Multifrequency emission analysis of TeV blazars H 2356–309 and 1ES 1218+304

作     者：Yun-YongTang Zu-Cheng Dai Li Zhang 

作者机构：Department of Physics Yunnan University Kunming 650091 China tangyunyong888@ *** Department of Physical Science and Technology Kunming University Kunming 650031 China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2010年第10卷第5期

页      面：415-426页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080402[工学-测试计量技术及仪器] 070401[理学-天体物理] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10778702 and 10803005) the 973 Program (2009CB824800) Yunnan Province under grant 2009 OC 

主　　题：radiation mechanisms — active-BL Lacertae objects — TeV blazars:individual (H 2356–309 1ES 1218+304) 

摘      要：The multiband nonthermal emissions in radio, X-ray, and very high-energy（VHE） γ-ray bands from two distant blazars, H 2356–309 and 1ES 1218＋304, havebeen detected, and, especially from recent observations with the Suzaku, MAGICand VERITAS telescopes, clearly reveal nonthermal power-law spectra. We study thebroadband nonthermal spectra of the two sources by using a combination of a one-zone homogeneous synchrotron self-Compton （SSC） model and an inhomogeneousconical jet model, where the new external background light （EBL） model is taken intoaccount. The results show that （1） the nonthermal emissions of the two blazars, rang-ing from X-rays to VHE γ-rays, are from the homogeneous zone whereas the emis-sions in the radio bands can be explained as the radiation from the inhomogeneousconical jet; （2） a strict lower-limit EBL model can be used to explain their observedspectra well.