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Panchromatic Observations of the Textbook GRB 110205A: Constraining Physical Mechanisms of Prompt Emission and Afterglow

Zheng, W and Shen, R.F. and Sakamoto, T. and Beardmore, A.P. and De Pasquale, M. and Wu, X.F. and Gorosabel, J. and Urata, Y. and Sugita, S. and Zhang, B and Pozanenko, A and Nissinen, M. and Sahu, D.K. and Im, M. and Ukwatta, T.N. and Andreev, M. and Klunko, E. and Volnova, A. and Akerlof, C.W. and Anto, P. and Barthelmy, S.D. and Breeveld, A. and Carsenty, U. and Castillo-Carri´on, S. and Castro-Tirado, A.J. and Chester, M.M. and Chuang, C.J. and Cunniffe, R. and De Ugarte Postigo, A. and Duffard, R. and Flewelling, H. and Gehrels, N. and Guever, T. and Guziy, S. and Hentunen, V.P. and Huang, K.Y. and Jel´ınek, M. and Koch, T.S. and Kub´anek, P. and Kuin, P. and McKay, T.A. and Mottola, S. and Oates, S.R. and O’Brien, P. and Ohno, M. and Page, M.J. and Pandey, S.B. and P´erez del Pulgar, C. and Rujopakarn, W. and Rykoff, E. and Salmi, T. and S´anchez-Ram´ırez, R. and Schaefer, B.E. and Sergeev, A. and Sonbas, E. and Sota, A. and Tello, J.C. and Yamaoka, K. and Yost, S.A. and Yuan, F. (2012) Panchromatic Observations of the Textbook GRB 110205A: Constraining Physical Mechanisms of Prompt Emission and Afterglow. The Astrophysical Journal, 751 (2). The American Astronomical Society. DOI: 10.1088/0004-637X/751/2/90. ISSN 0004-637X.

Full text not available from this repository.

Official URL: http://adsabs.harvard.edu/abs/2012ApJ...751...90Z

Abstract

We present a comprehensive analysis of a bright, long-duration (T90 ∼ 257 s) GRB 110205A at redshift z = 2.22. The optical prompt emission was detected by Swift/UVOT, ROTSE-IIIb, and BOOTES telescopes when the gamma-ray burst (GRB) was still radiating in the γ -ray band, with optical light curve showing correlation with γ -ray data. Nearly 200 s of observations were obtained simultaneously from optical, X-ray, to γ-ray (1 eV to 5 MeV), which makes it one of the exceptional cases to study the broadband spectral energy distribution during the prompt emission phase. In particular, we clearly identify, for the first time, an interesting two-break energy spectrum, roughly consistent with the standard synchrotron emission model in the fast cooling regime. Shortly after prompt emission (∼1100 s), a bright (R = 14.0) optical emission hump with very steep rise (α ∼ 5.5) was observed, which we interpret as the reverse shock (RS) emission. It is the first time that the rising phase of an RS component has been closely observed. The full optical and X-ray afterglow light curves can be interpreted within the standard reverse shock (RS) + forward shock (FS) model. In general, the high-quality prompt and afterglow data allow us to apply the standard fireball model to extract valuable information, including the radiation mechanism (synchrotron), radius of prompt emission (RGRB ∼ 3×1013 cm), initial Lorentz factor of the outflow (Γ0 ∼ 250), the composition of the ejecta (mildly magnetized), the collimation angle, and the total energy budget.

Document Type:Article
Title: Panchromatic Observations of the Textbook GRB 110205A: Constraining Physical Mechanisms of Prompt Emission and Afterglow
Authors:
AuthorsInstitution or Email of Authors
Zheng, Wzwk@umich.edu
Shen, R.F.rfshen@astro.utoronto.ca
Sakamoto, T.NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Beardmore, A.P.Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK
De Pasquale, M.Mullard Space Science Laboratory, University College London, Holmbury Road, Holmbury St. Mary, Dorking RH5 6NT, UK
Wu, X.F.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
Gorosabel, J.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Urata, Y.Institute of Astronomy, National Central University, Chung-Li 32054, Taiwan
Sugita, S.EcoTopia Science Institute, Nagoya University, Furo-cho, chikusa, Nagoya 464-8603, Japan
Zhang, Bzhang@physics.unlv.edu
Pozanenko, ASpace Research Institute (IKI), 84/32 Profsoyuznaya St., Moscow 117997, Russia
Nissinen, M.Taurus Hill Observatory, H¨ark¨am¨aentie 88, 79480 Kangaslampi, Finland
Sahu, D.K.CREST, Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India
Im, M.Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, FPRD, Seoul National University, Shillim-dong, San 56-1,
Ukwatta, T.N.Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
Andreev, M.Terskol Branch of Institute of Astronomy of RAS, Kabardino-Balkaria Republic 361605, Russian Federation
Klunko, E.Institute of Solar-Terrestrial Physics, Lermontov St., 126a, Irkutsk 664033, Russia
Volnova, A.Sternberg Astronomical Institute, Moscow State University, Universitetsky pr., 13, Moscow 119992, Russia
Akerlof, C.W.Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI 48109, USA
Anto, P.CREST, Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India
Barthelmy, S.D.NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Breeveld, A.Mullard Space Science Laboratory, University College London, Holmbury Road, Holmbury St. Mary, Dorking RH5 6NT, UK
Carsenty, U.uri.carsenty@dlr.de
Castillo-Carri´on, S.Department of EVLT, Universidad de M´alaga, Campus de Teatinos, M´alaga, Spain
Castro-Tirado, A.J.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Chester, M.M.Department of Astronomy and Astrophysics, Penn State University, 525 Davey Laboratory, University Park, PA 16802, USA
Chuang, C.J.Institute of Astronomy, National Central University, Chung-Li 32054, Taiwan
Cunniffe, R.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
De Ugarte Postigo, A.Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O, Denmark
Duffard, R.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Flewelling, H.Institute for Astronomy, 2680 Woodlawn Avenue, Honolulu, HI 96822, USA
Gehrels, N.NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Guever, T.Department of Astronomy, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Guziy, S.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Hentunen, V.P.Taurus Hill Observatory, H¨ark¨am¨aentie 88, 79480 Kangaslampi, Finland
Huang, K.Y.Academia Sinica Institute of Astronomy and Astrophysics, Taipei 106, Taiwan
Jel´ınek, M.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Koch, T.S.Department of Astronomy and Astrophysics, Penn State University, 525 Davey Laboratory, University Park, PA 16802, USA
Kub´anek, P.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Kuin, P.Mullard Space Science Laboratory, University College London, Holmbury Road, Holmbury St. Mary, Dorking RH5 6NT, UK
McKay, T.A.Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI 48109, USA
Mottola, S.stefano.mottola@dlr.de
Oates, S.R.Mullard Space Science Laboratory, University College London, Holmbury Road, Holmbury St. Mary, Dorking RH5 6NT, UK
O’Brien, P.Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK
Ohno, M.Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
Page, M.J.Mullard Space Science Laboratory, University College London, Holmbury Road, Holmbury St. Mary, Dorking RH5 6NT, UK
Pandey, S.B.Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263129, India
P´erez del Pulgar, C.Department of EVLT, Universidad de M´alaga, Campus de Teatinos, M´alaga, Spain
Rujopakarn, W.Steward Observatory, The University of Arizona, Tucson, AZ 85721, USA
Rykoff, E.E. O. Lawrence Berkeley National Laboratoy, 1 Cyclotron Road, Berkeley, CA 94720, USA
Salmi, T.Taurus Hill Observatory, H¨ark¨am¨aentie 88, 79480 Kangaslampi, Finland
S´anchez-Ram´ırez, R.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Schaefer, B.E.Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Sergeev, A.Terskol Branch of Institute of Astronomy of RAS, Kabardino-Balkaria Republic 361605, Russian Federation
Sonbas, E.NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Sota, A.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Tello, J.C.Instituto de Astrof´ısica de Andaluc´ıa (IAA-CSIC), 18008 Granada, Spain
Yamaoka, K.Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
Yost, S.A.Department of Physics, College of St. Benedict, Collegeville, MN 56321, USA
Yuan, F.ARC Centre of Excellence for All-sky Astrophysics (CAASTRO
Date:1 June 2012
Journal or Publication Title:The Astrophysical Journal
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:751
DOI:10.1088/0004-637X/751/2/90
Publisher:The American Astronomical Society
ISSN:0004-637X
Status:Published
Keywords:gamma-ray burst: individual (GRB 110205A)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Dr.rer.nat. Uri Carsenty
Deposited On:19 Sep 2012 08:34
Last Modified:20 Mar 2013 19:45

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