Premium
A classification scheme for magnetars
Author(s) -
Göğüs E.
Publication year - 2014
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201312035
Subject(s) - magnetar , transient (computer programming) , astrophysics , physics , flux (metallurgy) , radiative transfer , classification scheme , neutron star , computer science , chemistry , optics , operating system , organic chemistry , information retrieval
We investigate cumulative burst occurrence trends of five soft gamma repeaters (SGRs) and introduce an indicative mea‐sure for the duration of their outburst phases. We find a clear distinction between the durations of the active episodes of persistent and transient magnetars: The outburst episodes of the persistent sources are significantly longer (≲100 days) than those of transient sources (≲10 days). We also investigate burst‐induced changes in the radiative behavior of transient sources and suggest a mechanism for the constant flux trend seen in the early phases of the outburst of SGRs with low burst rates. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)