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The identification of MAXI J1659-152 as a black hole candidate
M. Kalamkar, J. Homan, D. Altamirano +3
We report on the analysis of all 65 pointed Rossi X-ray Timing Explorer observations of the recently discovered soft X-ray transient MAXI J1659-152 (initially referred to as GRB 10…
The return of the bursts: Thermonuclear flashes from Circinus X-1
M. Linares, A. Watts, D. Altamirano +14
We report the detection of 15 X-ray bursts with RXTE and Swift observations of the peculiar X-ray binary Circinus X-1 during its May 2010 X-ray re-brightening. These are the first…
Further X-ray observations of EXO 0748-676 in quiescence: evidence for a cooling neutron star crust
N. Degenaar, M. T. Wolff, P. S. Ray +8
In late 2008, the quasi-persistent neutron star X-ray transient and eclipsing binary EXO 0748-676 started a transition from outburst to quiescence, after it had been actively accre…
Suzaku and BeppoSAX X-ray Spectra of the Persistently Accreting Neutron-Star Binary 4U 1705-44
Dacheng Lin, Ronald A. Remillard, Jeroen Homan
We present an analysis of the broad-band spectra of 4U~1705--44 obtained with {\it Suzaku} in 2006--2008 and by {\it BeppoSAX} in 2000. The source exhibits two distinct states: the…
The kilohertz quasi-periodic oscillations during the Z and atoll phases of the unique transient XTE J1701--462
A. Sanna, M. Mendez, D. Altamirano +6
We analysed 866 observations of the neutron-star low-mass X-ray binary XTE J1701-462 during its 2006-2007 outburst. XTE J1701-462 is the only example so far of a source that during…
XTE J1701-462 and its Implications for the Nature of Subclasses in Low-Magnetic-Field Neutron Star Low-Mass X-Ray Binaries
Jeroen Homan, Michiel van der Klis, Joel K. Fridriksson +8
We report on an analysis of RXTE data of the transient neutron star low-mass X-ray binary (NS-LMXB) XTE J1701-462, obtained during its 2006-2007 outburst. The X-ray properties of t…