dc.contributor.author | Curran, P. A. | |
dc.contributor.author | Page, M. J. | |
dc.contributor.author | van der Horst, A. J. | |
dc.contributor.author | Evans, P. A. | |
dc.contributor.author | DE PASQUALE, Massımılıano | |
dc.date.accessioned | 2022-02-18T11:03:09Z | |
dc.date.available | 2022-02-18T11:03:09Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Curran P. A. , Evans P. A. , DE PASQUALE M., Page M. J. , van der Horst A. J. , "ON THE ELECTRON ENERGY DISTRIBUTION INDEX OF SWIFT GAMMA-RAY BURST AFTERGLOWS", ASTROPHYSICAL JOURNAL LETTERS, cilt.716, sa.2, 2010 | |
dc.identifier.issn | 2041-8205 | |
dc.identifier.other | av_d17ae286-40bd-4fde-afc2-594d1d8caa13 | |
dc.identifier.other | vv_1032021 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/180389 | |
dc.identifier.uri | https://doi.org/10.1088/2041-8205/716/2/l135 | |
dc.description.abstract | The electron energy distribution index, p, is a fundamental parameter of the synchrotron emission from a range of astronomical sources. Here we examine one such source of synchrotron emission, gamma-ray burst (GRB) afterglows observed by the Swift satellite. Within the framework of the blast wave model, we examine the constraints placed on the distribution of p by the observed X-ray spectral indices and parameterize the distribution. We find that the observed distribution of spectral indices are inconsistent with an underlying distribution of p composed of a single discrete value but consistent with a Gaussian distribution centered at p = 2.36 and having a width of 0.59. Furthermore, accepting that the underlying distribution is a Gaussian, we find that the majority (greater than or similar to 94%) of GRB afterglows in our sample have cooling break frequencies less than the X-ray frequency. | |
dc.language.iso | eng | |
dc.subject | General Physics and Astronomy | |
dc.subject | ASTRONOMİ VE ASTROFİZİK | |
dc.subject | Uzay bilimi | |
dc.subject | Temel Bilimler (SCI) | |
dc.subject | Fizik | |
dc.subject | Astronomi ve Astrofizik | |
dc.subject | Temel Bilimler | |
dc.subject | Physics and Astronomy (miscellaneous) | |
dc.subject | Space and Planetary Science | |
dc.subject | Astronomy and Astrophysics | |
dc.subject | Physical Sciences | |
dc.title | ON THE ELECTRON ENERGY DISTRIBUTION INDEX OF SWIFT GAMMA-RAY BURST AFTERGLOWS | |
dc.type | Makale | |
dc.relation.journal | ASTROPHYSICAL JOURNAL LETTERS | |
dc.contributor.department | University Of London , , | |
dc.identifier.volume | 716 | |
dc.identifier.issue | 2 | |
dc.contributor.firstauthorID | 3378016 | |