Broadband study of GRB 091127: A sub-energetic burst at higher redshift?

E. Troja; T. Sakamoto; C. Guidorzi; J. P. Norris; A. Panaitescu; S. Kobayashi; N. Omodei; J. C. Brown; D. N. Burrows; P. A. Evans; N. Gehrels; F. E. Marshall; N. Mawson; A. Melandri; C. G. Mundell; S. R. Oates; V. Pal'Shin; R. D. Preece; J. L. Racusin; I. A. Steele; N. R. Tanvir; V. Vasileiou; C. Wilson-Hodge; K. Yamaoka

doi:10.1088/0004-637X/761/1/50

Broadband study of GRB 091127: A sub-energetic burst at higher redshift?

E. Troja, T. Sakamoto, C. Guidorzi, J. P. Norris, A. Panaitescu, S. Kobayashi, N. Omodei, J. C. Brown, D. N. Burrows, P. A. Evans, N. Gehrels, F. E. Marshall, N. Mawson, A. Melandri, C. G. Mundell, S. R. Oates, V. Pal'Shin, R. D. Preece, J. L. Racusin, I. A. SteeleN. R. Tanvir, V. Vasileiou, C. Wilson-Hodge, K. Yamaoka

Astronomy & Astrophysics

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Abstract

GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z = 0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the context of the GRB/SN association. While the high luminosity of the prompt emission and standard afterglow behavior are typical of cosmological long GRBs, its low-energy release (E γ < 3 × 10 ⁴⁹ erg), soft spectrum, and unusual spectral lag connect this GRB to the class of sub-energetic bursts. We discuss the suppression of high-energy emission in this burst, and investigate whether this behavior could be connected with the sub-energetic nature of the explosion.

Original language	English (US)
Article number	50
Journal	Astrophysical Journal
Volume	761
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/761/1/50
State	Published - Dec 10 2012

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Troja, E., Sakamoto, T., Guidorzi, C., Norris, J. P., Panaitescu, A., Kobayashi, S., Omodei, N., Brown, J. C., Burrows, D. N., Evans, P. A., Gehrels, N., Marshall, F. E., Mawson, N., Melandri, A., Mundell, C. G., Oates, S. R., Pal'Shin, V., Preece, R. D., Racusin, J. L., ... Yamaoka, K. (2012). Broadband study of GRB 091127: A sub-energetic burst at higher redshift? Astrophysical Journal, 761(1), Article 50. https://doi.org/10.1088/0004-637X/761/1/50

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title = "Broadband study of GRB 091127: A sub-energetic burst at higher redshift?",

abstract = "GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z = 0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the context of the GRB/SN association. While the high luminosity of the prompt emission and standard afterglow behavior are typical of cosmological long GRBs, its low-energy release (E γ < 3 × 10 49 erg), soft spectrum, and unusual spectral lag connect this GRB to the class of sub-energetic bursts. We discuss the suppression of high-energy emission in this burst, and investigate whether this behavior could be connected with the sub-energetic nature of the explosion.",

author = "E. Troja and T. Sakamoto and C. Guidorzi and Norris, {J. P.} and A. Panaitescu and S. Kobayashi and N. Omodei and Brown, {J. C.} and Burrows, {D. N.} and Evans, {P. A.} and N. Gehrels and Marshall, {F. E.} and N. Mawson and A. Melandri and Mundell, {C. G.} and Oates, {S. R.} and V. Pal'Shin and Preece, {R. D.} and Racusin, {J. L.} and Steele, {I. A.} and Tanvir, {N. R.} and V. Vasileiou and C. Wilson-Hodge and K. Yamaoka",

year = "2012",

month = dec,

day = "10",

doi = "10.1088/0004-637X/761/1/50",

language = "English (US)",

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Troja, E, Sakamoto, T, Guidorzi, C, Norris, JP, Panaitescu, A, Kobayashi, S, Omodei, N, Brown, JC, Burrows, DN, Evans, PA, Gehrels, N, Marshall, FE, Mawson, N, Melandri, A, Mundell, CG, Oates, SR, Pal'Shin, V, Preece, RD, Racusin, JL, Steele, IA, Tanvir, NR, Vasileiou, V, Wilson-Hodge, C & Yamaoka, K 2012, 'Broadband study of GRB 091127: A sub-energetic burst at higher redshift?', Astrophysical Journal, vol. 761, no. 1, 50. https://doi.org/10.1088/0004-637X/761/1/50

TY - JOUR

T1 - Broadband study of GRB 091127

T2 - A sub-energetic burst at higher redshift?

AU - Troja, E.

AU - Sakamoto, T.

AU - Guidorzi, C.

AU - Norris, J. P.

AU - Panaitescu, A.

AU - Kobayashi, S.

AU - Omodei, N.

AU - Brown, J. C.

AU - Burrows, D. N.

AU - Evans, P. A.

AU - Gehrels, N.

AU - Marshall, F. E.

AU - Mawson, N.

AU - Melandri, A.

AU - Mundell, C. G.

AU - Oates, S. R.

AU - Pal'Shin, V.

AU - Preece, R. D.

AU - Racusin, J. L.

AU - Steele, I. A.

AU - Tanvir, N. R.

AU - Vasileiou, V.

AU - Wilson-Hodge, C.

AU - Yamaoka, K.

PY - 2012/12/10

Y1 - 2012/12/10

N2 - GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z = 0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the context of the GRB/SN association. While the high luminosity of the prompt emission and standard afterglow behavior are typical of cosmological long GRBs, its low-energy release (E γ < 3 × 10 49 erg), soft spectrum, and unusual spectral lag connect this GRB to the class of sub-energetic bursts. We discuss the suppression of high-energy emission in this burst, and investigate whether this behavior could be connected with the sub-energetic nature of the explosion.

AB - GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z = 0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the context of the GRB/SN association. While the high luminosity of the prompt emission and standard afterglow behavior are typical of cosmological long GRBs, its low-energy release (E γ < 3 × 10 49 erg), soft spectrum, and unusual spectral lag connect this GRB to the class of sub-energetic bursts. We discuss the suppression of high-energy emission in this burst, and investigate whether this behavior could be connected with the sub-energetic nature of the explosion.

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VL - 761

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 50

ER -

Broadband study of GRB 091127: A sub-energetic burst at higher redshift?

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