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 CesareCentre d’Étude Spatiale des Rayonnements, CNRS/UPS, BP 4346, 31028 Toulouse Cedex 4, FranceL. StellaINAF – Osservatorio Astronomico di Roma, via Frascati 33, Monte Porzio Catone, Roma, Italy
2010en
ABI
Abstract
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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Cited by 30 references