Symmetric variability of gamma-ray emitting blazars

Kenji Yoshida, Yuji Motokawa

研究成果: Conference article

抄録

Symmetric and triangle-shaped flux variability in X-ray and gamma-ray light curves has been observed in many blazars. In this work, we carried out a statistical approach to X-ray and gamma- ray variability characteristics of flares in gamma-ray emitting blazars using archive data. Our results suggest that the time scale of the rise time in flares is equal to that of the decay time. Our results also suggest that the harder flare spectra show the larger spectral variability for the X-ray and gamma-ray flares. In this proceeding, we also discuss a simple model that represent the characteristic X-ray and gamma-ray variability: nearly equal the rise time and decay time, the harder spectral change with the increasing flux, and the larger flare spectral change with the harder spectrum.

元の言語English
記事番号858
ジャーナルProc. of 34th ICRC
30-July-2015
出版物ステータスPublished - 2015

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blazars
flares
gamma rays
x rays
decay
triangles
light curve

ASJC Scopus subject areas

  • General

これを引用

Symmetric variability of gamma-ray emitting blazars. / Yoshida, Kenji; Motokawa, Yuji.

:: Proc. of 34th ICRC, 巻 30-July-2015, 858, 2015.

研究成果: Conference article

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AB - Symmetric and triangle-shaped flux variability in X-ray and gamma-ray light curves has been observed in many blazars. In this work, we carried out a statistical approach to X-ray and gamma- ray variability characteristics of flares in gamma-ray emitting blazars using archive data. Our results suggest that the time scale of the rise time in flares is equal to that of the decay time. Our results also suggest that the harder flare spectra show the larger spectral variability for the X-ray and gamma-ray flares. In this proceeding, we also discuss a simple model that represent the characteristic X-ray and gamma-ray variability: nearly equal the rise time and decay time, the harder spectral change with the increasing flux, and the larger flare spectral change with the harder spectrum.

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