Was the X-ray Afterglow of GRB 970815 Detected?

dc.contributor.authorMirabal, N.
dc.contributor.authorHalpern, J. P.
dc.contributor.authorGotthelf, E. V.
dc.contributor.authorMukherjee, R.
dc.date.accessioned2020-09-08T18:06:43Z
dc.date.available2020-09-08T18:06:43Z
dc.date.issued2004-10-01
dc.description.abstractGRB 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.en_US
dc.description.urihttps://aip.scitation.org/doi/10.1063/1.1810902en_US
dc.format.extent4 pagesen_US
dc.genreconference papers and proceedings preprintsen_US
dc.identifierdoi:10.13016/m2s5pf-ufsb
dc.identifier.citationN. 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/10.1063/1.1810902en_US
dc.identifier.urihttps://doi.org/10.1063/1.1810902
dc.identifier.urihttp://hdl.handle.net/11603/19609
dc.language.isoen_USen_US
dc.publisherAIP publishingen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology (JCET)
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.rightsThis 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.
dc.rights© 2004 AIP Publishing LLC
dc.titleWas the X-ray Afterglow of GRB 970815 Detected?en_US
dc.typeTexten_US

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