclipsing intermediate polar
• RXTE and XMM observations of intermediate polar candidates
• RXTE confirmation of the intermediate polar status of IGR J15094-6649
• Very fast photometric and X-ray observations of the intermediate polar V2069 Cygni (RX J2123.7+4217)
• XMM-Newton Observations of the Peculiar Cataclysmic Variable Lanning 386: X-ray evidence for a Magnetic Primary
• XMM-Newton confirmation of a new intermediate polar: XMMU J185330.7-012815
• X-ray confirmation of the intermediate polar IGR J16547-1916