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Gamma-ray bursts afterglows with energy injection from a spinning down neutron star

S. Dall’OssoINAF – Osservatorio Astronomico di Roma, via Frascati 33, Monte Porzio Catone, Roma, ItalyG. StrattaD. GuettaINAF – Osservatorio Astronomico di Roma, via Frascati 33, Monte Porzio Catone, Roma, ItalyS. CovinoINAF – Osservatorio Astronomico di Brera, via E. Bianchi 46, 23807, Merate (LC), ItalyG. De CesareDipartimento di Astronomia, Universita’ degli Studi di Bologna, via Ranzani 1, I40127 Bologna, ItalyL. StellaINAF – Osservatorio Astronomico di Roma, via Frascati 33, Monte Porzio Catone, Roma, Italy

2010en

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ABI

Annotatsiya

Aims. We investigate a model for the shallow decay phases of gamma-ray burst (GRB) afterglows discovered by Swift/XRT in the first hours following a GRB event. In the context of the fireball scenario, we consider the possibility that long-lived energy injection from a millisecond spinning, ultramagnetic neutron star (magnetar) powers afterglow emission during this phase.

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Identifikatorlar

DOI: 10.1051/0004-6361/201014168

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