481 citations · 6.2k across the 67 of their papers we have counts for
23 papers · 2 filters
Rapid X-ray Variability of Seyfert 1 Galaxies
S. Vaughan, A. C. Fabian, K. Iwasawa
The rapid and seemingly random fluctuations in X-ray luminosity of Seyfert galaxies provided early support for the standard model in which Seyferts are powered by a supermassive bl…
Detections of Molecular Hydrogen in the Outer Filaments of NGC 1275
N. A. Hatch, C. S. Crawford, A. C. Fabian +1
We present clear spectroscopic detections of molecular hydrogen in the outer filaments of the H-alpha nebula surrounding the central galaxy of the Perseus cluster, NGC 1275. This i…
Jet-Disc coupling in the accreting black hole XTEJ1118+480
Julien Malzac, Andrea Merloni, Andrew C. Fabian
We interpret the rapid correlated UV/optical/ X-ray variability of XTEJ1118+480 as a signature of the coupling between the X-ray corona and a jet emitting synchrotron radiation in…
The Obscured X-ray Background and Evolution of AGN
A. C. Fabian, M. A. Worsley
The X-ray Background has been resolved in the 0.5-5keV band and found to consist mostly of both unabsorbed and absorbed AGN with column densities <1e23. This contrasts with the loc…
INTEGRAL/SPI Limits on Electron-Positron Annihilation Radiation from the Galactic Plane
B. J. Teegarden, K. Watanabe, P. Jean +24
The center of our Galaxy is a known strong source of electron-positron 511-keV annihilation radiation. Thus far, however, there have been no reliable detections of annihilation rad…
The exceptional X-ray variability of the dwarf Seyfert nucleus NGC 4395
S. Vaughan, K. Iwasawa, A. C. Fabian +1
An analysis of the X-ray variability of the low luminosity Seyfert nucleus NGC 4395, based on a long XMM-Newton observation, is presented. The power spectrum shows a clear break fr…