The Open UniversitySkip to content

RXTE confirmation of the intermediate polar status of IGR J15094–6649

Butters, O. W.; Norton, A. J.; Mukai, K. and Barlow, E. J. (2009). RXTE confirmation of the intermediate polar status of IGR J15094–6649. Astronomy & Astrophysics, 498(2) L17-L19.

Full text available as:
PDF (Not Set) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (147Kb)
DOI (Digital Object Identifier) Link:
Google Scholar: Look up in Google Scholar


Aims. We aim to establish the X-ray properties of the intermediate polar candidate IGR J15094–6649 and therefore confirm its inclusion into the class.

Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties.

Results. A spin period of 809.7 ± 0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 17 ± 4 keV Bremsstrahlung or ? = 1.8 ± 0.1 power law, with an iron emission line feature and significant absorption in each case.

Conclusions. IGR J15094–6649 is confirmed to be an intermediate polar.

Item Type: Journal Article
Copyright Holders: 2009 ESO
ISSN: 1432-0746
Keywords: binary stars: binaries; novae; cataclysmic variables; X-ray binaries
Academic Unit/Department: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 16236
Depositing User: Andrew Norton
Date Deposited: 13 May 2009 16:05
Last Modified: 04 Oct 2016 19:56
Share this page:


Scopus Citations

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

▼ Automated document suggestions from open access sources

Actions (login may be required)

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340