Observational differences between Swift GRB classes

L. G. Balázs, I. Horváth, Zs Bagoly, P. Veres, D. Szécsi

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


There are accumulating evidences that GRBs have an intermediate group, beside the short and long classes. Based on the observational data available in the Swift table we compared the observational γ and X ray properties of GRBs making use the discriminant analysis of the multivariate mathematical statistics. The analysis resulted in two canonical discriminating functions giving the maximum separation between the groups. The first discriminating function is dominated by the γ and X-ray fluence while the second one is almost identical with the photon index.

Original languageEnglish
Title of host publicationGamma Ray Bursts 2010, GRB 2010
Number of pages4
Publication statusPublished - Sep 12 2011
EventGamma Ray Bursts 2010, GRB 2010 - Annapolis, MD, United States
Duration: Nov 1 2010Nov 4 2010

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherGamma Ray Bursts 2010, GRB 2010
CountryUnited States
CityAnnapolis, MD


  • γ-ray bursts
  • γ-ray sources

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Balázs, L. G., Horváth, I., Bagoly, Z., Veres, P., & Szécsi, D. (2011). Observational differences between Swift GRB classes. In Gamma Ray Bursts 2010, GRB 2010 (pp. 231-234). (AIP Conference Proceedings; Vol. 1358). https://doi.org/10.1063/1.3621778