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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Relativistic ejecta from X-ray flash XRF 060218 and the rate of cosmic explosions

Article Abstract:

Radio and X-ray observations of the second-nearest gamma-ray burst (GRB) X-ray flash XRF 060218 associated with supernova SN 2006aj are reported, which reveal that this XRF is a hundred times less energetic but ten times more common than cosmological GRBs. An energy release of [10.sup.48] erg and presence of relativistic ejecta, combined with a black hole or magnetar accretion-fed, rapidly rotating compact source of central engine, distinguish XRF 060218 from ordinary supernovae.

Author: Gehrels, N., Kulkarni, S.R., Berger, E., Sari, R., Price, P.A., Soderberg, A.M., Moon, D.-S., Penprase, B.E., Pooley, G., McCarthy, P.J., Cenko, S.B., Persson, S.E., Rau, A., Fox, D.B., Cameron, P.B., Nakar, E., Chevalier, R.A., Piran, T., Schmidt, B.P., Nousek, J.A., Burrows, D.N., Kasliwal, M., Frail, D., Gal-Yarn, A., Ofek, E.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Usage, Observations, X-rays, Supernovae, Supernovas

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A common origin for cosmic explosions inferred from calorimetry of GRB030329

Article Abstract:

The radio observation of GRB030329 that undertakes calorimetry of the explosion is reported. Given the firm link of GRB030329 with SN2003dh, results indicate a common origin for cosmic explosions in which the energy in the highest-velocity ejecta is extremely variable.

Author: Frail, D.A., Kulkarni, S.R., Berger, E., Fox, D.W., Yost, S., Sari, R., Price, P.A., Soderberg, A.M., Pooley, G., McIntyre, V., Wark, R.M.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
Environmental aspects, Astronomical research

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The bright optical afterglow of the nearby gamma-ray burst of 29 March 2003

Article Abstract:

The afterglow resulting from a nearby gamma-ray burst (GRB) is discussed. These afterglow properties are discussed in relation to the GRB of 29 March 2003.

Author: Kulkarni, S.R., Fox, D.W., Price, P.A.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003

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Subjects list: Research, Gamma rays, Cosmic rays
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