The bright optical afterglow of the long GRB 001007

J. M. Castro Cerón; A. J. Castro-Tirado; J. Gorosabel; J. Hjorth; J. U. Fynbo; B. L. Jensen; H. Pedersen; M. I. Andersen; M. López-Corredoira; O. Suárez; Y. Grosdidier; J. Casares; D. Pérez-Ramírez; B. Milvang-Jensen; G. Mallén-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. Castro Cerón, A. J. Castro-Tirado, J. Gorosabel, J. Hjorth, J. U. Fynbo, B. L. Jensen, H. Pedersen, M. I. Andersen, M. López-Corredoira, O. Suárez, Y. Grosdidier, J. Casares, D. Pérez-Ramírez, B. Milvang-Jensen, G. Mallén-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

Multiple Mirror Telescope Observatory

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

5 Scopus citations

Abstract

We present optical follow up observations of the long GRB 001007 between 6.14 hours and ∼468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index α = -2.03 ± 0.11, possibly indicating a break in the light curve at t - t₀ < 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 (US)
Pages (from-to)	445-451
Number of pages	7
Journal	Astronomy and astrophysics
Volume	393
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20021010
State	Published - Oct 2002

Keywords

Cosmology: observations
Gamma rays: bursts
Techniques: photometric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361:20021010

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Castro Cerón, J. M., Castro-Tirado, A. J., Gorosabel, J., Hjorth, J., Fynbo, J. U., Jensen, B. L., Pedersen, H., Andersen, M. I., López-Corredoira, M., Suárez, O., Grosdidier, Y., Casares, J., Pérez-Ramírez, D., Milvang-Jensen, B., Mallén-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

Castro Cerón, JM, Castro-Tirado, AJ, Gorosabel, J, Hjorth, J, Fynbo, JU, Jensen, BL, Pedersen, H, Andersen, MI, López-Corredoira, M, Suárez, O, Grosdidier, Y, Casares, J, Pérez-Ramírez, D, Milvang-Jensen, B, Mallén-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

@article{33fe5cab89674e46bd5298b3003af3c5,

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 ∼468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index α = -2.03 ± 0.11, possibly indicating a break in the light curve at t - t0 < 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 = "Cosmology: observations, Gamma rays: bursts, Techniques: photometric",

author = "{Castro Cer{\'o}n}, {J. M.} and Castro-Tirado, {A. J.} and J. Gorosabel and J. Hjorth and Fynbo, {J. U.} and Jensen, {B. L.} and H. Pedersen and Andersen, {M. I.} and M. L{\'o}pez-Corredoira and O. Su{\'a}rez and Y. Grosdidier and J. Casares and D. P{\'e}rez-Ram{\'i}rez and B. Milvang-Jensen and G. Mall{\'e}n-Ornelas and A. Fruchter and J. Greiner and E. Pian and Vreeswijk, {P. M.} and Barthelmy, {S. D.} and T. Cline and F. Frontera and L. Kaper and S. Klose and C. Kouveliotou and Hartmann, {D. H.} and K. Hurley and N. Masetti and E. Mazets and E. Palazzi and Park, {H. S.} and E. Rol and I. Salamanca and N. Tanvir and Trombka, {J. I.} and Wijers, {R. A.M.J.} and Williams, {G. G.} and {Van Den Heuvel}, E.",

year = "2002",

month = oct,

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

language = "English (US)",

volume = "393",

pages = "445--451",

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TY - JOUR

T1 - The bright optical afterglow of the long GRB 001007

AU - Castro Cerón, J. M.

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 - López-Corredoira, M.

AU - Suárez, O.

AU - Grosdidier, Y.

AU - Casares, J.

AU - Pérez-Ramírez, D.

AU - Milvang-Jensen, B.

AU - Mallén-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 - 2002/10

Y1 - 2002/10

N2 - We present optical follow up observations of the long GRB 001007 between 6.14 hours and ∼468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index α = -2.03 ± 0.11, possibly indicating a break in the light curve at t - t0 < 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 ∼468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index α = -2.03 ± 0.11, possibly indicating a break in the light curve at t - t0 < 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 - Cosmology: observations

KW - Gamma rays: bursts

KW - Techniques: photometric

UR - http://www.scopus.com/inward/record.url?scp=18644381142&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18644381142&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20021010

DO - 10.1051/0004-6361:20021010

M3 - Article

AN - SCOPUS:18644381142

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

Abstract

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