Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine

Details Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine

2009-05-27

arxiv.org/abs/0905.4431v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Submitted to Science; please note that this manuscript is subject to press embargo

Scientific paper

We imaged the position of the Naked-Eye Burst, GRB080319B, before, during and after its gamma-ray activity with sub-second temporal resolution and discovered the fast variability of its prompt optical emission. Its characteristics and similarity with properties of gamma emission temporal structure suggest that it reflects the behaviour of internal engine -- supposedly, a hyperaccreting solar-mass black hole formed in the collapse of a massive stellar core.

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