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
收藏
页码：259 / 269
页数：11
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