Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Guo, Hengxiao"'
Autor:
Zhou, Shuying, Sun, Mouyuan, Feng, Hai-Cheng, Li, Sha-Sha, Xue, Yongquan, Wang, Jun-Xian, Cai, Zhen-Yi, Bai, Jin-Ming, Li, Danyang, Guo, Hengxiao, Liu, H. T., Lu, Kai-Xing, Mao, Jirong, Marculewicz, Marcin, Wang, Jian-Guo
Resolving the inner structures of active galactic nuclei (AGNs) provides the "standard ruler" to measure the parallax distances of the Universe and a powerful way to weigh supermassive black holes (SMBHs). Thanks to time-domain observations, it is po
Externí odkaz:
http://arxiv.org/abs/2408.11292
Autor:
Wu, Qiaoya, Shen, Yue, Guo, Hengxiao, Anderson, Scott F., Brandt, W. N., Grier, Catherine J., Hall, Patrick B., Ho, Luis C., Homayouni, Yasaman, Horne, Keith, Li, Jennifer I-Hsiu, Schneider, Donald P.
Over three decades of reverberation mapping (RM) studies on local broad-line active galactic nuclei (AGNs) have measured reliable black-hole (BH) masses for $> 100$ AGNs. These RM measurements reveal a significant correlation between the Balmer broad
Externí odkaz:
http://arxiv.org/abs/2407.01737
Autor:
Ren, Wenke, Guo, Hengxiao, Shen, Yue, Silverman, John D., Burke, Colin J., Wang, Shu, Wang, Junxian
We introduce an improved method for decomposing the emission of active galactic nuclei (AGN) and their host galaxies using templates from principal component analysis (PCA). This approach integrates prior information from PCA with a penalized pixel f
Externí odkaz:
http://arxiv.org/abs/2406.17598
Autor:
Zuo, Wenwen, Guo, Hengxiao, Sun, Jingbo, Yuan, Qi, Lira, Paulina, Gu, Minfeng, Edwards, Philip G., Gupta, Alok C., Kishore, Shubham, Stevens, Jamie, An, Tao, Cai, Zhen-Yi, Feng, Haicheng, Ho, Luis C., Ilić, Dragana, Kovačević, Andjelka B., Li, ShaSha, Mezcua, Mar, Popović, Luka Č., Sun, Mouyuan, Tripathi, Tushar, U., Vivian, Vince, Oliver, Wang, Jianguo, Wang, Junxian, Wang, Shu, Wu, Xuebing, Zheng, Zhenya
To investigate the short-term variability and determine the size of the optical continuum emitting size of intermediate-mass black holes (IMBHs), we carried out high-cadence, multi-band photometric monitoring of a Seyfert 1 galaxy J0249-0815 across t
Externí odkaz:
http://arxiv.org/abs/2405.11750
Publikováno v:
2024, ApJ, 969, 78
Variability of active galactic nuclei (AGNs) has long been servicing as an essential avenue of exploring the accretion physics of black hole (BH). There are two commonly used methods for analyzing AGN variability. First, the AGN variability, characte
Externí odkaz:
http://arxiv.org/abs/2405.02584
NGC 4395 is a dwarf Seyfert 1 galaxy with a possible intermediate-mass black hole of several $\rm{10^4}$ solar masses in its center. As a well-studied object, its broad line region size has been measured via H$\rm{\alpha}$ time lag in numerous spectr
Externí odkaz:
http://arxiv.org/abs/2404.11495
Autor:
Feng, Fabo, Rui, Yicheng, Du, Zhimao, Lin, Qing, Zhang, Congcong, Zhou, Dan, Cui, Kaiming, Ogihara, Masahiro, Yang, Ming, Lin, Jie, Cai, Yongzhi, Yang, Taozhi, Pang, Xiaoying, Jian, Mingjie, Li, Wenxiong, Guo, Hengxiao, Shi, Xian, Shi, Jianchun, Li, Jianyang, Guo, Kangrou, Yao, Song, Chen, Aming, Jia, Peng, Tan, Xianyu, Jenkins, James S., Jiang, Hongxuan, Zhang, Mingyuan, Li, Kexin, Xiao, Guangyao, Zheng, Shuyue, Xuan, Yifan, Zheng, Jie, He, Min, Jones, Hugh R. A., Song, Cuiying
Publikováno v:
AcASn, 2024, 65:34
Giant planets like Jupiter and Saturn, play important roles in the formation and habitability of Earth-like planets. The detection of solar system analogs that have multiple cold giant planets is essential for our understanding of planet habitability
Externí odkaz:
http://arxiv.org/abs/2404.07149
Autor:
Wang, Shu, Woo, Jong-Hak, Gallo, Elena, Guo, Hengxiao, Son, Donghoon, Kong, Minzhi, Mandal, Amit Kumar, Cho, Hojin, Kim, Changseok, Shin, Jaejin
Changing-look (CL) Active Galactic Nuclei (AGNs), characterized by appearance/disappearance of broad emission lines in the span of a few years, present a challenge for the AGN unified model, whereby the Type 1 vs. Type 2 dichotomy results from orient
Externí odkaz:
http://arxiv.org/abs/2402.18131
Autor:
Guo, Hengxiao, Sun, Jingbo, Li, Shuang-Liang, Jiang, Yan-Fei, Wang, Tinggui, Bu, Defu, Jiang, Ning, Wang, Yanan, Yao, Yuhan, Shen, Rongfeng, Gu, Minfeng, Sun, Mouyuan
When a star passes through the tidal disruption radius of a massive black hole (BH), it can be torn apart by the tidal force of the BH, known as the Tidal Disruption Event (TDE). Since the UV/optical emitting region inferred from the blackbody radius
Externí odkaz:
http://arxiv.org/abs/2312.06771
We present the results of a continuum reverberation mapping study of the radio-quiet Seyfert 1 galaxy IRAS 09149-6206. The analysis was performed using X-ray, UV and optical observations made with the {\em Swift} telescope between January and Decembe
Externí odkaz:
http://arxiv.org/abs/2308.05433