135 citations · 365 across the 13 of their papers we have counts for
4 papers · 2 filters
Discovery of 442-Hz Pulsations from an X-ray Source in the Globular Cluster NGC 6440
Fotis P. Gavriil, Tod E. Strohmayer, Jean H. Swank +1
We report on the serendipitous discovery of a 442-Hz pulsar during a Rossi X-ray Timing Explorer (RXTE) observation of the globular cluster NGC 6440. The oscillation is detected fo…
Hysteresis of spectral evolution in the soft state of black-hole binary LMC X-3
David M. Smith, David M. Dawson, Jean H. Swank
We report the discovery of hysteresis between the x-ray spectrum and luminosity of black-hole binary LMC X-3. Our observations, with the Proportional Counter Array on the Rossi X-r…
Does the Blazar Gamma-Ray Spectrum Harden with Increasing Flux? Analysis of 9 Years of EGRET Data
Giridhar Nandikotkur, Keith M. Jahoda, R. C. Hartman +5
The Energetic Gamma-Ray Experiment Telescope (EGRET) on the Compton Gamma-Ray Observatory (CGRO) discovered gamma-ray emission from more than 67 blazars during its 9 yr lifetime. W…
An X-ray Polarimeter for Constellation-X
K. Jahoda, K. Black, P. Deines-Jones +4
Polarimetry remains a largely unexploited technique in observational X-ray astronomy which could provide insight in the study of the strong gravity and magnetic fields at the core…