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The origin of the prompt optical emission in GRB 060111B
Authors:G Stratta  A Pozanenko  JL Atteia  A Klotz  S Basa  B Gendre  F Verrecchia  M Boër  S Cutini  M Henze  S Holland  M Ibrahimov  F Ienna  I Khamitov  S Klose  V Rumyantsev  V Biryukov  F Vachier  S Arnouts  D Perley
Institution:1. ASDC, ASI Science Data Center, via Galileo Galilei, 00044 Frascati, Italy;2. Space Research Institute IKI, 117997, 84/32 Profsoyuznaya Str., Moscow, Russia;3. LATT, Univ. de Toulouse, CNRS, 14 Avenue Edouard Belin, 31400 Toulouse, France;4. CESR, Univ. de Toulouse, CNRS, UMR 5187, 9 Av du Colonel Roche, BP 44346, 31028 Toulouse, France;5. LAM/OAM, Ple de l’Etoile Site de Chteau-Gombert 38, rue Frdric Joliot-Curie, 13388 Marseille, France;6. OHP, Observatoire de Haute Provence, 04870 St. Michel l’Observatoire, France;g Thüeringer Landessternwarte, Sternwarte 5, D-07778 Tautenburg, Germany;h NASA, Goddard Space Flight Center, 130 Greenbelt, MD 20771, USA;i Ulugh Beg Astronomical Institute, 33 Astronomicheskaya Str., Tashkent 100052, Uzbekistan;j TÜBITAK National Observatory, Akdeniz Üniversitesi Yerleskesi, 07058 Antalya, Turkey;k SRI Crimean Astrophysical Observatory, Nauchny, Scientific Research Institute, Crimea 98409, Ukraine;l Crimean Laboratory of the Sternberg Astronomical Institute, Nauchny, Crimea 98409, Ukraine;m IMCCE, Observatoire de Paris, 5 Place Jules Janssen, 92190 Meudon, Paris, France;n Canada France Hawaii Telescope Corporation, 65-1238 Mamalahoa Hwy, Kamuela, HI 96743-8432, USA;o Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Abstract:The detection of a bright optical emission measured with good temporal resolution during the prompt phase makes GRB 060111B a rare event that is especially useful for constraining theories of the prompt optical emission. Comparing this burst with other GRBs with evidence of optical peaks, we find that the optical peak epoch (tp) is anti-correlated with the high energy burst energetic assuming an isotropic energy release (Eiso) in agreement with Liang et al. (2009), and that the steeper is the post-peak afterglow decay, the less is the agreement with the correlation. GRB 060111B is among the latters and it does not match the correlation. The Cannonball scenario is also discussed and we find that this model cannot be excluded for GRB 060111B.
Keywords:Gamma-ray burst  Non-thermal radiation
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