262 citations · 921 across the 14 of their papers we have counts for
14 papers
Looking for the underlying cause of black hole X-ray variability in GRMHD simulations
D. A. Bollimpalli, R. Mahmoud, C. Done +4
Long-term observations have shown that black hole X-ray binaries exhibit strong, aperiodic variability on time-scales of a few milliseconds to seconds. The observed light curves di…
A Parallax Distance to the Microquasar GRS 1915+105 and a Revised Estimate of its Black Hole Mass
M. J. Reid, J. E. McClintock, J. F. Steiner +4
Using the Very Long Baseline Array, we have measured a trigonometric parallax for the micro quasar GRS 1915+105, which contains a black hole and a K-giant companion. This yields a…
Measuring the Spins of Stellar Black Holes: A Progress Report
J. E. McClintock, R. Narayan, L. Gou +3
We use the Novikov-Thorne thin disk model to fit the thermal continuum X-ray spectra of black hole X-ray binaries, and thereby extract the dimensionless spin parameter a* = a/M of…
Gamma-ray Burst 080319B: Evidence for Relativistic Turbulence, Not Internal Shocks
Pawan Kumar, Ramesh Narayan
We show that the excellent optical and gamma-ray data available for GRB 080319B rule out the internal shock model for the prompt emission. The data instead point to a model in whic…
Where Are All The Fallback Disks? Constraints on Propeller Systems
K. Y. Eksi, L. Hernquist, R. Narayan
Fallback disks are expected to form around new-born neutron stars following a supernova explosion. In almost all cases, the disk will pass through a propeller stage. If the neutron…
Multi-Temperature Blackbody Spectra of Thin Accretion Disks With and Without a Zero-Torque Inner Boundary Condition
E. R. Zimmerman, R. Narayan, J. E. McClintock +1
The standard spectral model for analyzing the soft component of thermal emission from a thin accretion disk around a black hole is the multi-temperature blackbody (MTB) model. The…