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Burst and Outburst Characteristics of Magnetar 4U 0142+61
Ersin Gogus, Lin Lin, Oliver J. Roberts +10
We have compiled the most comprehensive burst sample from magnetar 4U 0142+61, comprising 27 bursts from its three burst-active episodes in 2011, 2012 and the latest one in 2015 ob…
Exploring the Long-Term Evolution of GRS 1915+105
D. Huppenkothen, L. M. Heil, D. W. Hogg +1
Among the population of known galactic black hole X-ray binaries, GRS 1915+105 stands out in multiple ways. It has been in continuous outburst since 1992, and has shown a wide rang…
Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni
D. Huppenkothen, G. Younes, A. Ingram +12
In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillatio…
Magnetar-like X-ray Bursts from a Rotation Powered Pulsar, PSR J1119-6127
Ersin Gogus, Lin Lin, Yuki Kaneko +8
Two energetic hard X-ray bursts have recently triggered the Fermi and Swift space observatories from the rotation powered pulsar, PSR J1119-6127. We have performed in depth spectra…
eXTP -- enhanced X-ray Timing and Polarimetry Mission
S. N. Zhang, M. Feroci, A. Santangelo +181
eXTP is a science mission designed to study the state of matter under extreme conditions of density, gravity and magnetism. Primary targets include isolated and binary neutron star…
False periodicities in quasar time-domain surveys
S. Vaughan, P. Uttley, A. G. Markowitz +5
There have recently been several reports of apparently periodic variations in the light curves of quasars, e.g. PG 1302-102 by Graham et al. (2015a). Any quasar showing periodic os…
The wind nebula around magnetar Swift J1834.9-0846
G. Younes, C. Kouveliotou, O. Kargaltsev +12
We report on the analysis of two deep XMM-Newton observations of the magnetar Swift J1834.9-0846 and its surrounding extended emission taken in March 2014 and October 2014, 2.5 and…