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

doi:10.1063/1.2774894

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

Department of Physics

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

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 β_OX = 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 language	English
Title of host publication	The Multicolored Landscape of Compact Objects and their Explosive origins
Editors	L. A. Antonelli, G. A. Israel, L. Piersanti, A. Tornambe
Place of Publication	U. S. A.
Publisher	American Institute of Physics
Pages	449-452
Number of pages	4
ISBN (Print)	9780735404342
DOIs	https://doi.org/10.1063/1.2774894
Publication status	Published - 7 Oct 2007
Event	THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS - Cefalu, Sicily, Italy Duration: 11 Jun 2006 → 24 Jun 2006

Publication series

Name	AIP Conference Proceedings
Volume	924

Conference

Conference	THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS
Country/Territory	Italy
City	Cefalu, Sicily
Period	11/06/06 → 24/06/06

Keywords

Gamma-ray bursts

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.2774894

Cite this

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

Understanding the nature of dark bursts with the afterglow of GRB 060108. / Oates, S. R.; Mundell, C. G.; Piranomonte, S. et al.
The Multicolored Landscape of Compact Objects and their Explosive origins. ed. / L. A. Antonelli; G. A. Israel; L. Piersanti; A. Tornambe. U. S. A.: American Institute of Physics, 2007. p. 449-452 (AIP Conference Proceedings; Vol. 924).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Oates, SR, Mundell, CG, Piranomonte, S, Page, KL, 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 LA Antonelli, GA Israel, L Piersanti & A Tornambe (eds), The Multicolored Landscape of Compact Objects and their Explosive origins. AIP Conference Proceedings, vol. 924, American Institute of Physics, U. S. A., pp. 449-452, THE MULTICOLORED LANDSCAPE OF COMPACT OBJECTS AND THEIR EXPLOSIVE ORIGINS, Cefalu, Sicily, Italy, 11/06/06. https://doi.org/10.1063/1.2774894

Oates SR, Mundell CG, Piranomonte S, Page KL, De Pasquale M, Monfardini A et al. Understanding the nature of dark bursts with the afterglow of GRB 060108. In Antonelli LA, Israel GA, Piersanti L, Tornambe A, editors, The Multicolored Landscape of Compact Objects and their Explosive origins. U. S. A.: American Institute of Physics. 2007. p. 449-452. (AIP Conference Proceedings). doi: 10.1063/1.2774894

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AU - Oates, S. R.

AU - Mundell, C. G.

AU - Piranomonte, S.

AU - Page, K. L.

AU - De Pasquale, M.

AU - Monfardini, A.

AU - Melandri, A.

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AU - Guidorzi, C.

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AB - 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.

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

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