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.

DOI: https://doi.org/10.1051/0004-6361/200911725


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.

Viewing alternatives

Download history


Public Attention

Altmetrics from Altmetric

Number of Citations

Citations from Dimensions

Item Actions