Zobrazeno 1 - 10
of 1 228
pro vyhledávání: '"Wang, Jian min"'
It has been found that some quasars are undergoing quasi-periodic variations (most of them with damped amplitudes) in optical bands from long-term monitoring campaigns, but how to explain the origin of such light curve variations still remains an ope
Externí odkaz:
http://arxiv.org/abs/2412.17728
There is growing evidence for star formation inside outflows of active galactic nuclei (AGNs). The formed stars are injected into bulges and give rise to perturbation of bulges. In this paper, we investigate the issues of non-rotating, spherically sy
Externí odkaz:
http://arxiv.org/abs/2412.17725
Autor:
Li, Yan-Rong, Wang, Jian-Min
The reverberation mapping (RM) technique has seen wide applications in probing geometry and kinematics of broad-line regions (BLRs) and measuring masses of supermassive black holes (SMBHs) in active galactic nuclei. However, the key quantities in RM
Externí odkaz:
http://arxiv.org/abs/2412.10777
Autor:
Pandey, Ashwani, Hu, Chen, Wang, Jian-Min, Czerny, Bozena, Chen, Yong-Jie, Songsheng, Yu-Yang, Wang, Yi-Lin, Zhang, Hao, Aceituno, Jesus
In our previous study, we identified a shift in the synchrotron peak frequency of the blazar B2 1308$+$326 from 10$^{12.9}$ Hz to 10$^{14.8}$ Hz during a flare, suggesting it could be a changing-look blazar (CLB). In this work, we investigate the CL
Externí odkaz:
http://arxiv.org/abs/2412.10552
Autor:
Songsheng, Yu-Yang, Wang, Jian-Min, Cao, Yuan, Chen, XueFei, Xiong, JianPing, Zhang, Zhi-Xiang, Cai, Rong-Gen
The growing ``Hubble tension'' has prompted the need for precise measurements of cosmological distances. This paper demonstrates a purely geometric approach for determining the distance to extragalactic binaries through a joint analysis of spectroast
Externí odkaz:
http://arxiv.org/abs/2412.08889
Autor:
Lu, Kai-Xing, Li, Yan-Rong, Wu, Qingwen, Ho, Luis C., Zhang, Zhi-Xiang, Feng, Hai-Cheng, Li, Sha-Sha, Chen, Yong-Jie, Sun, Mouyuan, Shu, Xinwen, Guo, Wei-Jian, Cheng, Cheng, Wang, Jian-Guo, Kim, Dongchan, Wang, Jian-Min, Bai, Jin-Ming
Changing-look active galactic nuclei (CL-AGNs), characterized by emerging or disappearing of broad lines accompanied with extreme continuum flux variability, have drawn much attention for their potential of revealing physical processes underlying AGN
Externí odkaz:
http://arxiv.org/abs/2411.18917
A stellar-mass black hole, embedded within the accretion disk of an active galactic nuclei (AGN), has the potential to accrete gas at a rate that can reach approximately $\sim 10^9$ times the Eddington limit. This study explores the potential for nuc
Externí odkaz:
http://arxiv.org/abs/2411.07531
Autor:
Netzer, Hagai, Goad, Michael R., Barth, Aaron J., Cackett, Edward M., Horne, Keith, Hu, Chen, Kara, Erin, Korista, Kirk T., Kriss, Gerard A., Lewin, Collin, Montano, John, Arav, Nahum, Behar, Ehud, Brotherton, Michael S., Chelouche, Doron, de Rosa, Gisella, Bonta, Elena Dalla, Dehghanian, Maryam, Ferland, Gary J., Fian, Carina, Homayouni, Yasaman, Ilic, Dragana, Kaspi, Shai, Kovacevic, Andjelka B., Landt, Hermine, Popovic, Luka C., Storchi-Bergmann, Thaisa, Wang, Jian-Min, Zaidouni, Fatima
The local (z=0.0315) AGN Mrk 817, was monitored over more than 500 days with space-borne and ground-based instruments as part of a large international campaign AGN STORM 2. Here, we present a comprehensive analysis of the broad-band continuum variati
Externí odkaz:
http://arxiv.org/abs/2410.02652
The gravitational wave (GW) event GW190521, likely originating from a binary black hole (BBH) merger within an active galactic nucleus (AGN) disk, is associated with the optical flare ZTF19abanrhr. The remnant BHs from BBH mergers can launch the jet
Externí odkaz:
http://arxiv.org/abs/2409.18567
Autor:
Yao, Zhu-Heng, Yang, Sen, Guo, Wei-Jian, Chen, Yong-Jie, Songsheng, Yu-Yang, Bao, Dong-Wei, Jiang, Bo-Wei, Wang, Yi-Lin, Zhang, Hao, Hu, Chen, Li, Yan-Rong, Du, Pu, Xiao, Ming, Bai, Jin-Ming, Ho, Luis C., Brotherton, Michael S., Aceituno, Jesús, Winkler, Hartmut, Wang, Jian-Min
Over the past three decades, multiple reverberation mapping (RM) campaigns conducted for the quasar PG 2130+099 have exhibited inconsistent findings with time delays ranging from $\sim$10 to $\sim$200 days. To achieve a comprehensive understanding of
Externí odkaz:
http://arxiv.org/abs/2408.17407