2022
DOI: 10.48550/arxiv.2201.12485
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Temporal Analysis of GRB Precursors in the Third Swift-BAT Catalog

Liande Li,
Jirong Mao

Abstract: We select 52 long gamma-ray bursts(GRBs) having the precursor activity in the third Swift-BAT catalog. Each episode shown in both the precursors and the main bursts is fitted by the Norris function. We systematically analyze the temporal properties for both the precursors and the main bursts. We do not find any significant difference between the temporal profile of the precursor and that of the main burst. The photon count of the precursor is related to that of the main burst. It is indicated that the precurso… Show more

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