Počet záznamů: 1

Complicated variations in the early optical afterglow of GRB 090726

  1. 1.
    0355210 - ASU-R 2011 RIV FR eng J - Článek v odborném periodiku
    Šimon, Vojtěch - Polášek, Cyril - Jelínek, M. - Hudec, René - Štrobl, Jan
    Complicated variations in the early optical afterglow of GRB 090726.
    Astronomy & Astrophysics. Roč. 510, February (2010), A49/1-A49/5 ISSN 0004-6361
    Grant CEP: GA ČR GA205/08/1207
    Grant ostatní: GA ČR(CZ) GA102/09/0997; ESA(XE) ESA-PECS project No. 98058
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: gamma-ray burst * radiation mechanisms * plasmas
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 4.410, rok: 2010

    We studied the optical afterglow (OA) of the gamma-ray burst GRB 090726, which we observed by our robotic CCD telescope with the D 50 cm mirror. We explained the superimposed short flare by activity of the central engine. This OA is the representative of the least luminous ones and its initial Lorentz factor may even lie on the lower end of the range observed in GRBs. Neither the dust nor the gaseous component of the circumburst medium underwent any evolution during the decay of this OA.
    Trvalý link: http://hdl.handle.net/11104/0194034