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Statistical properties of GRB afterglow parameters as evidence of cosmological evolution of their host galaxies

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dc.contributor.author Beskin G.
dc.contributor.author Oganesyan G.
dc.contributor.author Greco G.
dc.contributor.author Karpov S.
dc.date.accessioned 2018-09-18T20:21:18Z
dc.date.available 2018-09-18T20:21:18Z
dc.date.issued 2014
dc.identifier.issn 1210-2709
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/139019
dc.description.abstract The results of a study of 43 peaked R-band light curves of optical counterparts of gamma-ray bursts with known redshifts are presented. The parameters of optical transients were calculated in the comoving frame, and then a search for pair correlations between them was conducted. A statistical analysis showed a strong correlation between the peak luminosity and the redshift both for pure afterglows and for events with residual gamma activity, which cannot be explained as an effect of observational selection.This suggests a cosmological evolution of the parameters of the local interstellar medium around the sources of the gamma-ray burst. In the models of forward and reverse shock waves, a relation between the density of the interstellar medium and the redshift was built for gamma-ray burst afterglows, leading to a power-law dependence of the star-formation rate at regions around GRBs on redshift with a slope of about 6. © Czech Technical University in Prague, 2014.
dc.relation.ispartofseries Acta Polytechnica
dc.subject Gamma-ray bursts
dc.subject Optical afterglows
dc.subject Statistical study
dc.title Statistical properties of GRB afterglow parameters as evidence of cosmological evolution of their host galaxies
dc.type Article
dc.relation.ispartofseries-issue 4
dc.relation.ispartofseries-volume 54
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 259
dc.source.id SCOPUS12102709-2014-54-4-SID84906851583


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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