摘要
通过分析所收集到的费米耀变体(FSRQs和BL Lacs)和射电噪类窄线赛弗特1星系(RLNLS1s)来研究它们之间的关系.利用射电噪度参数将RLNLS1s分为低射电噪窄线赛弗特1星系(L-RLNLS1s)和高射电噪窄线赛弗特1星系(V-RLNLS1s),结果表明:(1)将logRv作为聚束效应的指标,与BL Lacs和L-RLNLS1s相比较,V-RLNLS1s具有较高的logRv,这说明V-RLNLS1s具有更高的聚束效应;(2)根据FRI和FRII的分界线(logPjet-logMBH),发现V-RLNLS1s和FRSQs大体上与BL Lacs分离,这些结果支持了FSRQs、V-RLNLS1s和FRII射电星系的统一性;(3)V-RLNLS1s遵循费米blazars中的logPjet-logLdisk相关关系,这一结果表明V-RLNLS1s喷流的形成机制与费米blazars相似;(4)大多数L-RLNLS1s、V-RLNLS1s和FSRQs具有logPjet<logLdisk,说明L-RLNLS1s、V-RLNLS1s和FSRQs具有较强的吸积盘.
We use a large sample of Fermi blazars(flatspectrum radio quasars:FSRQs,and BL Lacertae objects:BL Lacs)and radio-loud narrow-line Seyfert 1 galaxies(RLNLS1s)to study the relation between them.We divide the RLNLS1s into low RLNLS1s(L-RLNLS1s)and high RLNLS1s(V-RLNLS1s)based on the radio-loudness parameter.Our results are as follows.(1)With logRv as an indicator of the beaming effect,compared with BL Lacs and L-RLNLS1s,V-RLNLS1s have a higher median logRv,which suggests that V-RLNLS1s have a strong beaming effect.(2)According to the dividing line between FRI and FRII in logPjet-logMBH relation,we find that V-RLNLS1s and FRSQs are roughly separated from BL Lacs,which support the unification of FSRQs,V-RLNLS1s,and FRII radio galaxies.(3)The V-RLNLS1s follow the logPjet-logLdisk correlation seen among Fermi blazars,which implies that the formation mechanisms of the jet of V-RLNLS1s are similar to Fermi blazars.(4)The most of L-RLNLS1s,V-RLNLS1s,and FSRQs have logPjet<logLdisk,which suggests that L-RLNLS1s,VRLNLS1s,and FSRQs have a strong accretion disk.
作者
黄霞
陈永云
马力
李怀珍
HUANG Xia;CHEN Yongyun;MA Li;LI Huaizhen(Haiyuan college,Kunming Medical University,Kunming 651700,China;Qujing Normal University,Qujing 655000,China;School of Physics and Electronic Information,Yunnan Normal University,Kunming 650500,China;Yuxi Normal University,Xuxi 653100,China)
出处
《玉溪师范学院学报》
2023年第6期48-59,共12页
Journal of Yuxi Normal University
基金
云南省教育厅基金项目“费米耀变体和射电噪类窄线赛弗特1星系之间的关系”(项目编号:2023J1402).
