Статья

GRB 060505: A Possible Short‐Duration Gamma‐Ray Burst in a Star‐forming Region at a Redshift of 0.09

E. O. OfekDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125S. B. CenkoDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125A. Gal‐YamDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125D. B. FoxDepartment of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802Ehud NakarDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125A. RauDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125D. A. FrailNational Radio Astronomy Observatory, Socorro, NM 87801S. R. KulkarniDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125P. A. PriceInstitute of Astronomy, University of Hawaii, Honolulu, HI 96822-1897B. SchmidtResearch School of Astronomy and Astrophysics, Mount Stromlo Observatory, Weston, ACT 2611, AustraliaA. M. SoderbergDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125B. A. PetersonResearch School of Astronomy and Astrophysics, Mount Stromlo Observatory, Weston, ACT 2611, AustraliaE. BergerHubble FellowKeren SharonSchool of Physics and Astronomy and the Wise Observatory, Tel Aviv University, Tel Aviv 69978, IsraelOhad ShemmerDepartment of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802Bryan E. PenpraseDepartment of Physics and Astronomy, Pomona College, Claremont, CA 91711Roger A. ChevalierDepartment of Astronomy, University of Virginia, Charlottesville, VA 22903Peter J. BrownDepartment of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802D. N. BurrowsDepartment of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802N. GehrelsNASA Goddard Space Flight Center, Greenbelt, MD 20771Fiona HarrisonDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125K. L. PageNASA Goddard Space Flight Center, Greenbelt, MD 20771V. ManganoINAF, Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, I-90146 Palermo, ItalyPatrick J. McCarthyObservatories of the Carnegie Institution of Washington, Pasadena, CA 91101Dae‐Sik MoonDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125J. A. NousekDepartment of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802S. E. PerssonObservatories of the Carnegie Institution of Washington, Pasadena, CA 91101Tsvi PiranRacah Institute of Physics, Hebrew University, Jerusalem 91904, IsraelRe’em SariDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125

2007en

ABI

Аннотация

On 2006 May 5, a four second duration, low energy, ~10^49 erg, Gamma-Ray Burst (GRB) was observed, spatially associated with a z=0.0894 galaxy. Here, we report the discovery of the GRB optical afterglow and observations of its environment using Gemini-south, Hubble Space Telescope (HST), Chandra, Swift and the Very Large Array. The optical afterglow of this GRB is spatially associated with a prominent star forming region in the Sc-type galaxy 2dFGRS S173Z112. Its proximity to a star forming region suggests that the progenitor delay time, from birth to explosion, is smaller than about 10 Myr. Our HST deep imaging rules out the presence of a supernova brighter than an absolute magnitude of about -11 (or -12.6 in case of ``maximal'' extinction) at about two weeks after the burst, and limits the ejected mass of radioactive Nickel 56 to be less than about 2x10^-4 solar mass (assuming no extinction). Although it was suggested that GRB 060505 may belong to a new class of long-duration GRBs with no supernova, we argue that the simplest interpretation is that the physical mechanism responsible for this burst is the same as for short-duration GRBs.

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Идентификаторы

DOI: 10.1086/518082

Цитирования и источники

Цитирований: 2Использованных источников: 0

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