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Rising optical afterglows seen by TAROT

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 نشر من قبل Bruce Gendre
 تاريخ النشر 2008
  مجال البحث فيزياء
والبحث باللغة English
 تأليف B. Gendre




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We present the multi-wavelength study of those gamma-ray bursts observed by TAROT. These events are characterized by the presence at early time of a rising in their optical light curves lasting a few hundred of seconds. In one case (GRB 060904B), a flare occurs at similar time in the X-ray band, while in the other cases the X-ray light curves appear smooth during the optical rise. We investigate the possible nature of this behavior and conclude th at a multi-component emission is mandatory to explain the optical-to-X-ray afterglow.



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