Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The conspicuous gamma-ray burst of 30 May 1996
2005 (English)In: Nuovo cimento della societa italiana de fisica. C, Geophysics and space physics, ISSN 1124-1896, E-ISSN 1826-9885, Vol. 28, no 3, 335-338 p.Article in journal (Refereed) Published
Abstract [en]

The spectra of the majority of bursts exhibit a low-energy power law index, a, that is either a constant or becomes softer with time. However, in the burst of 30 May 1996 a becomes harder. Here we show that this behavior can be explained by a hybrid model consisting of a thermal and a non-thermal component. In this burst the power law index of the non-thermal component changes drastically from s similar to -1.5 to s similar to -0.67 at approximately 5 seconds after the trigger, thereby revealing, at low energies, the thermal component with its hard Rayleigh-Jeans tail. This leads to the large alpha-values that are found if the Band function is fitted to the spectra. We suggest that the change in s could be due to a transition from fast to slow cooling of the electrons emitting in the BATSE range. This could be due to the fact that the magnetic field strength becomes weaker.

Place, publisher, year, edition, pages
2005. Vol. 28, no 3, 335-338 p.
Keyword [en]
high-energy, evolution
Identifiers
URN: urn:nbn:se:kth:diva-15219ISI: 000233646000022OAI: oai:DiVA.org:kth-15219DiVA: diva2:333260
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text

Authority records BETA

Ryde, Felix

Search in DiVA

By author/editor
Ryde, Felix
In the same journal
Nuovo cimento della societa italiana de fisica. C, Geophysics and space physics

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 33 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf