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    Was the X-ray Afterglow of GRB 970815 Detected?

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    0312177.pdf (242.8Kb)
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    https://aip.scitation.org/doi/10.1063/1.1810902
    Permanent Link
    https://doi.org/10.1063/1.1810902
    http://hdl.handle.net/11603/19609
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    • UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
    • UMBC Joint Center for Earth Systems Technology (JCET)
    • UMBC Physics Department
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    Author/Creator
    Mirabal, N.
    Halpern, J. P.
    Gotthelf, E. V.
    Mukherjee, R.
    Date
    2004-10-01
    Type of Work
    4 pages
    Text
    conference papers and proceedings preprints
    Citation of Original Publication
    N. Mirabal, J. P. Halpern, E. V. Gotthelf and R. Mukherjee, Was the X‐ray Afterglow of GRB 970815 Detected?, AIP Conference Proceedings 727, 533 (2004); https://doi.org/10.1063/1.1810902
    Rights
    This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
    © 2004 AIP Publishing LLC
    Abstract
    GRB 970815 was a well‐localized gamma‐ray burst (GRB) detected by the All‐Sky Monitor (ASM) on the Rossi X‐Ray Timing Explorer (RXTE) for which no afterglow was identified despite follow‐up ASCA and ROSAT pointings and optical imaging to limiting magnitude R > 23. While an X‐ray source, AX/RX J1606.8+8130, was detected just outside the ASM error box, it was never associated with the GRB because it was not clearly fading and because no optical afterglow was ever discovered. We recently made deep optical observations of the AX/RX J1606.8+8130 position, which is blank to a limit of V > 24.3 and I > 24.0, implying an X‐ray‐to‐optical flux ratio fX/fV > 500. In view of this extreme limit, we analyze and reevaluate the ASCA and ROSAT data and conclude that the X‐ray source AX/RX J1606.8+8130 was indeed the afterglow of GRB 970815, which corresponds to an optically “dark” GRB. Alternatively, if AX/RX J1608+8130 is discovered to be a persistent source, then it could be associated with EGRET source 3EG J1621+8203, whose error box includes this position.


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    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3021


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.