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The Palermo Swift-BAT hard X-ray catalogue III. Results after 54 months of sky survey
G. Cusumano, V. La Parola, A. Segreto +10
We present the Second Palermo Swift-BAT hard X-ray catalogue obtained by analysing data acquired in the first 54 months of the Swift mission. Using our software dedicated to the an…
On the average Gamma-Ray Burst X-ray flaring activity
R. Margutti, G. Bernardini, R. Barniol Duran +3
Gamma-ray burst X-ray flares are believed to mark the late time activity of the central engine. We compute the temporal evolution of the average flare luminosity in the com…
Swift highlights and flares (Back to the drawing board?)
G. Chincarini, R. Margutti
Swift opened up a new era in the study of gamma-ray burst sources (GRB). Among a variety of discoveries made possible by Swift, here we focus on GRB090423, the event at z=8.2 which…
The Swift-BAT hard X-ray sky monitoring unveils the orbital period of the HMXB IGR J16493-4348
G. Cusumano, V. La Parola, P. Romano +3
IGR J16493-4348 is a supergiant high mass X-ray binary discovered by INTEGRAL in 2004. The source is detected at a significance level of standard deviations in the Swift-B…
Detection of an orbital period in the supergiant high mass X-ray binary IGR J164654507 with Swift-BAT
V. La Parola, G. Cusumano, P. Romano +3
We analysed the IGR J16465-4507 Burst Alert Teelescope survey data collected during the first 54 months of the Swift mission. The source is in a crowded field and it is revealed th…
Lag-luminosity relation in gamma-ray burst X-ray flares: a direct link to the prompt emission
R. Margutti, C. Guidorzi, G. Chincarini +4
The temporal and spectral analysis of 9 bright X-ray flares out of a sample of 113 flares observed by Swift reveals that the flare phenomenology is strictly analogous to the prompt…