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X-ray emission and absorption features during an energetic thermonuclear X-ray burst from IGR J17062-6143
N. Degenaar, J. M. Miller, R. Wijnands +2
Type-I X-ray bursts are thermonuclear explosions occurring in the surface layers of accreting neutron stars. These events are powerful probes of the physics of neutron stars and th…
A direct measurement of the heat release in the outer crust of the transiently accreting neutron star XTE J1709-267
N. Degenaar, R. Wijnands, J. M. Miller
The heating and cooling of transiently accreting neutron stars provides a powerful probe of the structure and composition of their crust. Observations of superbursts and crust cool…
The transient neutron star X-ray binary KS 1741-293 in outburst and quiescence
N. Degenaar, R. Wijnands
KS 1741-293 is a transient neutron star low-mass X-ray binary that is located at an angular distance of ~20' from the Galactic center. We map out the historic activity of the sourc…
A peculiar thermonuclear X-ray burst from the transiently accreting neutron star SAX J1810.8-2609
N. Degenaar, R. Wijnands
We report on a thermonuclear (type-I) X-ray burst that was detected from the neutron star low-mass X-ray binary SAX J1810.8-2609 in 2007 with Swift. This event was longer (~20 min)…
The X-ray flaring properties of Sgr A* during six years of monitoring with Swift
N. Degenaar, J. M. Miller, J. Kennea +2
Starting in 2006, Swift has been targeting a region of ~21'X21' around Sagittarius A* (Sgr A*) with the onboard X-ray telescope. The short, quasi-daily observations offer an unique…
Testing the deep-crustal heating model using quiescent neutron-star very-faint X-ray transients and the possibility of partially accreted crusts in accreting neutron stars
Rudy Wijnands, Nathalie Degenaar, Dany Page
It is assumed that accreting neutron stars (NSs) in LMXBs are heated due to the compression of the existing crust by the accreted matter which gives rise to nuclear reactions in th…