130 citations · 384 across the 5 of their papers we have counts for
5 papers
Rapid optical and X-ray timing observations of GX 339-4: multi-component optical variability in the low/hard state
P. Gandhi, V. S. Dhillon, M. Durant +9
A rapid timing analysis of VLT/ULTRACAM and RXTE observations of the black hole binary GX 339-4 in its 2007 low/hard state is presented. The optical light curves in the r', g' and…
Optical pulsations from the anomalous X-ray pulsar 1E 1048.1-5937
V. S. Dhillon, T. R. Marsh, S. P. Littlefair +7
We present high-speed optical photometry of the anomalous X-ray pulsar 1E 1048.1-5937 obtained with ULTRACAM on the 8.2-m Very Large Telescope in June 2007. We detect 1E 1048.1-593…
Optical and infrared flares from a transient Galactic soft gamma-ray repeater
A. J. Castro-Tirado, A. de Ugarte Postigo, J. Gorosabel +33
Soft gamma-ray repeaters (SGRs) are a rare type of gamma-ray transient sources that are ocasionally detected as bursts in the high-energy sky. They are thought to be produced by ma…
Rapid optical and X-ray timing observations of GX 339-4: flux correlations at the onset of a low/hard state
P. Gandhi, K. Makishima, M. Durant +6
We present the discovery of optical/X-ray flux correlations on rapid timescales in the low/hard state of the Galactic black hole GX 339-4. The source had recently emerged from outb…
The variable radio-to-X-ray spectrum of the magnetar XTE J1810-197
F. Camilo, S. M. Ransom, J. Penalver +9
We have observed the 5.54s anomalous X-ray pulsar XTE J1810-197 at radio, millimeter, and infrared (IR) wavelengths, with the aim of learning about its broad-band spectrum. At the…