343 citations · 850 across the 8 of their papers we have counts for
8 papers
Connecting X-ray absorption and 21cm neutral hydrogen absorption in obscured radio AGN
V. A. Moss, J. R. Allison, E. M. Sadler +22
Many radio galaxies show the presence of dense and dusty gas near the active nucleus. This can be traced by both 21cm HI absorption and soft X-ray absorption, offering new insight…
The Australian Square Kilometre Array Pathfinder: Performance of the Boolardy Engineering Test Array
D. McConnell, J. R. Allison, K. Bannister +71
We describe the performance of the Boolardy Engineering Test Array (BETA), the prototype for the Australian Square Kilometre Array Pathfinder telescope ASKAP. BETA is the first ape…
A Common Origin for Cosmic Explosions Inferred from Fireball Calorimetry
E. Berger, S. R. Kulkarni, G. Pooley +8
Past studies suggest that long-duration gamma-ray bursts (GRBs) have a standard energy of E_gamma ~ 10^51 erg in ultra-relativistic ejecta when corrected for asymmetry ("jets"). Ho…
GRB 011121: A Massive Star Progenitor
P. A. Price, E. Berger, D. E. Reichart +29
Of the cosmological gamma-ray bursts, GRB 011121 has the lowest redshift, z=0.36. More importantly, the multi-color excess in the afterglow detected in the Hubble Space Telescope (…
A Coordinated Radio Afterglow Program
D. A. Frail, S. R. Kulkarni, M. H. Wieringa +7
We describe a ground-based effort to find and study afterglows at centimeter and millimeter wavelengths. We have observed all well-localized gamma-ray bursts in the Northern and So…
Optical and Radio Observations of the Afterglow from GRB990510: Evidence for a Jet
F. A. Harrison, J. S. Bloom, D. A. Frail +16
We present multi-color optical and two-frequency radio observations of the bright SAX event, GRB 990510. The well-sampled optical decay, together with the radio observations are in…