The gamma-ray Doppler factor determinations for a Fermi blazar sample

被引：54

作者：

Fan, Jun-Hui ^{[1
,2
]}

Yang, Jiang-He ^{[3
]}

Liu, Yi ^{[1
,2
]}

Zhang, Jing-Yi ^{[1
,2
]}

机构：

[1] Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China

[2] Dept Educ Guangdong Prov, Astron Sci & Technol Res Lab, Guangzhou 510006, Guangdong, Peoples R China

[3] Hunan Univ Arts & Sci, Dept Phys & Elect Sci, Changde 415000, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2013年 / 13卷 / 03期

基金：

中国国家自然科学基金;

关键词：

galaxies: active; galaxies: BL Lacertae objects; galaxies: quasars; galaxies: jets; ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; BL-LACERTAE OBJECTS; EXTRAGALACTIC RADIO-SOURCES; LOUD BLAZARS; LORENTZ FACTORS; VIEWING ANGLES; SOURCE CATALOG; VARIABILITY; EMISSION;

D O I：

10.1088/1674-4527/13/3/002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observations suggest that gamma-ray loud blazars are strongly beamed. The Fermi mission has detected many of blazars, which provide us with a good opportunity to investigate the emission mechanism and the beaming effect in the gamma-ray region. We compiled the X-ray observations for 138 Fermi blazars (54 flat spectrum radio quasars, 36 low-peaked BL Lacertae objects, and 48 high-peaked BL Lacertae objects) and calculated their Doppler factors, delta(gamma) . It is interesting that the calculated Doppler factors, delta(gamma), are strongly correlated with the gamma-ray luminosity.

引用

页码：259 / 269

页数：11

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