Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT

T. Sakamoto, L. Barbier, S. Barthelmy, J. Cummings, E. Fenimore, N. Gehrels, D. Hullinger, H. Krimm, C. Markwardt, D. Palmer, A. Parsons, G. Sato, J. Tueller

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

Abstract

We report Swift Burst Alert Telescope (BAT) observations of the X-ray Flash (XRF) XRF 050416A. The fluence ratio between the 15-25 and 25-50 keV bands of this event is 1.1, thus making it the softest gamma-ray burst (GRB) observed by BAT so far. The spectrum is well fitted by the Band function with E peak obs of 15.6 -2.7 +2.3keV. Assuming the redshift of the host galaxy (z=0.6535), the isotropic-equivalent energy E iso and the E peak energy at the GRB rest frame (E peak src) of XRF 050416A are not only consistent with the correlation found by Amati et al. and extended to XRFs by Sakamoto et al., but also fill-in the gap of this relation around 30-80 keV range of E peak src. This result tightens the validity of the E peak src-E iso relation form XRFs to GRBs.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages578-581
Number of pages4
Volume836
DOIs
Publication statusPublished - 2006 May 19
EventGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C.
Duration: 2005 Nov 292005 Dec 2

Other

OtherGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference
CityWashington, D.C.
Period05/11/2905/12/2

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flash
bursts
telescopes
x rays
gamma ray bursts
fluence
galaxies
energy

Keywords

  • Prompt gamma-ray emission
  • X-ray flash

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sakamoto, T., Barbier, L., Barthelmy, S., Cummings, J., Fenimore, E., Gehrels, N., ... Tueller, J. (2006). Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT. In AIP Conference Proceedings (Vol. 836, pp. 578-581) https://doi.org/10.1063/1.2207958

Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT. / Sakamoto, T.; Barbier, L.; Barthelmy, S.; Cummings, J.; Fenimore, E.; Gehrels, N.; Hullinger, D.; Krimm, H.; Markwardt, C.; Palmer, D.; Parsons, A.; Sato, G.; Tueller, J.

AIP Conference Proceedings. Vol. 836 2006. p. 578-581.

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

Sakamoto, T, Barbier, L, Barthelmy, S, Cummings, J, Fenimore, E, Gehrels, N, Hullinger, D, Krimm, H, Markwardt, C, Palmer, D, Parsons, A, Sato, G & Tueller, J 2006, Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT. in AIP Conference Proceedings. vol. 836, pp. 578-581, GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference, Washington, D.C., 05/11/29. https://doi.org/10.1063/1.2207958
Sakamoto T, Barbier L, Barthelmy S, Cummings J, Fenimore E, Gehrels N et al. Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT. In AIP Conference Proceedings. Vol. 836. 2006. p. 578-581 https://doi.org/10.1063/1.2207958
Sakamoto, T. ; Barbier, L. ; Barthelmy, S. ; Cummings, J. ; Fenimore, E. ; Gehrels, N. ; Hullinger, D. ; Krimm, H. ; Markwardt, C. ; Palmer, D. ; Parsons, A. ; Sato, G. ; Tueller, J. / Confirmation of the E peak src-E iso (Amati) relation from the X-ray flash XRF 050416A observed by Swift/BAT. AIP Conference Proceedings. Vol. 836 2006. pp. 578-581
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AU - Barthelmy, S.

AU - Cummings, J.

AU - Fenimore, E.

AU - Gehrels, N.

AU - Hullinger, D.

AU - Krimm, H.

AU - Markwardt, C.

AU - Palmer, D.

AU - Parsons, A.

AU - Sato, G.

AU - Tueller, J.

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N2 - We report Swift Burst Alert Telescope (BAT) observations of the X-ray Flash (XRF) XRF 050416A. The fluence ratio between the 15-25 and 25-50 keV bands of this event is 1.1, thus making it the softest gamma-ray burst (GRB) observed by BAT so far. The spectrum is well fitted by the Band function with E peak obs of 15.6 -2.7 +2.3keV. Assuming the redshift of the host galaxy (z=0.6535), the isotropic-equivalent energy E iso and the E peak energy at the GRB rest frame (E peak src) of XRF 050416A are not only consistent with the correlation found by Amati et al. and extended to XRFs by Sakamoto et al., but also fill-in the gap of this relation around 30-80 keV range of E peak src. This result tightens the validity of the E peak src-E iso relation form XRFs to GRBs.

AB - We report Swift Burst Alert Telescope (BAT) observations of the X-ray Flash (XRF) XRF 050416A. The fluence ratio between the 15-25 and 25-50 keV bands of this event is 1.1, thus making it the softest gamma-ray burst (GRB) observed by BAT so far. The spectrum is well fitted by the Band function with E peak obs of 15.6 -2.7 +2.3keV. Assuming the redshift of the host galaxy (z=0.6535), the isotropic-equivalent energy E iso and the E peak energy at the GRB rest frame (E peak src) of XRF 050416A are not only consistent with the correlation found by Amati et al. and extended to XRFs by Sakamoto et al., but also fill-in the gap of this relation around 30-80 keV range of E peak src. This result tightens the validity of the E peak src-E iso relation form XRFs to GRBs.

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