Jet Power of Jetted Active Galactic Nuclei: Implications for Evolution and Unification

Jet Power of Jetted Active Galactic Nuclei: Implications for Evolution and Unification
复制标题

喷射活动星系核的喷射功率:对演化和统一的影响

DOI:
10.3847/1538-4357/ab25f1
复制
发表时间:
2019-05
影响因子:
4.9
通讯作者:
Wu Qingwen
Wu Qingwen
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Fan Xu Liang(博士后);Wu Qingwen

文献摘要

参考文献

被引文献

相似文献

我们构建的样品喷射活动星系核(AGN)与低频无线电数据从最近发布的TGSS AD 1目录在150 MHz。利用这些样本,我们比较了耀变体、射电强窄线塞弗特1星系(RL-NLS 1)、年轻射电源(YRS)和射电星系的喷流功率特性。喷流盘连接,和统一的喷流活动星系核进行了探讨。在爱丁顿比率-爱丁顿尺度喷流功率平面上,喷流活动星系核一般可分为两类。低功率射电星系、低激发FR II(LEG/FR II)和大多数YRS的吸积功率大于喷流功率,而FSRQs、RL-NLS 1和高激发FR II(HEG/FR II)的吸积功率大于喷流功率。LEG/FR II与HEG/FR II具有相似的喷流功率特性,但吸积特性与后者不同。这些事实表明,从HEG/FR IIs到LEG/FR IIs再到FR Is的演化顺序是,吸积和喷流活动逐渐减弱。LEG/FR II是吸积过程已经关闭的过渡物体,而喷流仍然活跃。在修正了耀变体射电核的贡献后,利用喷流功率分布证实了耀变体与射电星系的统一。涉及RL-NLS 1 s的统一比黑洞生长或取向效应的简单场景更复杂。此外,我们的研究结果表明,低同步辐射峰值BL Lac对象(LBLs)包含两个不同的组关于喷流功率的分布,一组是类似于FSRQs和其他类似的中间同步辐射峰值BL Lac对象。具有较高喷射功率的LBL可能是LEG/FR II的对齐对应物。
We construct samples of jetted active galactic nuclei (AGNs) with low-frequency radio data from the recently released TGSS AD1 catalog at 150 MHz. With these samples, we compare the properties of jet power for blazars, radio-loud narrow-line Seyfert 1 galaxies (RL-NLS1s), young radio sources (YRSs), and radio galaxies. The jet–disk connection, and the unification of jetted AGNs are explored. On the Eddington ratio–Eddington-scaled jet power plane, jetted AGNs can generally be divided into two populations. Low power radio galaxies, low excitation FR IIs (LEG/FR IIs), and most YRSs show larger jet power than accretion power, while on the contrary FSRQs, RL-NLS1s, and high excitation FR IIs (HEG/FR IIs) show larger accretion power than jet power. LEG/FR IIs share similar jet power properties with HEG/FR IIs, while their accretion properties are different from the latter. These facts suggest an evolutional sequence from HEG/FR IIs, LEG/FR IIs to FR Is, where the accretion and jet activities get dimmed gradually. LEG/FR IIs are the transitional objects that accretion processes have switched off, while jets are still active. After correcting the contribution from the radio core of blazars, the unification between blazars and radio galaxies is confirmed with the jet power distributions. The unification that involved RL-NLS1s is more complicated than the simple scenarios of black hole growth or orientation effect. In addition, our results manifest that low synchrotron peaked BL Lac objects (LBLs) contain two distinct groups regarding the distribution of jet power, with one group being similar to FSRQs and the other similar to intermediate synchrotron peaked BL Lac objects. The LBLs with higher jet powers might be the aligned counterparts of LEG/FR IIs.
DOI: 10.1093/mnras/stv200
发表时间: 2014-11
影响因子: 4.8
作者:
M. Janiak;M. Sikora;R. Moderski
通讯作者: M. Janiak;M. Sikora;R. Moderski
DOI: 10.1111/j.1365-2966.2004.07822.x
发表时间: 2004-03
影响因子: 4.8
作者:
D. Marchesini;A. Celotti;L. F. S. -. Trieste;Rutgers University
通讯作者: D. Marchesini;A. Celotti;L. F. S. -. Trieste;Rutgers University
DOI: 10.1051/0004-6361/201629287
发表时间: 2016-10
期刊: arXiv: High Energy Astrophysical Phenomena
影响因子: --
作者:
A. Capetti;F. Massaro;R. D. Baldi
通讯作者: A. Capetti;F. Massaro;R. D. Baldi
DOI: 10.1111/j.1365-2966.2009.15127.x
发表时间: 2009-05
影响因子: 4.8
作者:
Qingwen Wu
通讯作者: Qingwen Wu