GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8

A. A. Volnova; A. S. Pozanenko; J. Gorosabel; D. A. Perley; D. D. Frederiks; D. A. Kann; V. V. Rumyantsev; V. V. Biryukov; V. V. Biryukov; A. J. Castro-Tirado; P. Ferrero; S. V. Golenetskii; S. Klose; V. M. Loznikov; P. Yu. Minaev; B. Stecklum; D. S. Svinkin; A. E. Tsvetkova; Antonio de Ugarte Postigo; M. V. Ulanov

doi:10.1093/mnras/stu999

GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8

A. A. Volnova, A. S. Pozanenko, J. Gorosabel, D. A. Perley, D. D. Frederiks, D. A. Kann, V. V. Rumyantsev, V. V. Biryukov, V. V. Biryukov, A. J. Castro-Tirado, P. Ferrero, S. V. Golenetskii, S. Klose, V. M. Loznikov, P. Yu. Minaev, B. Stecklum, D. S. Svinkin, A. E. Tsvetkova, Antonio de Ugarte Postigo, M. V. Ulanov

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9 Citations (Scopus)

Abstract

We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the Shajn, Swift/UVOT, Tautenburg, NOT, Gemini and Keck I telescopes in the optical and near-infrared bands. The burst was detected only in gamma- and X-rays and neither a prompt optical nor a radio afterglow was detected down to deep limits. We identified the host galaxy of the burst, which is a typical Lyman-break galaxy (LBG) with R-magnitude of 24.06 ± 0.10 mag. A redshift of the galaxy of z=2.77+0.15−0.20 is measured photometrically due to the presence of a clear, strong Lyman-break feature. The host galaxy is a small starburst galaxy with moderate intrinsic extinction (A_V = 0.3) and has a star formation rate of ∼60 M_⊙ yr⁻¹ typical for LBGs. It is one of the few cases where a GRB host has been found to be a classical LBG. Using the redshift we estimate the isotropic-equivalent radiated energy of the burst to be E_iso = (1.15 ± 0.20) × 10⁵⁴ erg. We also provide evidence in favour of the hypothesis that the darkness of GRB 051008 is due to local absorption resulting from a dense circumburst medium.

Original language	English
Journal	Royal Astronomical Society. Monthly Notices
Volume	442
Issue number	3
Pages (from-to)	2586-2599
Number of pages	14
ISSN	0035-8711
DOIs	https://doi.org/10.1093/mnras/stu999
Publication status	Published - 11 Aug 2014

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10.1093/mnras/stu999

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Volnova, A. A., Pozanenko, A. S., Gorosabel, J., Perley, D. A., Frederiks, D. D., Kann, D. A., Rumyantsev, V. V., Biryukov, V. V., Biryukov, V. V., Castro-Tirado, A. J., Ferrero, P., Golenetskii, S. V., Klose, S., Loznikov, V. M., Minaev, P. Y., Stecklum, B., Svinkin, D. S., Tsvetkova, A. E., Ugarte Postigo, A. D., & Ulanov, M. V. (2014). GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8. Royal Astronomical Society. Monthly Notices, 442(3), 2586-2599. https://doi.org/10.1093/mnras/stu999

Volnova, AA, Pozanenko, AS, Gorosabel, J, Perley, DA, Frederiks, DD, Kann, DA, Rumyantsev, VV, Biryukov, VV, Biryukov, VV, Castro-Tirado, AJ, Ferrero, P, Golenetskii, SV, Klose, S, Loznikov, VM, Minaev, PY, Stecklum, B, Svinkin, DS, Tsvetkova, AE, Ugarte Postigo, AD & Ulanov, MV 2014, 'GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8', Royal Astronomical Society. Monthly Notices, vol. 442, no. 3, pp. 2586-2599. https://doi.org/10.1093/mnras/stu999

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title = "GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8",

abstract = "We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the Shajn, Swift/UVOT, Tautenburg, NOT, Gemini and Keck I telescopes in the optical and near-infrared bands. The burst was detected only in gamma- and X-rays and neither a prompt optical nor a radio afterglow was detected down to deep limits. We identified the host galaxy of the burst, which is a typical Lyman-break galaxy (LBG) with R-magnitude of 24.06 ± 0.10 mag. A redshift of the galaxy of z=2.77+0.15−0.20 is measured photometrically due to the presence of a clear, strong Lyman-break feature. The host galaxy is a small starburst galaxy with moderate intrinsic extinction (AV = 0.3) and has a star formation rate of ∼60 M⊙ yr−1 typical for LBGs. It is one of the few cases where a GRB host has been found to be a classical LBG. Using the redshift we estimate the isotropic-equivalent radiated energy of the burst to be Eiso = (1.15 ± 0.20) × 1054 erg. We also provide evidence in favour of the hypothesis that the darkness of GRB 051008 is due to local absorption resulting from a dense circumburst medium. ",

author = "Volnova, {A. A.} and Pozanenko, {A. S.} and J. Gorosabel and Perley, {D. A.} and Frederiks, {D. D.} and Kann, {D. A.} and Rumyantsev, {V. V.} and Biryukov, {V. V.} and Biryukov, {V. V.} and Castro-Tirado, {A. J.} and P. Ferrero and Golenetskii, {S. V.} and S. Klose and Loznikov, {V. M.} and Minaev, {P. Yu.} and B. Stecklum and Svinkin, {D. S.} and Tsvetkova, {A. E.} and {Ugarte Postigo}, {Antonio de} and Ulanov, {M. V.}",

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TY - JOUR

T1 - GRB 051008

T2 - a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z = 2.8

AU - Volnova, A. A.

AU - Pozanenko, A. S.

AU - Gorosabel, J.

AU - Perley, D. A.

AU - Frederiks, D. D.

AU - Kann, D. A.

AU - Rumyantsev, V. V.

AU - Biryukov, V. V.

AU - Castro-Tirado, A. J.

AU - Ferrero, P.

AU - Golenetskii, S. V.

AU - Klose, S.

AU - Loznikov, V. M.

AU - Minaev, P. Yu.

AU - Stecklum, B.

AU - Svinkin, D. S.

AU - Tsvetkova, A. E.

AU - Ugarte Postigo, Antonio de

AU - Ulanov, M. V.

PY - 2014/8/11

Y1 - 2014/8/11

N2 - We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the Shajn, Swift/UVOT, Tautenburg, NOT, Gemini and Keck I telescopes in the optical and near-infrared bands. The burst was detected only in gamma- and X-rays and neither a prompt optical nor a radio afterglow was detected down to deep limits. We identified the host galaxy of the burst, which is a typical Lyman-break galaxy (LBG) with R-magnitude of 24.06 ± 0.10 mag. A redshift of the galaxy of z=2.77+0.15−0.20 is measured photometrically due to the presence of a clear, strong Lyman-break feature. The host galaxy is a small starburst galaxy with moderate intrinsic extinction (AV = 0.3) and has a star formation rate of ∼60 M⊙ yr−1 typical for LBGs. It is one of the few cases where a GRB host has been found to be a classical LBG. Using the redshift we estimate the isotropic-equivalent radiated energy of the burst to be Eiso = (1.15 ± 0.20) × 1054 erg. We also provide evidence in favour of the hypothesis that the darkness of GRB 051008 is due to local absorption resulting from a dense circumburst medium.

AB - We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the Shajn, Swift/UVOT, Tautenburg, NOT, Gemini and Keck I telescopes in the optical and near-infrared bands. The burst was detected only in gamma- and X-rays and neither a prompt optical nor a radio afterglow was detected down to deep limits. We identified the host galaxy of the burst, which is a typical Lyman-break galaxy (LBG) with R-magnitude of 24.06 ± 0.10 mag. A redshift of the galaxy of z=2.77+0.15−0.20 is measured photometrically due to the presence of a clear, strong Lyman-break feature. The host galaxy is a small starburst galaxy with moderate intrinsic extinction (AV = 0.3) and has a star formation rate of ∼60 M⊙ yr−1 typical for LBGs. It is one of the few cases where a GRB host has been found to be a classical LBG. Using the redshift we estimate the isotropic-equivalent radiated energy of the burst to be Eiso = (1.15 ± 0.20) × 1054 erg. We also provide evidence in favour of the hypothesis that the darkness of GRB 051008 is due to local absorption resulting from a dense circumburst medium.

U2 - 10.1093/mnras/stu999

DO - 10.1093/mnras/stu999

M3 - Journal article

SN - 0035-8711

VL - 442

SP - 2586

EP - 2599

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

IS - 3

ER -