X-ray line emission in Swift XRT spectra?

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

Abstract

We report initial results from an automated XRT spectral pipeline running at Berkeley. The data are fit in near real time and searched for emission lines. For the period between GRBs 050401 and 051117B, there are nearly 12 Msec of XRT data, which can be divided into 67 spectra each with > 500 cts. We discuss limits on Fe line emission for the bursts with measured redshifts. We find no highly significant emission lines as outliers in the overall population. However, there are interesting outliers in terms of the continuum fit parameters. From this we find evidence for thermal emission components in some of the bright XRT flares. Our automated software performs a blind search for emission lines and appears to also trigger on these regions of particularly soft spectra. This may indicate that some of the soft flare emission is in the form of lines.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages259-264
Number of pages6
Volume836
DOIs
StatePublished - May 19 2006
Externally publishedYes
EventGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C., United States
Duration: Nov 29 2005Dec 2 2005

Other

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

Fingerprint

x rays
flares
thermal emission
bursts
actuators
continuums
computer programs

Keywords

  • Gamma rays: bursts
  • Supernovae: general

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Butler, N. (2006). X-ray line emission in Swift XRT spectra? In AIP Conference Proceedings (Vol. 836, pp. 259-264) https://doi.org/10.1063/1.2207898

X-ray line emission in Swift XRT spectra? / Butler, Nathaniel.

AIP Conference Proceedings. Vol. 836 2006. p. 259-264.

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

Butler, N 2006, X-ray line emission in Swift XRT spectra? in AIP Conference Proceedings. vol. 836, pp. 259-264, GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference, Washington, D.C., United States, 11/29/05. https://doi.org/10.1063/1.2207898
Butler N. X-ray line emission in Swift XRT spectra? In AIP Conference Proceedings. Vol. 836. 2006. p. 259-264 https://doi.org/10.1063/1.2207898
Butler, Nathaniel. / X-ray line emission in Swift XRT spectra?. AIP Conference Proceedings. Vol. 836 2006. pp. 259-264
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