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Swift discovered GRB 050713A and slewed promptly to begin observing with itsnarrow field instruments 72.6 seconds after the burst onset, while the promptgamma-ray emission was still detectable in the BAT. Simultaneous emission fromtwo flares is detected in the BAT and XRT. This burst marks just the secondtime that the BAT and XRT have simultaneously detected emission from a burstand the first time that both instruments have produced a well sampled,simultaneous dataset covering multiple X-ray flares. The temporal rise anddecay parameters of the flares are consistent with the internal shockmechanism. In addition to the Swift coverage of GRB 050713A, we report on theKonus-Wind (K-W) detection of the prompt emission in the energy range 18-1150keV, an upper limiting GeV measurement of the prompt emission made by the MAGICimaging atmospheric Cherenkov telescope and XMM-Newton observations of theafterglow. Simultaneous observation between Swift XRT and XMM-Newton produceconsistent results, showing a break in the lightcurve at T+~15ks. Together,these four observatories provide unusually broad spectral coverage of theprompt emission and detailed X-ray follow-up of the afterglow for two weeksafter the burst trigger. Simultaneous spectral fits of K-W with BAT and BATwith XRT data indicate that an absorbed broken powerlaw is often a better fitto GRB flares than a simple absorbed powerlaw. These spectral results togetherwith the rapid temporal rise and decay of the flares suggest that flares areproduced in internal shocks due to late time central engine activity.Comment: 22 pages, 6 tables, 10 figures; Submitted to the Astrophysical  Journa

GRB 050713A: High‐Energy Observations of the Gamma‐Ray Burst Prompt and Afterglow Emission