Spectral evolution of PKS 2155-304 during the ASCA long-look campaign

被引：0

作者：

Kouda, M ^{[1
]}

Tanihata, C ^{[1
]}

Takahashi, T ^{[1
]}

Tashiro, M ^{[1
]}

Kataoka, J ^{[1
]}

机构：

[1] ISAS, Sagamihara, Kanagawa 2298510, Japan

来源：

NEW CENTURY OF X-RAY ASTRONOMY | 2001年 / 251卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We collected all light curves of the TeV blazar PKS 2155-304, spanning over 12 years, obtained by both Ginga and ASCA. Taking the advantage that Ginga covers a higher energy range compared to ASCA, we confirmed the amplitude of the variations being larger at higher energies, which is consistent with the synchrotron picture of the X-ray jet. We also report on the recent ASCA continuous 10-day observation of this source. In spite of its low flux compared to previous observations, we detected significant daily variations, and found that there was actually no particular quiescent period throughout our observation.

引用

页码：376 / 377

页数：2

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