The effect of magnetic fields on gamma-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999

Article Abstract:

Gamma-ray bursts (GRBs) are believed to be due to relativistic outflow of particles from a major explosion interacting with material around the explosion site. Gamma-ray, optical, infrared, submillimetre, millimetre and radio observations of the GRB990123 burst and its afterglow suggest that the initial and afterglow emissions are linked to three distinct areas in the fireball. The peak flux of the afterglow was lower in frequency than other bursts, explaining the short-lived radio emission.

Author: Pandey, A.K., Foster, Mike, Ibbetson, P., Davies, J.K., Kouveliotou, C., Briggs, M.S., Green, S.F., Geballe, T.R., Pooley, G., Hurley, K., Rol, E., Tanvir, N., Castro-Tirado, A.J., Rhoads, J., Vreeswijk, P.M., Ofek, E.O., Leibowitz, E., van Paradijs, J., Strom, R.G., Telting, J., Rutten, R.G.M., Bremer, M., Heise, J., Galama, T.J., Robinson, C., Wijers, R.A.M., Band, D., Preece, R.D., Smith, I.a., Tilanus, R.P.J., de Bruyn, A.G., Packham, C., Swaters, R., Fassia, A., Sagar, R., Nilakshi, Yadav, R.K.S., Falco, E., Petry, C., Impey, C., Bhattacharya, D.

Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999

Magnetic fields

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An optical supernova associated with the X-ray flash XRF 060218

Article Abstract:

The optical discovery and follow-up observations of the type Ic supernova SN 2006aj associated with X-ray flash XRF 060218 are reported, which reveal that supernova 2006aj is fundamentally less luminous than the gamma-ray burst (GRB)-supernovae, but brighter than many supernovae not accompanied by a GRB. Data, radio and X-ray observations suggest that XRF 060218 is intrinsically a weak and soft event, rather than a classical GRB observed off-axis.

Author: Li, W., Ledoux, C., Wang, L., Fruchter, A.S., Kouveliotou, C., Hjorth, J., Sollerman, J., Klose, S., Levan, A., Wijers, R.A.M.J., Woosley, S.E., Tanvir, N.R., Hainaut, O., Castro-Tirado, A.J., Nomoto, K., Pian, E., Mazzali, P.A., Masetti, N., Ferrero, P., Palazzi, E., Ramirez-Ruiz, E., Deng, J., Filippenko, A.V., Foley, R.J., Fynbo, J.P.U., Kann, D.A., Patat, F., Sauer, D.N., Vreeswijk, P.M., Guenther, E.W., O'Brien, P., Dumas, C., Wong, D.S., Baade, D., Amati, L., Cappellaro, E., Ellison, S., Frontera, F., Greiner, J., Kawabata, K.

Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006

Science & research, Usage, Observations, X-rays, Supernovae, Supernovas

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Subjects list: Research, Gamma rays

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Abstracts

Zoology and wildlife conservation

The effect of magnetic fields on gamma-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999

An optical supernova associated with the X-ray flash XRF 060218