Swift observations of GRB 050712

Massimiliano De Pasquale, Dirk Grupe, T. S. Poole, A. A. Breeveld, S. Zane, S. R. Rosen, M. J. Page, K. O. Mason, D. N. Burrows, H. A. Krimm, N. Gehrels, J. A. Nousek, P. W.A. Roming, S. Kobayashi, B. Zhang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We present the results of X-ray and optical observations of GRB 050712 performed by Swift. The X-ray light curve of this burst exhibits episodes of flares in the first 1000 s, the same epoch at which the UVOT detected an optical counterpart. A shallow X-ray decay, with a decay slope of α = -0.73, followed and lasted ∼70 ks. This behaviour can be explained in terms of activity of the gamma-ray burst 'inner engine', with the possibility that the last flare is caused by the interaction of the ejecta with the surrounding medium. We also find interesting spectral parameters for the X-ray emission. In particular, data suggest the presence of an intrinsic absorption in the first 1000 s, which can be explained if circumburst medium clouds lie along the line of sight.

Original languageEnglish (US)
Pages (from-to)1859-1866
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume370
Issue number4
DOIs
StatePublished - Aug 1 2006

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flares
x rays
decay
ejecta
gamma ray bursts
line of sight
light curve
engines
bursts
engine
time measurement
slopes
interactions
parameter

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

De Pasquale, M., Grupe, D., Poole, T. S., Breeveld, A. A., Zane, S., Rosen, S. R., ... Zhang, B. (2006). Swift observations of GRB 050712. Monthly Notices of the Royal Astronomical Society, 370(4), 1859-1866. https://doi.org/10.1111/j.1365-2966.2006.10609.x
De Pasquale, Massimiliano ; Grupe, Dirk ; Poole, T. S. ; Breeveld, A. A. ; Zane, S. ; Rosen, S. R. ; Page, M. J. ; Mason, K. O. ; Burrows, D. N. ; Krimm, H. A. ; Gehrels, N. ; Nousek, J. A. ; Roming, P. W.A. ; Kobayashi, S. ; Zhang, B. / Swift observations of GRB 050712. In: Monthly Notices of the Royal Astronomical Society. 2006 ; Vol. 370, No. 4. pp. 1859-1866.
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De Pasquale, M, Grupe, D, Poole, TS, Breeveld, AA, Zane, S, Rosen, SR, Page, MJ, Mason, KO, Burrows, DN, Krimm, HA, Gehrels, N, Nousek, JA, Roming, PWA, Kobayashi, S & Zhang, B 2006, 'Swift observations of GRB 050712', Monthly Notices of the Royal Astronomical Society, vol. 370, no. 4, pp. 1859-1866. https://doi.org/10.1111/j.1365-2966.2006.10609.x

Swift observations of GRB 050712. / De Pasquale, Massimiliano; Grupe, Dirk; Poole, T. S.; Breeveld, A. A.; Zane, S.; Rosen, S. R.; Page, M. J.; Mason, K. O.; Burrows, D. N.; Krimm, H. A.; Gehrels, N.; Nousek, J. A.; Roming, P. W.A.; Kobayashi, S.; Zhang, B.

In: Monthly Notices of the Royal Astronomical Society, Vol. 370, No. 4, 01.08.2006, p. 1859-1866.

Research output: Contribution to journalArticle

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AU - De Pasquale, Massimiliano

AU - Grupe, Dirk

AU - Poole, T. S.

AU - Breeveld, A. A.

AU - Zane, S.

AU - Rosen, S. R.

AU - Page, M. J.

AU - Mason, K. O.

AU - Burrows, D. N.

AU - Krimm, H. A.

AU - Gehrels, N.

AU - Nousek, J. A.

AU - Roming, P. W.A.

AU - Kobayashi, S.

AU - Zhang, B.

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AB - We present the results of X-ray and optical observations of GRB 050712 performed by Swift. The X-ray light curve of this burst exhibits episodes of flares in the first 1000 s, the same epoch at which the UVOT detected an optical counterpart. A shallow X-ray decay, with a decay slope of α = -0.73, followed and lasted ∼70 ks. This behaviour can be explained in terms of activity of the gamma-ray burst 'inner engine', with the possibility that the last flare is caused by the interaction of the ejecta with the surrounding medium. We also find interesting spectral parameters for the X-ray emission. In particular, data suggest the presence of an intrinsic absorption in the first 1000 s, which can be explained if circumburst medium clouds lie along the line of sight.

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De Pasquale M, Grupe D, Poole TS, Breeveld AA, Zane S, Rosen SR et al. Swift observations of GRB 050712. Monthly Notices of the Royal Astronomical Society. 2006 Aug 1;370(4):1859-1866. https://doi.org/10.1111/j.1365-2966.2006.10609.x