GRBs with no afterglow even in the Swift Era?

L. Vetere, David Nelson Burrows, N. Gehrels, Peter Istvan Meszaros, X. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Thanks to its great capability Swift succeeds detecting an afterglow more than 93% of the time BAT triggers a new event. In a few cases, mainly Short GRBs or late observations, XRT did not detect any emission. However, for at least seven Long GRBs XRT could not measure any X-afterglow either, even as early as 100s after the BAT trigger. The detection of this new class of GRBs without any X-ray emission has raised many questions. Are these extreme naked GRB? Is this a completely new class of objects with an uncommon emission release? In this contribution we present a study on these unusual events. We analyse their peculiar behaviour in the Gamma and X-ray bands and discuss their singular origin.

Original languageEnglish (US)
Title of host publicationGamma-Ray Burst - 6th Huntsville Symposium
Number of pages5
StatePublished - Nov 27 2009
Event6th Huntsville Symposium on Gamma-Ray Bursts - Huntsville, AL, United States
Duration: Oct 20 2008Oct 23 2008

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other6th Huntsville Symposium on Gamma-Ray Bursts
Country/TerritoryUnited States
CityHuntsville, AL

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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