122 citations · 538 across the 40 of their papers we have counts for
5 papers · 1 filter
Late-Time X-ray Flares during GRB Afterglows: Extended Internal Engine Activity
A. D. Falcone, D. N. Burrows, P. Romano +21
Observations of gamma ray bursts (GRBs) with Swift produced the initially surprising result that many bursts have large X-ray flares superimposed on the underlying afterglow. These…
Swift observations of GRB050128: the early X-ray afterglow
S. Campana, L. A. Antonelli, G. Chincarini +33
Swift discovered GRB050128 with the Burst Alert Telescope and promptly pointed its narrow field instruments to monitor the afterglow. X-ray observations started 108 s after the tri…
A complete sample of Seyfert galaxies selected at 1/4 keV
S. Vaughan, R. Edelson, R. S. Warwick +2
We have used the ROSAT Bright Source Catalogue to extract a complete sample of sources selected in the band from 0.1-0.4 keV. This 1/4 keV-selected sample is comprised of 54 Seyfer…
The identification of an optical counterpart to the super-Eddington X-ray source, NGC 5204 X-1
T. P. Roberts, M. R. Goad, M. J. Ward +4
We report the identification of a possible optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. New Chandra data shows that the X-ray source is point-like, with a…
On the absence of broad MgII emission-line variability in NGC 3516 during 1996
M. R. Goad, A. P. Koratkar, D. J. Axon +2
During the 1996 HST/FOS monitoring campaign of the Seyfert 1 galaxy NGC 3516, the UV continuum showed a factor of 5 variation; correspondingly the strongest broad UV emission lines…