Swift observations of GRB 050603

Dirk Grupe, Peter J. Brown, Alon Retter, David Nelson Burrows, John Andrew Nousek, Peter Istvan Meszaros, Bing Zhang, Jay Cummings

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report the results of Swiftobservations of the Gamma Ray Burst GRB 050603. With a V magnitude V=18.2 10 hours after the burst, the optical afterglow was the brightest so far detected by Swift and one of the brightest afterglows ever seen at late times. The Burst Alert Telescope (BAT) trigger light curves showed three fast-rise-exponential-decay spikes with T 90=12±2s and a fluence of 7.6 × 10-6 ergs cm-2 in the 15-150 keV band. The Swift spacecraft started the observations of the afterglow with the narrow-field instruments about 10 hours after the detection of the burst. The burst was bright enough to be detected by the Swift UV/Optical telescope (UVOT) for almost 3 days and by the X-ray Telescope (XRT) for a week after the burst. The X-ray light curve showed a rapidly fading afterglow with a decay index α=1.76-0.07 +0.15 This is one of the steepest late time slopes seen by Swift so far. The X-ray energy spectral index was βX=0.71±0.10 with the absorption parameter in agreement with the Galactic value. The spectral analysis did not show an obvious change in the X-ray spectral slope over time. The optical UVOT light curve decayed with a slope of 1.97. The steepness and the similarity of the optical and X-ray decay rates suggest that the afterglow was observed after the jet break. Its redshift z=2.821 was measured by Berger & Becker (2005).

Original languageEnglish (US)
Title of host publicationGAMMA-RAY BURSTS IN THE SWIFT ERA
Subtitle of host publicationSixteenth Maryland Astrophysics Conference
Pages432-435
Number of pages4
DOIs
StatePublished - May 19 2006
EventGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C., United States
Duration: Nov 29 2005Dec 2 2005

Publication series

NameAIP Conference Proceedings
Volume836
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference
CountryUnited States
CityWashington, D.C.
Period11/29/0512/2/05

Fingerprint

afterglows
bursts
X-radiation
telescopes
slopes
light curve
deterioration
x rays
decay
fading
gamma ray bursts
spikes
erg
spectral analysis
decay rates
gamma radiation
spectrum analysis
fluence
spacecraft
actuators

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Grupe, D., Brown, P. J., Retter, A., Burrows, D. N., Nousek, J. A., Meszaros, P. I., ... Cummings, J. (2006). Swift observations of GRB 050603. In GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference (pp. 432-435). (AIP Conference Proceedings; Vol. 836). https://doi.org/10.1063/1.2207933
Grupe, Dirk ; Brown, Peter J. ; Retter, Alon ; Burrows, David Nelson ; Nousek, John Andrew ; Meszaros, Peter Istvan ; Zhang, Bing ; Cummings, Jay. / Swift observations of GRB 050603. GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. 2006. pp. 432-435 (AIP Conference Proceedings).
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Grupe, D, Brown, PJ, Retter, A, Burrows, DN, Nousek, JA, Meszaros, PI, Zhang, B & Cummings, J 2006, Swift observations of GRB 050603. in GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. AIP Conference Proceedings, vol. 836, pp. 432-435, GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference, Washington, D.C., United States, 11/29/05. https://doi.org/10.1063/1.2207933

Swift observations of GRB 050603. / Grupe, Dirk; Brown, Peter J.; Retter, Alon; Burrows, David Nelson; Nousek, John Andrew; Meszaros, Peter Istvan; Zhang, Bing; Cummings, Jay.

GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. 2006. p. 432-435 (AIP Conference Proceedings; Vol. 836).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - We report the results of Swiftobservations of the Gamma Ray Burst GRB 050603. With a V magnitude V=18.2 10 hours after the burst, the optical afterglow was the brightest so far detected by Swift and one of the brightest afterglows ever seen at late times. The Burst Alert Telescope (BAT) trigger light curves showed three fast-rise-exponential-decay spikes with T 90=12±2s and a fluence of 7.6 × 10-6 ergs cm-2 in the 15-150 keV band. The Swift spacecraft started the observations of the afterglow with the narrow-field instruments about 10 hours after the detection of the burst. The burst was bright enough to be detected by the Swift UV/Optical telescope (UVOT) for almost 3 days and by the X-ray Telescope (XRT) for a week after the burst. The X-ray light curve showed a rapidly fading afterglow with a decay index α=1.76-0.07 +0.15 This is one of the steepest late time slopes seen by Swift so far. The X-ray energy spectral index was βX=0.71±0.10 with the absorption parameter in agreement with the Galactic value. The spectral analysis did not show an obvious change in the X-ray spectral slope over time. The optical UVOT light curve decayed with a slope of 1.97. The steepness and the similarity of the optical and X-ray decay rates suggest that the afterglow was observed after the jet break. Its redshift z=2.821 was measured by Berger & Becker (2005).

AB - We report the results of Swiftobservations of the Gamma Ray Burst GRB 050603. With a V magnitude V=18.2 10 hours after the burst, the optical afterglow was the brightest so far detected by Swift and one of the brightest afterglows ever seen at late times. The Burst Alert Telescope (BAT) trigger light curves showed three fast-rise-exponential-decay spikes with T 90=12±2s and a fluence of 7.6 × 10-6 ergs cm-2 in the 15-150 keV band. The Swift spacecraft started the observations of the afterglow with the narrow-field instruments about 10 hours after the detection of the burst. The burst was bright enough to be detected by the Swift UV/Optical telescope (UVOT) for almost 3 days and by the X-ray Telescope (XRT) for a week after the burst. The X-ray light curve showed a rapidly fading afterglow with a decay index α=1.76-0.07 +0.15 This is one of the steepest late time slopes seen by Swift so far. The X-ray energy spectral index was βX=0.71±0.10 with the absorption parameter in agreement with the Galactic value. The spectral analysis did not show an obvious change in the X-ray spectral slope over time. The optical UVOT light curve decayed with a slope of 1.97. The steepness and the similarity of the optical and X-ray decay rates suggest that the afterglow was observed after the jet break. Its redshift z=2.821 was measured by Berger & Becker (2005).

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Grupe D, Brown PJ, Retter A, Burrows DN, Nousek JA, Meszaros PI et al. Swift observations of GRB 050603. In GAMMA-RAY BURSTS IN THE SWIFT ERA: Sixteenth Maryland Astrophysics Conference. 2006. p. 432-435. (AIP Conference Proceedings). https://doi.org/10.1063/1.2207933