Is GRB 050904 a super-long burst?

Y. C. Zou; Z. G. Dai; D. Xu

doi:10.1086/504965

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arXiv · astro-ph/0511205

Is GRB 050904 a super-long burst?

Y. C. Zou·Z. G. Dai·D. Xu

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Abstract

By considering synchrotron radiative process in the internal shock model and assuming that all internal shocks are nearly equally energetic, we analyze the gamma-ray burst (GRB) emission at different radii corresponding to different observed times. We apply this model to GRB 050904 and find that our analytical results can provide a natural explanation for the multi-band observations of GRB 050904. This suggests that the X-ray flare emission and the optical emission of this burst could have originated from internal shocks being due to collisions among nearly-equally-energetic shells ejected from the central engine. Thus GRB 050904 appears to be a burst with super-long central engine activity.

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Y. C. Zou, Z. G. Dai, D. Xu. 2007-03-07. Is GRB 050904 a super-long burst?. https://doi.org/10.1086/504965

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