Abstract
GRB 060614 is a remarkable nearby gamma-ray burst (GRB; z = 0.125) observed by the Swift space based observatory, and it has puzzling properties that challenge current progenitor models; its lack of any bright supernova down to very strict limits and its vanishing spectral lags are typical of short GRBs, strikingly at odds with the long (102 s) duration of this event. However, the burst presents optical, UV, and X-ray afterglows in remarkable agreement with standard jetted fireball models. In particular, spectral analysis of the Burst Alert Telescope (BAT) and the X-ray Telescope (XRT) data during the overlap time interval and after shows that the peak energy of the burst decays and crosses the XRT energy band within 500 s from the trigger. The afterglow shows a clear case of jet break, which is simultaneously detected at optical, UV, and X-ray wavelengths, possibly the best among Swift GR-Bs. Moreover, the Ultraviolet and Optical Telecope (UVOT) light curves possibly show evidence of the passage of the injection frequency across the optical band between 10 and 30 ks from the trigger.
| Original language | English |
|---|---|
| Journal | Journal of the Korean Physical Society |
| Volume | 56 |
| Issue number | 5, part 1 Sp. Iss. Sl |
| Pages (from-to) | 1607-1611 |
| Number of pages | 4 |
| ISSN | 0374-4884 |
| DOIs | |
| Publication status | Published - 14 May 2010 |