1. The afterglow, redshift and extreme energetics of the gamma-ray burst of 23 January 1999
- Author
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Kulkarni, S.R., Djorgovski, S.G., Odewahn, S.C., Bloom, J.S., Gal, R.R., Koresko, C.D., Harrison, F.A., Lubin, L.M., Armus, L., Sari, R., Illingworth, G.D., Kelson, D.D., Magee, D.K., van Dokkum, P.G., Frail, D.A., Mulchaey, J.s., Malkan, M.A., McClean,I.S., Teplitz, H.I., Koerner, D., Kirkpatrick D., Kobayshi, N., Yadigaroglu, I.A., Halpern, J., Piran, T., Goodrich, R.w., Chaffee, F.H., Feroci, Mi, and Costa. E.
- Subjects
Gamma rays -- Research ,Cosmology -- Research ,Environmental issues ,Science and technology ,Zoology and wildlife conservation - Abstract
Long-lived emission or afterglow, has been detected from gamma-ray bursts at cosmological distances with redshifts, z, ranging from one to three. Optical and near-infrared observations of the afterglow of GRB990123 have determined a redshift of z>1.6 which is the brightest gamma-ray burst. The data may provide evidence of beamed radiation, rather than isotropic radiation.
- Published
- 1999