The anomalous early afterglow of GRB 050801

E. S. Rykoff; V. Mangano; S. A. Yost; R. Sari; F. Aharonian; C. W. Akerlof; M. C.B. Ashley; S. D. Barthelmy; D. N. Burrows; N. Gehrels; E. Göǧüş; T. Güver; D. Horns; Ü Kiziloǧlu; H. A. Krimm; T. A. Mckay; M. Özel; A. Phillips; R. M. Quimby; G. Rowell; W. Rujopakarn; B. E. Schaefer; D. A. Smith; H. F. Swan; W. T. Vestrand; J. C. Wheeler; J. Wren; F. Yuan

doi:10.1086/501007

The anomalous early afterglow of GRB 050801

E. S. Rykoff^*, V. Mangano, S. A. Yost, R. Sari, F. Aharonian, C. W. Akerlof, M. C.B. Ashley, S. D. Barthelmy, D. N. Burrows, N. Gehrels, E. Göǧüş, T. Güver, D. Horns, Ü Kiziloǧlu, H. A. Krimm, T. A. Mckay, M. Özel, A. Phillips, R. M. Quimby, G. RowellW. Rujopakarn, B. E. Schaefer, D. A. Smith, H. F. Swan, W. T. Vestrand, J. C. Wheeler, J. Wren, F. Yuan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first ∼250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.

Original language	English
Pages (from-to)	L5-L8
Journal	Astrophysical Journal
Volume	638
Issue number	1 II
DOIs	https://doi.org/10.1086/501007
State	Published - 10 Feb 2006
Externally published	Yes

Keywords

Gamma rays: bursts

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10.1086/501007

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Rykoff, E. S., Mangano, V., Yost, S. A., Sari, R., Aharonian, F., Akerlof, C. W., Ashley, M. C. B., Barthelmy, S. D., Burrows, D. N., Gehrels, N., Göǧüş, E., Güver, T., Horns, D., Kiziloǧlu, Ü., Krimm, H. A., Mckay, T. A., Özel, M., Phillips, A., Quimby, R. M., ... Yuan, F. (2006). The anomalous early afterglow of GRB 050801. Astrophysical Journal, 638(1 II), L5-L8. https://doi.org/10.1086/501007

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title = "The anomalous early afterglow of GRB 050801",

abstract = "The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first ∼250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.",

keywords = "Gamma rays: bursts",

author = "Rykoff, {E. S.} and V. Mangano and Yost, {S. A.} and R. Sari and F. Aharonian and Akerlof, {C. W.} and Ashley, {M. C.B.} and Barthelmy, {S. D.} and Burrows, {D. N.} and N. Gehrels and E. G{\"o}ǧ{\"u}{\c s} and T. G{\"u}ver and D. Horns and {\"U} Kiziloǧlu and Krimm, {H. A.} and Mckay, {T. A.} and M. {\"O}zel and A. Phillips and Quimby, {R. M.} and G. Rowell and W. Rujopakarn and Schaefer, {B. E.} and Smith, {D. A.} and Swan, {H. F.} and Vestrand, {W. T.} and Wheeler, {J. C.} and J. Wren and F. Yuan",

year = "2006",

month = feb,

day = "10",

doi = "10.1086/501007",

language = "אנגלית",

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Rykoff, ES, Mangano, V, Yost, SA, Sari, R, Aharonian, F, Akerlof, CW, Ashley, MCB, Barthelmy, SD, Burrows, DN, Gehrels, N, Göǧüş, E, Güver, T, Horns, D, Kiziloǧlu, Ü, Krimm, HA, Mckay, TA, Özel, M, Phillips, A, Quimby, RM, Rowell, G, Rujopakarn, W, Schaefer, BE, Smith, DA, Swan, HF, Vestrand, WT, Wheeler, JC, Wren, J & Yuan, F 2006, 'The anomalous early afterglow of GRB 050801', Astrophysical Journal, vol. 638, no. 1 II, pp. L5-L8. https://doi.org/10.1086/501007

TY - JOUR

T1 - The anomalous early afterglow of GRB 050801

AU - Rykoff, E. S.

AU - Mangano, V.

AU - Yost, S. A.

AU - Sari, R.

AU - Aharonian, F.

AU - Akerlof, C. W.

AU - Ashley, M. C.B.

AU - Barthelmy, S. D.

AU - Burrows, D. N.

AU - Gehrels, N.

AU - Göǧüş, E.

AU - Güver, T.

AU - Horns, D.

AU - Kiziloǧlu, Ü

AU - Krimm, H. A.

AU - Mckay, T. A.

AU - Özel, M.

AU - Phillips, A.

AU - Quimby, R. M.

AU - Rowell, G.

AU - Rujopakarn, W.

AU - Schaefer, B. E.

AU - Smith, D. A.

AU - Swan, H. F.

AU - Vestrand, W. T.

AU - Wheeler, J. C.

AU - Wren, J.

AU - Yuan, F.

PY - 2006/2/10

Y1 - 2006/2/10

N2 - The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first ∼250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.

AB - The ROTSE-IIIc telescope at the HESS site, Namibia, obtained the earliest detection of optical emission from a gamma-ray burst (GRB), beginning only 21.8 s from the onset of Swift GRB 050801. The optical light curve does not fade or brighten significantly over the first ∼250 s, after which there is an achromatic break and the light curve declines in typical power-law fashion. The Swift XRT also obtained early observations starting at 69 s after the burst onset. The X-ray light curve shows the same features as the optical light curve. These correlated variations in the early optical and X-ray emission imply a common origin in space and time. This behavior is difficult to reconcile with the standard models of early afterglow emission.

KW - Gamma rays: bursts

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U2 - 10.1086/501007

DO - 10.1086/501007

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:33644525882

SN - 0004-637X

VL - 638

SP - L5-L8

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

The anomalous early afterglow of GRB 050801

Abstract

Keywords

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