278 citations · 1.2k across the 13 of their papers we have counts for
13 papers
Radius Constraints from Reflection Modeling of Cygnus X-2 with NuSTAR and NICER
R. M. Ludlam, E. M. Cackett, J. A. García +8
We present a spectral analysis of NuSTAR and NICER observations of the luminous, persistently accreting neutron star (NS) low-mass X-ray binary Cygnus X-2. The data were divided in…
An Empirical Background Model for the NICER X-ray Timing Instrument
Ronald A. Remillard, Michael Loewenstein, James F. Steiner +11
NICER has a comparatively low background rate, but it is highly variable, and its spectrum must be predicted using measurements unaffected by the science target. We describe an emp…
A NICER look at the state transitions of the black hole candidate MAXI J1535-571 during its reflares
V. A. Cúneo, K. Alabarta, L. Zhang +18
The black hole candidate and X-ray binary MAXI J1535-571 was discovered in September 2017. During the decay of its discovery outburst, and before returning to quiescence, the sourc…
A rapid change in X-ray variability and a jet ejection in the black hole transient MAXI J1820+070
Jeroen Homan, Joe Bright, Sara E. Motta +13
We present Neutron Star Interior Composition Explorer X-ray and Arcminute Microkelvin Imager Large Array radio observations of a rapid hard-to-soft state transition in the black ho…
An evolving broad iron line from the first Galactic ultraluminous X-ray pulsar Swift J0243.6+6124
Gaurava K. Jaisawal, Colleen A. Wilson-Hodge, Andrew C. Fabian +15
We present a spectral study of the ultraluminous Be/X-ray transient pulsar Swift J0243.6+6124 using Neutron Star Interior Composition Explorer (NICER) observations during the syste…
The corona contracts in a black-hole transient
E. Kara, J. F. Steiner, A. C. Fabian +11
The geometry of the accretion flow around stellar-mass black holes can change on timescales of days to months. When a black hole emerges from quiescence (that is, it "turns on" aft…