Статья

RAPTOR Observations of Delayed Explosive Activity in the High-Redshift Gamma-Ray Burst GRB 060206

P. R. WoźniakSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545W. T. VestrandSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545J. WrenSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545R. R. WhiteSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545S. M. EvansSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545D. CaspersonSpace and Atmospheric Sciences Group, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545

2006en

ABI

Аннотация

The RAPid Telescopes for Optical Response (RAPTOR) system at Los Alamos National Laboratory observed GRB 060206 starting 48.1 minutes after gamma-ray emission triggered the Burst Alert Telescope (BAT) on-board the Swift satellite. The afterglow light curve measured by RAPTOR shows a spectacular re-brightening by ~1 mag about 1 h after the trigger and peaks at R ~ 16.4 mag. Shortly after the onset of the explosive re-brightening the OT doubled its flux on a time-scale of about 4 minutes. The total R-band fluence received from GRB 060206 during this episode is 2.3e-9 erg/cm2. In the rest frame of the burst (z = 4.045) this yields an isotropic equivalent energy release of ~0.7e50 erg in just a narrow UV band 130 +/- 22 nm. We discuss the implications of RAPTOR observations for untriggered searches for fast optical transients and studies of GRB environments at high redshift.

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Идентификаторы

DOI: 10.1086/504796

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar