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Zoology and wildlife conservation

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Discovery of an X-ray afterglow associated with the gamma-ray burst of 28 February 1997

Article Abstract:

An X-ray afterglow was discovered by the Beppo-SAX satellite following the gamma-ray burst on Feb 28 1997. A substantial proportion of the gamma-ray burst's total energy was contained in the X-ray transient. A multi-wavelength observational campaign was inititated by the quick detection of the gamma-ray burst that led to the discovery of a fading optical transient. The Beppo-SAX measurement explains the link between the location capability of radio, optical and X-ray astronomy and the gamma-ray phenomenology.

Author: Butler, R.C., Cusumano, G., Giommi, P., Antonelli, L.A., Palazzi, E., Frontera, F., Nicastro, L., Heise, J., Costa, E., Feroci, M., Piro, L., Zavattini, G., Parmar, A., in 't Zand, J., Fiore, F., Cinti, M.N., Dal Fiume, D., Orlandini, M., Rapisarda, M., Jager, R., Owens, A., Molendi, S., Maccarone, M.C., Giarrusso, S., Coletta, A., Muller, J.M.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
Observations, Letter to the Editor, X-ray astronomy

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The energetic afterglow of the gamma-ray burst of 14 December 1997

Article Abstract:

Infrared observations of the fading optical transient connected with the gamma-ray burst of Dec 14, 1997, known as GRB971214, aimed mainly to infer fundamental parameters of the burst. Observations were carried out in the near-infrared band and at radio wavelengths. The models used in this research indicate that the afterglow emission arises from non-radiative shocks. The afterglow emission is similar in nature to the emission from supernovae. However, it is more energetic by two orders of magnitude.

Author: Frail, D.A., Kulkarni, S.R., Murphy, T., Djorgovski, S.G., Bloom, J.S., Waxman, E., Frontera, F., Nicastro, L., Feroci, M., Ramaprakash, A.N., Goodrich, R., Koresko, C., Kuchner, M., Neugebauer, G., Eikenberry, S.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
Gamma rays, Compton effect

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Subjects list: Gamma ray astronomy
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