Evidence for a Canonical Gamma‐Ray Burst Afterglow Light Curve in the<i>Swift</i>XRT Data

Nousek, J. A.; Kouveliotou, C.; Grupe, D.; Page, K. L.; Granot, Jonathan; Ramírez-Ruiz, E.; Patel, S.; Burrows, D. N.; Mangano, V.; Barthelmy, S. D.; Beardmore, A. P.; Campana, S.; Capalbi, M.; Chincarini, G.; Cusumano, G.; Falcone, A.; Gehrels, N.; Giommi, P.; Goad, M. R.; Godet, O.; Hurkett, C.; Kennea, J. A.; Moretti, A.; O’Brien, P. T.; Osborne, J. P.; Romano, P.; Tagliaferri, G.; Wells, A.

doi:10.1086/500724

Cited by 815 publications

(949 citation statements)

References 65 publications

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“…Both of these values lie orders of magnitude below the expectations for most GRBs, which have characteristic values of Eiso ∼ 10 52−54 ergs (Kocevski & Butler 2008;Cenko et al 2009) and LX ∼ 10 45−47 ergs s −1 (Nousek et al 2006). These properties mark GRB 080517 as a member of the observationally rare population of low luminosity GRBs (LLGRBs).…”

Section: Burst Propertiesmentioning

confidence: 82%

GRB 080517: a local, low-luminosity gamma-ray burst in a dusty galaxy at z = 0.09

Stanway¹,

Levan²,

Tanvir³

et al. 2014

Monthly Notices of the Royal Astronomical Society

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We present an analysis of the photometry and spectroscopy of the host galaxy of Swift-detected GRB 080517. From our optical spectroscopy, we identify a redshift of z = 0.089 ± 0.003, based on strong emission lines, making this a rare example of a very local, low luminosity, long gamma ray burst. The galaxy is detected in the radio with a flux density of S 4.5 GHz =0.22±0.04 mJy -one of relatively few known GRB hosts with a securely measured radio flux. Both optical emission lines and a strong detection at 22µm suggest that the host galaxy is forming stars rapidly, with an inferred star formation rate ∼ 16 M ⊙ yr −1 and a high dust obscuration (E(B − V ) > 1, based on sight-lines to the nebular emission regions). The presence of a companion galaxy within a projected distance of 25 kpc, and almost identical in redshift, suggests that star formation may have been triggered by galaxy-galaxy interaction. However, fitting of the remarkably flat spectral energy distribution from the ultraviolet through to the infrared suggests that an older, 500 Myr post-starburst stellar population is present along with the ongoing star formation. We conclude that the host galaxy of GRB 080517 is a valuable addition to the still very small sample of well-studied local gamma-ray burst hosts.

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Section: Burst Propertiesmentioning

confidence: 82%

GRB 080517: a local, low-luminosity gamma-ray burst in a dusty galaxy at z = 0.09

Stanway¹,

Levan²,

Tanvir³

et al. 2014

Monthly Notices of the Royal Astronomical Society

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“…However, there are increasing evidences that the shock energy may increase with time during some period. One good example is the discovery of the "shallow decay phase" in the early X-ray light curves of many GRBs, which is usually attributed to the energy injection (Zhang et al 2006;Nousek et al 2006). Now we consider the case that there is significant continuous energy injection into the fireball, so the fireball decelerates less rapidly and the afterglow emission will show a shallow decline.…”

Section: The Ssc Emission With Energy Injection and Evolving Shock Pamentioning

confidence: 99%

“…Now we consider the case that there is significant continuous energy injection into the fireball, so the fireball decelerates less rapidly and the afterglow emission will show a shallow decline. The dynamical evolution and the synchrotron radiation signature for energy injection have been discussed by many authors (Rees & Mészáros 1998;Dai & Lu 1998;Cohen & Piran 1999;Zhang & Mészáros 2001a;Zhang et al 2006;Nousek et al 2006;Fan & Xu 2006). …”

Section: The Ssc Emission With Energy Injection and Evolving Shock Pamentioning

confidence: 99%

“…The successful launch of the Swift satellite did open a new window to reveal what happens in the early GRB afterglow phase. As summarized in Zhang et al (2006) and Nousek et al (2006), in a canonical Swift GRB X-ray afterglow lightcurve some interesting features are emerging, including the very early sharp decline (i.e., phase-I), a shallow decline of the X-ray afterglow (i.e., phase-II), and the energetic X-ray flares (i.e., phase-V). The interpretation and the implication of these features have been discussed in great detail (see Mészáros 2006;Piran & Fan 2007;Zhang 2007 for recent reviews).…”

Section: Introductionmentioning

confidence: 99%

“…The interpretation and the implication of these features have been discussed in great detail (see Mészáros 2006;Piran & Fan 2007;Zhang 2007 for recent reviews). For Phase-II, which interests us here, a widely considered explanation is a significant energy injection dE inj /dt ∝ t −q (see Zhang et al 2006 andNousek et al 2006 and the references therein). However, the energy injection process, if there is, seems to be not all the story.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Synchrotron-self-Compton Radiation Accompanying Shallow Decaying X-Ray Afterglow: the Case of GRB 940217

Wei¹,

Fan²

2007

Chin. J. Astron. Astrophys.

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High energy emission (> tens MeV) of Gamma-Ray Bursts (GRBs) provides an important clue to understand the physical processes involved in GRBs, which may be correlated with the GRB early afterglow. A shallow decline phase has been well detected in about half Swift Gamma-ray Burst X-ray afterglows. The widely considered interpretation involves a significant energy injection and possibly time-evolving shock parameter(s). This work we calculate the synchrotronself-Compton (SSC) radiation of such an external forward shock and show that it could explain the well-known long term high energy (i.e., tens MeV to GeV) afterglow of GRB 940217. We propose that the cooperation of Swift and GLAST will help to reveal the nature of GRBs.

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Gamma-Ray Bursts as Sources of Strong Magnetic Fields

Granot¹,

Piran²,

Bromberg³

et al. 2016

The Strongest Magnetic Fields in the Universe

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Evidence for a Canonical Gamma‐Ray Burst Afterglow Light Curve in theSwiftXRT Data

Cited by 815 publications

References 65 publications

GRB 080517: a local, low-luminosity gamma-ray burst in a dusty galaxy at z = 0.09

GRB 080517: a local, low-luminosity gamma-ray burst in a dusty galaxy at z = 0.09

The Synchrotron-self-Compton Radiation Accompanying Shallow Decaying X-Ray Afterglow: the Case of GRB 940217

Gamma-Ray Bursts as Sources of Strong Magnetic Fields

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