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A GTC study of the afterglow and host galaxy of the short-duration GRB 100816A

  • D. Pérez-Ramírez (a1), J.P. Norris (a2), J. Gorosabel (a3) (a4) (a5), A.J. Castro-Tirado (a3), L. Hernández-García (a3), A. de Ugarte Postigo (a3), S. Guziy (a6), J.C. Tello (a3), R. Sánchez-Ramírez (a3) and P. Ferrero (a7)...

Abstract

We present the results from an optical monitoring campaign aimed at studying the afterglow properties of the short GRB 100816A. We implemented a new way of processing the Swift-BAT data, and based on it we reclassified this burst as short, discarding the initial classification as long. Observations were carried out mainly with the GTC Telescope within the four following days after the burst to investigate the optical photometry of its afterglow, and a year later to localize the host. We completed the optical imaging with the 1.23 m and 3.5 m CAHA Telescopes. We built and fitted the nIR-optical SED for the characterization of the host. The best fit of the SED (χ2/d.o.f. = 1.656) obtained for assumed values of a solar metallicity, and an extinction of AV = 0.2mag is obtained for a starburst galaxy with a dominant stellar population aging about 360 Myr.

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A GTC study of the afterglow and host galaxy of the short-duration GRB 100816A

  • D. Pérez-Ramírez (a1), J.P. Norris (a2), J. Gorosabel (a3) (a4) (a5), A.J. Castro-Tirado (a3), L. Hernández-García (a3), A. de Ugarte Postigo (a3), S. Guziy (a6), J.C. Tello (a3), R. Sánchez-Ramírez (a3) and P. Ferrero (a7)...

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