The complex light curve of the afterglow of GRB071010A

S. Covino; P. D'Avanzo; A. Klotz; D. A. Perley; L. Amati; S. Campana; G. Chincarini; A. Cucchiara; V. D'Elia; D. Guetta; C. Guidorzi; D. A. Kann; A. Küpcü Yoldas; K. Misra; G. Olofsson; G. Tagliaferri; L. A. Antonelli; E. Berger; J. S. Bloom; M. Böer; C. Clemens; F. D'Alessio; M. Della Valle; S. di Serego Alighieri; A. V. Filippenko; R. J. Foley; D. B. Fox; D. Fugazza; J. Fynbo; B. Gendre; P. Goldoni; J. Greiner; D. Kocevksi; E. Maiorano; N. Masetti; E. Meurs; M. Modjaz; E. Molinari; A. Moretti; E. Palazzi; S. B. Pandey; S. Piranomonte; D. Poznanski; N. Primak; P. Romano; E. Rossi; R. Roy; J. M. Silverman; L. Stella; G. Stratta; V. Testa; S. D. Vergani; F. Vitali; F. Zerbi

doi:10.1111/j.1365-2966.2008.13393.x

The complex light curve of the afterglow of GRB071010A

S. Covino, P. D'Avanzo, A. Klotz, D. A. Perley, L. Amati, S. Campana, G. Chincarini, A. Cucchiara, V. D'Elia, D. Guetta, C. Guidorzi, D. A. Kann, A. Küpcü Yoldas, K. Misra, G. Olofsson, G. Tagliaferri, L. A. Antonelli, E. Berger, J. S. Bloom, M. BöerC. Clemens, F. D'Alessio, M. Della Valle, S. di Serego Alighieri, A. V. Filippenko, R. J. Foley, D. B. Fox, D. Fugazza, J. Fynbo, B. Gendre, P. Goldoni, J. Greiner, D. Kocevksi, E. Maiorano, N. Masetti, E. Meurs, M. Modjaz, E. Molinari, A. Moretti, E. Palazzi, S. B. Pandey, S. Piranomonte, D. Poznanski, N. Primak, P. Romano, E. Rossi, R. Roy, J. M. Silverman, L. Stella, G. Stratta, V. Testa, S. D. Vergani, F. Vitali, F. Zerbi

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

Abstract

We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a month in the optical/near-infrared (NIR) with various telescopes starting from about 2 min after the high-energy event. Swift XRT observations started only later at about 0.4 d. The light-curve evolution allows us to single out an initial rising phasewith a maximum at about 7min, possibly the afterglow onset in the context of the standard fireball model, which is then followed by a smooth decay interrupted by a sharp rebrightening at about 0.6 d. The rebrightening was visible in both the optical/NIR and X-rays and can be interpreted as an episode of discrete energy injection, although various alternatives are possible. A steepening of the afterglow light curve is recorded at about 1 d. The entire evolution of the optical/NIR afterglow is consistent with being achromatic. This could be one of the few identified GRB afterglows with an achromatic break in the X-ray through the optical/NIR bands. Polarimetry was also obtained at about 1 d, just after the rebrightening and almost coincident with the steepening. This provided a fairly tight upper limit of 0.9 per cent for the polarized-flux fraction.

Original language	English (US)
Pages (from-to)	347-356
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	388
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2966.2008.13393.x
State	Published - 2008

Keywords

Gamma-rays: bursts
X-rays: individual: GRB071010A
methods: observational

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1111/j.1365-2966.2008.13393.x

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Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., Chincarini, G., Cucchiara, A., D'Elia, V., Guetta, D., Guidorzi, C., Kann, D. A., Küpcü Yoldas, A., Misra, K., Olofsson, G., Tagliaferri, G., Antonelli, L. A., Berger, E., Bloom, J. S., ... Zerbi, F. (2008). The complex light curve of the afterglow of GRB071010A. Monthly Notices of the Royal Astronomical Society, 388(1), 347-356. https://doi.org/10.1111/j.1365-2966.2008.13393.x

Covino, S, D'Avanzo, P, Klotz, A, Perley, DA, Amati, L, Campana, S, Chincarini, G, Cucchiara, A, D'Elia, V, Guetta, D, Guidorzi, C, Kann, DA, Küpcü Yoldas, A, Misra, K, Olofsson, G, Tagliaferri, G, Antonelli, LA, Berger, E, Bloom, JS, Böer, M, Clemens, C, D'Alessio, F, Della Valle, M, di Serego Alighieri, S, Filippenko, AV, Foley, RJ, Fox, DB, Fugazza, D, Fynbo, J, Gendre, B, Goldoni, P, Greiner, J, Kocevksi, D, Maiorano, E, Masetti, N, Meurs, E, Modjaz, M, Molinari, E, Moretti, A, Palazzi, E, Pandey, SB, Piranomonte, S, Poznanski, D, Primak, N, Romano, P, Rossi, E, Roy, R, Silverman, JM, Stella, L, Stratta, G, Testa, V, Vergani, SD, Vitali, F & Zerbi, F 2008, 'The complex light curve of the afterglow of GRB071010A', Monthly Notices of the Royal Astronomical Society, vol. 388, no. 1, pp. 347-356. https://doi.org/10.1111/j.1365-2966.2008.13393.x

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title = "The complex light curve of the afterglow of GRB071010A",

abstract = "We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a month in the optical/near-infrared (NIR) with various telescopes starting from about 2 min after the high-energy event. Swift XRT observations started only later at about 0.4 d. The light-curve evolution allows us to single out an initial rising phasewith a maximum at about 7min, possibly the afterglow onset in the context of the standard fireball model, which is then followed by a smooth decay interrupted by a sharp rebrightening at about 0.6 d. The rebrightening was visible in both the optical/NIR and X-rays and can be interpreted as an episode of discrete energy injection, although various alternatives are possible. A steepening of the afterglow light curve is recorded at about 1 d. The entire evolution of the optical/NIR afterglow is consistent with being achromatic. This could be one of the few identified GRB afterglows with an achromatic break in the X-ray through the optical/NIR bands. Polarimetry was also obtained at about 1 d, just after the rebrightening and almost coincident with the steepening. This provided a fairly tight upper limit of 0.9 per cent for the polarized-flux fraction.",

keywords = "Gamma-rays: bursts, X-rays: individual: GRB071010A, methods: observational",

author = "S. Covino and P. D'Avanzo and A. Klotz and Perley, {D. A.} and L. Amati and S. Campana and G. Chincarini and A. Cucchiara and V. D'Elia and D. Guetta and C. Guidorzi and Kann, {D. A.} and {K{\"u}pc{\"u} Yoldas}, A. and K. Misra and G. Olofsson and G. Tagliaferri and Antonelli, {L. A.} and E. Berger and Bloom, {J. S.} and M. B{\"o}er and C. Clemens and F. D'Alessio and {Della Valle}, M. and {di Serego Alighieri}, S. and Filippenko, {A. V.} and Foley, {R. J.} and Fox, {D. B.} and D. Fugazza and J. Fynbo and B. Gendre and P. Goldoni and J. Greiner and D. Kocevksi and E. Maiorano and N. Masetti and E. Meurs and M. Modjaz and E. Molinari and A. Moretti and E. Palazzi and Pandey, {S. B.} and S. Piranomonte and D. Poznanski and N. Primak and P. Romano and E. Rossi and R. Roy and Silverman, {J. M.} and L. Stella and G. Stratta and V. Testa and Vergani, {S. D.} and F. Vitali and F. Zerbi",

year = "2008",

doi = "10.1111/j.1365-2966.2008.13393.x",

language = "English (US)",

volume = "388",

pages = "347--356",

journal = "Monthly Notices of the Royal Astronomical Society",

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T1 - The complex light curve of the afterglow of GRB071010A

AU - Covino, S.

AU - D'Avanzo, P.

AU - Klotz, A.

AU - Perley, D. A.

AU - Amati, L.

AU - Campana, S.

AU - Chincarini, G.

AU - Cucchiara, A.

AU - D'Elia, V.

AU - Guetta, D.

AU - Guidorzi, C.

AU - Kann, D. A.

AU - Küpcü Yoldas, A.

AU - Misra, K.

AU - Olofsson, G.

AU - Tagliaferri, G.

AU - Antonelli, L. A.

AU - Berger, E.

AU - Bloom, J. S.

AU - Böer, M.

AU - Clemens, C.

AU - D'Alessio, F.

AU - Della Valle, M.

AU - di Serego Alighieri, S.

AU - Filippenko, A. V.

AU - Foley, R. J.

AU - Fox, D. B.

AU - Fugazza, D.

AU - Fynbo, J.

AU - Gendre, B.

AU - Goldoni, P.

AU - Greiner, J.

AU - Kocevksi, D.

AU - Maiorano, E.

AU - Masetti, N.

AU - Meurs, E.

AU - Modjaz, M.

AU - Molinari, E.

AU - Moretti, A.

AU - Palazzi, E.

AU - Pandey, S. B.

AU - Piranomonte, S.

AU - Poznanski, D.

AU - Primak, N.

AU - Romano, P.

AU - Rossi, E.

AU - Roy, R.

AU - Silverman, J. M.

AU - Stella, L.

AU - Stratta, G.

AU - Testa, V.

AU - Vergani, S. D.

AU - Vitali, F.

AU - Zerbi, F.

PY - 2008

Y1 - 2008

N2 - We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a month in the optical/near-infrared (NIR) with various telescopes starting from about 2 min after the high-energy event. Swift XRT observations started only later at about 0.4 d. The light-curve evolution allows us to single out an initial rising phasewith a maximum at about 7min, possibly the afterglow onset in the context of the standard fireball model, which is then followed by a smooth decay interrupted by a sharp rebrightening at about 0.6 d. The rebrightening was visible in both the optical/NIR and X-rays and can be interpreted as an episode of discrete energy injection, although various alternatives are possible. A steepening of the afterglow light curve is recorded at about 1 d. The entire evolution of the optical/NIR afterglow is consistent with being achromatic. This could be one of the few identified GRB afterglows with an achromatic break in the X-ray through the optical/NIR bands. Polarimetry was also obtained at about 1 d, just after the rebrightening and almost coincident with the steepening. This provided a fairly tight upper limit of 0.9 per cent for the polarized-flux fraction.

AB - We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a month in the optical/near-infrared (NIR) with various telescopes starting from about 2 min after the high-energy event. Swift XRT observations started only later at about 0.4 d. The light-curve evolution allows us to single out an initial rising phasewith a maximum at about 7min, possibly the afterglow onset in the context of the standard fireball model, which is then followed by a smooth decay interrupted by a sharp rebrightening at about 0.6 d. The rebrightening was visible in both the optical/NIR and X-rays and can be interpreted as an episode of discrete energy injection, although various alternatives are possible. A steepening of the afterglow light curve is recorded at about 1 d. The entire evolution of the optical/NIR afterglow is consistent with being achromatic. This could be one of the few identified GRB afterglows with an achromatic break in the X-ray through the optical/NIR bands. Polarimetry was also obtained at about 1 d, just after the rebrightening and almost coincident with the steepening. This provided a fairly tight upper limit of 0.9 per cent for the polarized-flux fraction.

KW - Gamma-rays: bursts

KW - X-rays: individual: GRB071010A

KW - methods: observational

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The complex light curve of the afterglow of GRB071010A

Abstract

Keywords

ASJC Scopus subject areas

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