activity
20072009
most citedDiscerning the physical origins of cosmological Gamma-ray bursts based on multiple observational criteria: the cases of z=6.7 GRB 080913, z=8.3 GRB 090423, and some short/hard GRBs

440 citations · 901 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.HE200950 cited

Monitoring Supergiant Fast X-ray Transients with Swift. Results from the first year

P. Romano, L. Sidoli, G. Cusumano +12

Swift has allowed the possibility to give Supergiant Fast X-ray Transients (SFXTs), the new class of High Mass X-ray Binaries discovered by INTEGRAL, non serendipitous attention th…

astro-ph.HE20093 cited

Variability in the Prompt Emission of Swift-BAT Gamma-Ray Bursts

T. N. Ukwatta, K. S. Dhuga, W. C. Parke +8

We present the results of our study of the variability time scales of a sample of 27 long Swift Gamma-Ray Bursts (GRBs) with known redshifts. The variability time scale can help ou…

astro-ph.CO200994 cited

Ultraviolet Spectroscopy of Supernovae: The First Two Years of Swift Observations

F. Bufano, S. Immler, M. Turatto +13

We present the entire sample of ultraviolet (UV) spectra of supernovae (SNe) obtained with the Ultraviolet/Optical Telescope (UVOT) on board the Swift satellite during the first 2…

astro-ph.HE2009111 cited

Looking Into the Fireball: ROTSE-III and Swift Observations of Early GRB Afterglows

E. S. Rykoff, F. Aharonian, C. W. Akerlof +21

We report on a complete set of early optical afterglows of gamma-ray bursts (GRBs) obtained with the ROTSE-III telescope network from March 2005 through June 2007. This set is comp…

astro-ph.CO20096 cited

The Growth of Supermassive Black Holes Across Cosmic Time

K. Nandra, J. A. Aird, D. M. Alexander +54

One of the main themes in extragalactic astronomy for the next decade will be the evolution of galaxies over cosmic time. Many future observatories, including JWST, ALMA, GMT, TMT…

astro-ph.HE200911 cited

Selection effects on GRB spectral-energy correlations

Lara Nava, Giancarlo Ghirlanda, Gabriele Ghisellini

Instrumental selection effects can act upon the estimates of the peak energy Ep, the fluence F and the peak flux P of GRBs. If this were the case, then the correlations involving t…