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  Prompt Optical Detection of GRB 050401 with ROTSE-IIIa

Rykoff, E., Aharonian, F., Akerlof, C. W., Alatalo, K., Ashley, M. C. B., Güver, T., et al. (2005). Prompt Optical Detection of GRB 050401 with ROTSE-IIIa. The Astrophysical Journal, 631(2, part 2), L212-L124. Retrieved from http://cdsaas.u-strasbg.fr:2001/ApJ/journal/issues/ApJ/v631n2/62714/brief/62714.abstract.html.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8814-E Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8815-C
Genre: Journal Article

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 Creators:
Rykoff, E.S.1, Author
Aharonian, F.2, Author           
Akerlof, C. W.1, Author
Alatalo, K.1, Author
Ashley, M. C. B.1, Author
Güver, T.1, Author
Horns, Dieter2, Author           
Krimm, H. A.1, Author
Kiziloglü, Ü.1, Author
McKay, T. A.1, Author
Özel, M.1, Author
Phillips, A.1, Author
Quimby, R. M.1, Author
Schaefer, B. E.1, Author
Smith, D. A.1, Author
Swan, H. F.1, Author
Vestrand, W. T.1, Author
Wheeler, J. C.1, Author
Wren, J.1, Author
Yost, S. A.1, Author
Barthelmy, S. D.1, AuthorGehrels, N.1, AuthorGögüs, E.1, Author more..
Affiliations:
1Physics Department, University of Michigan, 2477 Randall Laboratory, 450 Church Street, Ann Arbor, MI 48109-1040 School of Physics, Department of Astrophysics and Optics, University of New South Wales, Sydney, NSW 2052, Australia Istanbul University Science Faculty, Department of Astronomy and Space Sciences, 34119, University-Istanbul, Turkey Department of Physics, Southern Methodist University, Dallas, TX 75275 Department of Physics, Middle East Technical University, Ankara 06531, Turkey Department of Physics, Çanakkale Onsekiz Mart Üniversitesi, Terziolu 17020, Çanakkale, Turkey Department of Astronomy, University of Texas, Austin, TX 78712 Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 Los Alamos National Laboratory, NIS-2, MS-D436, Los Alamos, NM 87545, ou_persistent22              
2Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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Free keywords: gamma rays: bursts
 Abstract: The ROTSE-IIIa telescope at Siding Spring Observatory, Australia, detected prompt optical emission from Swift GRB 050401. We present observations of the early optical afterglow, first detected by the ROTSE-IIIa telescope 33 s after the start of gamma-ray emission, contemporaneous with the brightest peak of this emission. This GRB was neither exceptionally long nor bright. This is the first prompt optical detection of a GRB of typical duration and luminosity. We find that the early afterglow decay does not deviate significantly from the power-law decay observable at later times and is uncorrelated with the prompt gamma-ray emission. We compare this detection with the other two GRBs with prompt observations, GRB 990123 and GRB 041219a. All three bursts exhibit quite different behavior at early times.

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Language(s): eng - English
 Dates: 2005-10-01
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 276593
URI: http://cdsaas.u-strasbg.fr:2001/ApJ/journal/issues/ApJ/v631n2/62714/brief/62714.abstract.html
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Title: The Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 631 (2, part 2) Sequence Number: - Start / End Page: L212 - L124 Identifier: -