The Early Optical Brightening in the GRB 071010B Page: 3 of 17
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The Early Optical Brightening in the GRB 071010B
J. H. Wang', M. E. Schwamb2, K. Y. Huang', C. Y. Wen', Z. W. Zhang3, S. Y. Wang', W.
P. Chen3, F. B. Bianco4, R. Dave', M. J. Lehner",4, S. L. Marshall6'7, R. Porrata', C.
Alcock5, Y. I. Byun9, K. H. Cook7, S. K. King', T. Lee', and Y. Urata'10
We report the detection of early (60-230 s) optical emission of the gamma-ray
burst afterglow of GRB 071010B. No significant correlation with the prompt a-ray
emission was found. Our high time-resolution data combining with other mea-
surements within 2 days after the burst indicate that GRB 071010B is composed
of a weak early brightening (a ~ 0.6), probably caused by the peak frequency
passing through the optical wavelengths, followed by a decay (a - -0.51), at-
tributed to continuous energy injection by patchy jets.
Subject headings: gamma-ray: burst : afterglow
With the launch of the Swift a-ray explorer (Gehrels et al. 2004) in late 2004, great
progress has been made in the study of early optical afterglow of gamma-ray bursts (GRBs).
lInstitute of Astronomy and Astrophysics, Academia Sinica, PO BOX 23-141, Taipei 106, Taiwan, Re-
public of China
2Division of Geological and Planetary Sciences, California Institute of Technology, 1201 E. California
Blvd., Pasadena, CA 91125
3Institute of Astronomy, National Central University, Chung-Li 32054, Taiwan, Republic of China
4Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138
5Initiative in Innovative Computing, Harvard University, 60 Oxford St, Cambridge, MA 02138
6Kavli Institute of Particle Astrophysics and Cosmology, 2575 Sand Hill Road, MS 29,Menlo Park, CA
7Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore,
'Department of Physics, University of California at Berkeley, Berkeley, CA 94270
9Department of Astronomy, Yonsei University, 134 Shinchon, Seoul 120-749, Korea
10Department of Physics, Saitama University, Shimookubo, Saitama 338-8570 Japan
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Wang, J H; Schwamb, M E; Huang, K Y; Wen, C Y; Zhang, Z W; Wang, S Y et al. The Early Optical Brightening in the GRB 071010B, article, April 8, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc901993/m1/3/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.