Understanding the nature of dark bursts with the afterglow of GRB 060108

S. R. Oates, C. G. Mundell, S. Piranomonte, K. L. Page, M. De Pasquale, A. Monfardini, A. Melandri, S. Zane, C. Guidorzi, D. Malesani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present observations of GRB 060108, the 100th burst detected by Swift. The optical afterglow was found to be below UVOT detection limits within the first 100 s, and the ratio of X-ray and R band measurements at ∼ 1000 s after the trigger gives a spectral index βOX = 0.45, which makes this burst "dark" according to the Jakobbson classification. We derive a maximum photometric redshift of z<3.2, which excludes a high redshift as a possible cause of the observed darkness, and we find that the most likely explanation is a combination of intrinsic faintness, a hard optical to X-ray spectrum and dust extinction.

Original languageEnglish
Title of host publicationThe Multicolored Landscape of Compact Objects and their Explosive origins
EditorsL. A. Antonelli, G. A. Israel, L. Piersanti, A. Tornambe
Place of PublicationU. S. A.
PublisherAmerican Institute of Physics
Pages449-452
Number of pages4
ISBN (Print)9780735404342
DOIs
Publication statusPublished - 7 Oct 2007
EventTHE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS - Cefalu, Sicily, Italy
Duration: 11 Jun 200624 Jun 2006

Publication series

NameAIP Conference Proceedings
Volume924

Conference

ConferenceTHE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS
CountryItaly
CityCefalu, Sicily
Period11/06/0624/06/06

Keywords

  • Gamma-ray bursts

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Oates, S. R., Mundell, C. G., Piranomonte, S., Page, K. L., De Pasquale, M., Monfardini, A., Melandri, A., Zane, S., Guidorzi, C., & Malesani, D. (2007). Understanding the nature of dark bursts with the afterglow of GRB 060108. In L. A. Antonelli, G. A. Israel, L. Piersanti, & A. Tornambe (Eds.), The Multicolored Landscape of Compact Objects and their Explosive origins (pp. 449-452). (AIP Conference Proceedings; Vol. 924). American Institute of Physics. https://doi.org/10.1063/1.2774894