AustralieFrV1, Main, Exploration, bibRecord, 006618

The puzzling temporally variable optical and X-ray afterglow of GRB 101024A

Identifieur interne : 006618 ( Main/Exploration ); précédent : 006617; suivant : 006619

The puzzling temporally variable optical and X-ray afterglow of GRB 101024A

Auteurs : B. Gendre [Italie] ; G. Stratta [Italie] ; M. Laas-Bourez [Australie] ; D. M. Coward [Australie] ; A. Klotz [France] ; S. Cutini [Italie] ; M. Boër [France] ; C. Stockdale [Australie]

Source :

Astronomy and astrophysics : (Berlin. Print) [ 0004-6361 ] ; 2011.

RBID : Pascal:11-0448002

Descripteurs français

Pascal (Inist)
- Postluminescence, Observation optique, Modèle, Courbe lumière, Aplatissement, Etoile neutron, Sursaut Rγ, Source gamma cosmique.

English descriptors

KwdEn :
- Afterglow, Cosmic gamma sources, Flattening, Gamma ray burst, Light curves, Models, Neutron stars, Optical observation.

Abstract

Aims. We present the optical observations of the afterglow of the Swift burst GRB 101024A and try to reconcile these observations with the X-ray afterglow data of GRB 101024A using current afterglow models Methods. We employ early optical observations, using the Zadko Telescope combined with X-ray data, to compare them with the reverse shock/forward shock model. Results. The early optical light curve reveals a very unusual steep decay index of α ˜ 5. This is followed by a flattening and possibly a plateau phase coincident with a similar feature in the X-ray. We discuss these observations in the framework of the standard reverse shock/forward shock model and energy injection. The plateau phase might also be the signature of the formation of a new magnetar.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Aims. We present the optical observations of the afterglow of the Swift burst GRB 101024A and try to reconcile these observations with the X-ray afterglow data of GRB 101024A using current afterglow models Methods. We employ early optical observations, using the Zadko Telescope combined with X-ray data, to compare them with the reverse shock/forward shock model. Results. The early optical light curve reveals a very unusual steep decay index of α ˜ 5. This is followed by a flattening and possibly a plateau phase coincident with a similar feature in the X-ray. We discuss these observations in the framework of the standard reverse shock/forward shock model and energy injection. The plateau phase might also be the signature of the formation of a new magnetar.</div>
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The puzzling temporally variable optical and X-ray afterglow of GRB 101024A

The puzzling temporally variable optical and X-ray afterglow of GRB 101024A

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri