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11 papers · 2 filters
The Future of X-ray Reverberation from AGN
A. C. Fabian, W. N. Alston, E. M. Cackett +3
XMM-Newton is capable of making a transformational advance in our understanding of how luminous accreting black holes work, by dedicating about 10 per cent of future observing time…
Spectral-Timing Analysis of the Lower kHz QPO in the Low-Mass X-ray Binary Aquila X-1
Jon S. Troyer, Edward M. Cackett
Spectral-timing products of kilohertz quasi-periodic oscillations (kHz QPOs) in low-mass X-ray binary (LMXB) systems, including energy- and frequency-dependent lags, have been anal…
Potential cooling of an accretion-heated neutron star crust in the low-mass X-ray binary 1RXS J180408.9-342058
Aastha S. Parikh, Rudy Wijnands, Nathalie Degenaar +11
We have monitored the transient neutron star low-mass X-ray binary 1RXS J180408.9-342058 in quiescence after its ~4.5 month outburst in 2015. The source has been observed using Swi…
The thermal state of KS 1731-260 after 14.5 years in quiescence
Rachael L. Merritt, Edward M. Cackett, Edward F. Brown +7
Crustal cooling of accretion-heated neutron stars provides insight into the stellar interior of neutron stars. The neutron star X-ray transient, KS~1731260, was in outburst for…
Hitomi constraints on the 3.5 keV line in the Perseus galaxy cluster
Hitomi Collaboration, Felix A. Aharonian, Hiroki Akamatsu +215
High-resolution X-ray spectroscopy with Hitomi was expected to resolve the origin of the faint unidentified E=3.5 keV emission line reported in several low-resolution studies of va…
A global look at X-ray time lags in Seyfert Galaxies
E. Kara, W. N. Alston, A. C. Fabian +4
X-ray reverberation, where light-travel time delays map out the compact geometry around the inner accretion flow in supermassive black holes, has been discovered in several of the…