The anomalous early afterglow of GRB 050801

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dc.contributor.authorRykoff, E.
dc.contributor.authorMangano, V.
dc.contributor.authorYost, S.
dc.contributor.authorSari, R.
dc.contributor.authorAharonian, F.
dc.contributor.authorAkerlof, C.
dc.contributor.authorAshley, M.
dc.contributor.authorBarthelmy, S.
dc.contributor.authorBurrows, D.
dc.contributor.authorGehrels, N.
dc.contributor.authorGogus, E.
dc.contributor.authorGuver, T.
dc.contributor.authorHorns, D.
dc.contributor.authorKiziloglu, U.
dc.contributor.authorKrimm, H.
dc.contributor.authorMcKay, T.
dc.contributor.authorOzel, M.
dc.contributor.authorPhillips, A.
dc.contributor.authorQuimby, R.
dc.contributor.authorRowell, G.
dc.contributor.authoret al.
dc.date.issued2006
dc.description© 2006 The American Astronomical Society. All rights reserved.
dc.description.abstractThe ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first ∼250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.
dc.description.statementofresponsibilityE. S. Rykoff, V. Mangano, S. A. Yost, R. Sari, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, S. D. Barthelmy, D. N. Burrows, N. Gehrels, E. Göüş, T. Güver, D. Horns, Ü. Kızılolu, H. A. Krimm, T. A. McKay, M. Özel, A. Phillips, R. M. Quimby, G. Rowell, W. Rujopakarn, B. E. Schaefer, D. A. Smith, H. F. Swan, W. T. Vestrand, J. C. Wheeler, J. Wren, and F. Yuan
dc.identifier.citationThe Astrophysical Journal: an international review of astronomy and astronomical physics, 2006; 638(1):L5-L8
dc.identifier.doi10.1086/501007
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.orcidRowell, G. [0000-0002-9516-1581]
dc.identifier.urihttp://hdl.handle.net/2440/37596
dc.language.isoen
dc.publisherUniv Chicago Press
dc.source.urihttps://doi.org/10.1086/501007
dc.titleThe anomalous early afterglow of GRB 050801
dc.typeJournal article
pubs.publication-statusPublished

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