The bright optical afterglow of the long GRB 001007

J.M.C. Ceron; A.J. Castro-Tirado; J. Gorosabel; J. Hjorth; J.U. Fynbo; B.L. Jensen; H. Pedersen; M.I. Andersen; M. Lopez-Corredoira; O. Suarez; Y. Grosdidier; J. Casares; D.P. Perez-Ramirez; B. Milvang-Jensen; G. Mallen-Ornelas; A. Fruchter; J. Greiner; E. Pian; P.M. Vreeswijk; S.D. Barthelmy; T. Cline; F. Frontera; L. Kaper; S. Klose; C. Kouveliotou; D.H. Hartmann; K. Hurley; N. Masetti; E. Mazets; E. Palazzi; H.S. Park; E. Rol; I. Salamanca; N. Tanvir; J.I. Trombka; R.A.M.J. Wijers; G.G. Williams; E. van den Heuvel

doi:10.1051/0004-6361:20021010

The bright optical afterglow of the long GRB 001007

J.M.C. Ceron, A.J. Castro-Tirado, J. Gorosabel, J. Hjorth, J.U. Fynbo, B.L. Jensen, H. Pedersen, M.I. Andersen, M. Lopez-Corredoira, O. Suarez, Y. Grosdidier, J. Casares, D.P. Perez-Ramirez, B. Milvang-Jensen, G. Mallen-Ornelas, A. Fruchter, J. Greiner, E. Pian, P.M. Vreeswijk, S.D. BarthelmyT. Cline, F. Frontera, L. Kaper, S. Klose, C. Kouveliotou, D.H. Hartmann, K. Hurley, N. Masetti, E. Mazets, E. Palazzi, H.S. Park, E. Rol, I. Salamanca, N. Tanvir, J.I. Trombka, R.A.M.J. Wijers, G.G. Williams, E. van den Heuvel

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We present optical follow up observations of the long GRB 001007 between 6.14 hours and similar to468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index alpha = -2.03 +/- 0.11, possibly indicating a break in the light curve at t - t(0) <3.5 days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2σ) evidence for a break in the optical light curve. The spectral index β of the OA yields -1.24 +/- 0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2" (1.7σ) and 1.9" (2.7σ) from the afterglow position.

Original language	English
Journal	Astronomy and Astrophysics
Volume	393
Issue number	2
Pages (from-to)	445-451
ISSN	0004-6361
DOIs	https://doi.org/10.1051/0004-6361:20021010
Publication status	Published - 2002

Keywords

Gamma rays
Bursts techniques
Photometric cosmology
Observations

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Ceron, J. M. C., Castro-Tirado, A. J., Gorosabel, J., Hjorth, J., Fynbo, J. U., Jensen, B. L., Pedersen, H., Andersen, M. I., Lopez-Corredoira, M., Suarez, O., Grosdidier, Y., Casares, J., Perez-Ramirez, D. P., Milvang-Jensen, B., Mallen-Ornelas, G., Fruchter, A., Greiner, J., Pian, E., Vreeswijk, P. M., ... van den Heuvel, E. (2002). The bright optical afterglow of the long GRB 001007. Astronomy and Astrophysics, 393(2), 445-451. https://doi.org/10.1051/0004-6361:20021010

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title = "The bright optical afterglow of the long GRB 001007",

abstract = "We present optical follow up observations of the long GRB 001007 between 6.14 hours and similar to468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index alpha = -2.03 +/- 0.11, possibly indicating a break in the light curve at t - t(0) <3.5 days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2σ) evidence for a break in the optical light curve. The spectral index β of the OA yields -1.24 +/- 0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2{"} (1.7σ) and 1.9{"} (2.7σ) from the afterglow position.",

keywords = "Gamma rays, Bursts techniques, Photometric cosmology, Observations",

author = "J.M.C. Ceron and A.J. Castro-Tirado and J. Gorosabel and J. Hjorth and J.U. Fynbo and B.L. Jensen and H. Pedersen and M.I. Andersen and M. Lopez-Corredoira and O. Suarez and Y. Grosdidier and J. Casares and D.P. Perez-Ramirez and B. Milvang-Jensen and G. Mallen-Ornelas and A. Fruchter and J. Greiner and E. Pian and P.M. Vreeswijk and S.D. Barthelmy and T. Cline and F. Frontera and L. Kaper and S. Klose and C. Kouveliotou and D.H. Hartmann and K. Hurley and N. Masetti and E. Mazets and E. Palazzi and H.S. Park and E. Rol and I. Salamanca and N. Tanvir and J.I. Trombka and R.A.M.J. Wijers and G.G. Williams and {van den Heuvel}, E.",

year = "2002",

doi = "10.1051/0004-6361:20021010",

language = "English",

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pages = "445--451",

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Ceron, JMC, Castro-Tirado, AJ, Gorosabel, J, Hjorth, J, Fynbo, JU, Jensen, BL, Pedersen, H, Andersen, MI, Lopez-Corredoira, M, Suarez, O, Grosdidier, Y, Casares, J, Perez-Ramirez, DP, Milvang-Jensen, B, Mallen-Ornelas, G, Fruchter, A, Greiner, J, Pian, E, Vreeswijk, PM, Barthelmy, SD, Cline, T, Frontera, F, Kaper, L, Klose, S, Kouveliotou, C, Hartmann, DH, Hurley, K, Masetti, N, Mazets, E, Palazzi, E, Park, HS, Rol, E, Salamanca, I, Tanvir, N, Trombka, JI, Wijers, RAMJ, Williams, GG & van den Heuvel, E 2002, 'The bright optical afterglow of the long GRB 001007', Astronomy and Astrophysics, vol. 393, no. 2, pp. 445-451. https://doi.org/10.1051/0004-6361:20021010

TY - JOUR

T1 - The bright optical afterglow of the long GRB 001007

AU - Ceron, J.M.C.

AU - Castro-Tirado, A.J.

AU - Gorosabel, J.

AU - Hjorth, J.

AU - Fynbo, J.U.

AU - Jensen, B.L.

AU - Pedersen, H.

AU - Andersen, M.I.

AU - Lopez-Corredoira, M.

AU - Suarez, O.

AU - Grosdidier, Y.

AU - Casares, J.

AU - Perez-Ramirez, D.P.

AU - Milvang-Jensen, B.

AU - Mallen-Ornelas, G.

AU - Fruchter, A.

AU - Greiner, J.

AU - Pian, E.

AU - Vreeswijk, P.M.

AU - Barthelmy, S.D.

AU - Cline, T.

AU - Frontera, F.

AU - Kaper, L.

AU - Klose, S.

AU - Kouveliotou, C.

AU - Hartmann, D.H.

AU - Hurley, K.

AU - Masetti, N.

AU - Mazets, E.

AU - Palazzi, E.

AU - Park, H.S.

AU - Rol, E.

AU - Salamanca, I.

AU - Tanvir, N.

AU - Trombka, J.I.

AU - Wijers, R.A.M.J.

AU - Williams, G.G.

AU - van den Heuvel, E.

PY - 2002

Y1 - 2002

N2 - We present optical follow up observations of the long GRB 001007 between 6.14 hours and similar to468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index alpha = -2.03 +/- 0.11, possibly indicating a break in the light curve at t - t(0) <3.5 days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2σ) evidence for a break in the optical light curve. The spectral index β of the OA yields -1.24 +/- 0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2" (1.7σ) and 1.9" (2.7σ) from the afterglow position.

AB - We present optical follow up observations of the long GRB 001007 between 6.14 hours and similar to468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index alpha = -2.03 +/- 0.11, possibly indicating a break in the light curve at t - t(0) <3.5 days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2σ) evidence for a break in the optical light curve. The spectral index β of the OA yields -1.24 +/- 0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2" (1.7σ) and 1.9" (2.7σ) from the afterglow position.

KW - Gamma rays

KW - Bursts techniques

KW - Photometric cosmology

KW - Observations

U2 - 10.1051/0004-6361:20021010

DO - 10.1051/0004-6361:20021010

M3 - Journal article

SN - 0004-6361

VL - 393

SP - 445

EP - 451

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

The bright optical afterglow of the long GRB 001007

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Keywords

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