1.9k citations · 10.6k across the 94 of their papers we have counts for
5 papers · 1 filter
Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*
M. A. Nowak, J. Neilsen, S. B. Markoff +10
Starting in 2012, we began an unprecedented observational program focused on the supermassive black hole in the center of our Galaxy, Sgr A*, utilizing the High Energy Transmission…
Stochastic variability in X-ray emission from the black hole binary GRS 1915+105
Yuriy S. Polyakov, Joseph Neilsen, Serge F. Timashev
We examine stochastic variability in the dynamics of X-ray emission from the black hole system GRS 1915+105, a strongly variable microquasar commonly used for studying relativistic…
Radiation Pressure and Mass Ejection in Rho-like States of GRS 1915+105
Joseph Neilsen, Ronald A. Remillard, Julia C. Lee
We present a unifying scenario to address the physical origin of the diversity of X-ray lightcurves within the rho variability class of the microquasar GRS 1915+105. This 'heartbea…
A Hybrid Magnetically/Thermally-Driven Wind in the Black Hole GRO J1655-40?
Joseph Neilsen, Jeroen Homan
During its 2005 outburst, GRO J1655-40 was observed twice with the Chandra High Energy Transmission Grating Spectrometer; the second observation revealed a spectrum rich with ioniz…
Ubiquitous equatorial accretion disc winds in black hole soft states
G. Ponti, R. P. Fender, M. C. Begelman +3
High resolution spectra of Galactic Black Holes (GBH) reveal the presence of highly ionised absorbers. In one GBH, accreting close to the Eddington limit for more than a decade, a…