173 citations · 3.8k across the 142 of their papers we have counts for
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Orbital decay in M82 X-2
Matteo Bachetti, Marianne Heida, Thomas Maccarone +21
M82 X-2 is the first pulsating ultraluminous X-ray source (PULX) discovered. The luminosity of these extreme pulsars, if isotropic, implies an extreme mass transfer rate. An altern…
Evolution of the spin, spectrum and super-orbital period of the ultraluminous X-ray pulsar M51 ULX7
Murray Brightman, Matteo Bachetti, Hannah Earnshaw +6
M51 ULX7 is among a small group of known ultraluminous X-ray pulsars (ULXP). The neutron star powering the source has a spin period of 2.8s, orbits its companion star with a period…
Spectral and Timing Analysis of NuSTAR and Swift/XRT Observations of the X-Ray Transient MAXI J0637-430
Hadar Lazar, John A. Tomsick, Sean N. Pike +10
We present results for the first observed outburst from the transient X-ray binary source MAXI J0637-430. This study is based on eight observations from the Nuclear Spectroscopic T…
Photospheric Radius Expansion and a double-peaked type-I X-ray burst from GRS 1741.9-2853
Sean N. Pike, Fiona A. Harrison, John A. Tomsick +6
We present analysis of two type-I X-ray bursts observed by NuSTAR originating from the very faint transient neutron star low-mass X-ray binary GRS 1741.9-2853 during a period of ou…
Long-term pulse period evolution of the ultra-luminous X-ray pulsar NGC 7793 P13
F. Fuerst, D. J. Walton, M. Heida +14
Ultra-luminous X-ray pulsars (ULXPs) provide a unique opportunity to study super-Eddington accretion. We present the results of a monitoring campaign of ULXP NGC 7793 P13. Over our…
A new candidate pulsating ULX in NGC 7793
Erwan Quintin, Natalie Webb, Andrés Gúrpide +2
We report here the discovery of NGC 7793 ULX-4, a new transient ultraluminous X-ray source (ULX) in NGC 7793, a spiral galaxy already well known for harbouring several ULXs. This n…