49 citations · 104 across the 6 of their papers we have counts for
6 papers
The impact of neutron star spin on X-ray spectra
M. J. Burke, M. Gilfanov, R. Sunyaev
We investigate whether the intrinsic spin of neutron stars leaves an observable imprint on the spectral properties of X-ray binaries. To evaluate this we consider a sample of nine…
A dichotomy between the hard state spectral properties of black hole and neutron star X-ray~binaries
M. J. Burke, M. Gilfanov, R. Sunyaev
We analyse the spectra of black hole (BH) and neutron star (NS) X-ray binaries (XBs) in the hard state using archival RXTE observations. We find that there is a clear dichotomy in…
The hard X-ray continuum of Cen A observed with INTEGRAL SPI
Mark J. Burke, Elisabeth Jourdain, Jean-Pierre Roques +1
We revisit the average hard X-ray spectrum from the AGN of Centaurus A (Cen A) using ten years worth of observations with INTEGRAL SPI. This source has the highest flux observed fr…
The fading of two transient ULXs to below the stellar mass Eddington limit
Mark J. Burke, Ralph P. Kraft, Roberto Soria +10
We report new detections of the two transient ultraluminous X-ray sources (ULXs) in NGC 5128 from an ongoing series of Chandra observations. Both sources have previously been obser…
Spectral Properties of X-ray Binaries in Centaurus A
Mark J. Burke, Somak Raychaudhury, Ralph P. Kraft +19
We present a spectral investigation of X-ray binaries in NGC 5128 (Cen A), using six 100 ks Chandra observations taken over two months in 2007. We divide our sample into thermally…
A Transient Sub-Eddington Black Hole X-ray Binary Candidate in the Dust Lanes of Centaurus A
Mark J. Burke, Somak Raychaudhury, Ralph P. Kraft +18
We report the discovery of a bright X-ray transient, CXOU J132527.6-430023, in the nearby early-type galaxy NGC 5128. The source was first detected over the course of five Chandra…