Search Publications
An absorption origin for the X-ray spectral variability of MCG-6-30-15
Turner, T. J.; Reeves, J. N.; Miller, L.
Context: The Seyfert I galaxy MCG-6-30-15 shows one of the best examples of a broad “red wing” of emission in its X-ray spectrum at energies 2 < E < 6.4 keV, commonly interpreted as being caused by relativistically-blurred reflection close to the event horizon of the black hole.
Aims: We aim to test an alternative model in which absorpti…
Suzaku broad-band spectroscopy of RX J1347.5-1145: constraints on the extremely hot gas and non-thermal emission
Yoshikawa, K.; Ota, N.; Komatsu, E. +6 more
Context: We present the results of our analysis of long Suzaku observations (149 ks and 122 ks for XIS and HXD, respectively) of the most X-ray luminous galaxy cluster, RX J1347.5-1145, at z=0.451.
Aims: To understand the gas physics of a violent, cluster merger, we study physical properties of the hot ( 20 keV) gas clump in the south-east (SE…
Hadronic versus leptonic origin of the gamma-ray emission from supernova remnant RX J1713.7-3946
Völk, H. J.; Berezhko, E. G.
Aims: The hadronic vs. leptonic origin of the gamma-ray emission from the Supernova Remnant RX J1713.7-3946 is discussed both in the light of new observations and from a theoretical point of view.
Methods: The existing good spatial correlation of the gamma-ray emission and the nonthermal X-ray emission is analyzed theoretically. In addition, t…
Phase-dependent X-ray observations of the β Lyrae system. No eclipse in the soft band
Hamann, W. -R.; Oskinova, L. M.; Ignace, R. +2 more
Aims:We report on observations of the eclipsing and interacting binary β Lyrae from the Suzaku X-ray telescope. This system involves an early B star embedded in an optically and geometrically thick disk that is siphoning atmospheric gases from a less massive late B II companion.
Methods: Motivated by an unpublished X-ray spectrum from the Eins…