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GRB 020410: A Gamma‐Ray Burst Afterglow Discovered by Its Supernova Light

A. J. LevanDepartment of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKP. NugentLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720A. S. FruchterSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218I. BurudSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218David BranchDepartment of Physics and Astronomy, University of Oklahoma, Norman, OK 73019James E. RhoadsSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218A. J. Castro‐TiradoInstituto de Astrofísica de Andalucía (IAA-CSIC), Apartado de Correos, 3.004, E-18.080 Granada, SpainJavier GorosabelInstituto de Astrofísica de Andalucía (IAA-CSIC), Apartado de Correos, 3.004, E-18.080 Granada, SpainJose Maria Castro CeronSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218S. E. ThorsettDepartment of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064C. KouveliotouNASA Marshall Space Flight Center, National Space Science and Technology Center (NSSTC), SD-50, 320 Sparkman Drive, Huntsville, AL 35805S. GolenetskiiIoffe Physico-TechniInstitute, St. Petersburg 194021, RussiaJ. P. U. FynboDepartment of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK-8000 Aarhus C, DenmarkP. GarnavichDepartment of Physics, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, IN 46556K. L. PageSwift Science Center, Goddard Space Flight Center, Code 660, 1, Greenbelt, MD 20771-0003J. HjorthNiels Bohr Institute, Astronomical Observatory, University of Copenhagen, Juliane Maries Vej 30, DK-2100, Copenhagen, DenmarkP. MøllerEuropean Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Munchen, GermanyE. PianOsservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34131 Trieste, ItalyN. R. TanvirDepartment of Physical Science, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UKM. UlanovIoffe Physico-TechniInstitute, St. Petersburg 194021, RussiaR. A. M. J. WijersAstronomical Institute, University of Amsterdam, Kruislann 403, 1098 SJ Amsterdam, NetherlandsS. E. WoosleyDepartment of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064

2005en

ABI

Annotatsiya

We present the discovery and monitoring of the optical transient (OT) associated with GRB 020410. The fading OT was found by Hubble Space Telescope (HST) observations taken 28 and 65 days after burst at a position consistent with the X-ray afterglow. Subsequent re-examination of early ground based observations revealed that a faint OT was present 6 hours after burst, confirming the source association with GRB 020410. A deep non-detection after one week requires that the OT re-brightened between day 7 and day 28, and further late time HST data taken approximately 100 days after burst imply that it is very red.We compare both the flux and color of the excess with supernova models and show that the data are best explained by the presence of a Type Ib/c supernova at a redshift z ~ 0.5, which occured roughly coincident with the day of GRB.

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DOI: 10.1086/428657

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