Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Hengxiao, Guo"'
Autor:
Zhen-Bo Su, Zhen-Yi Cai, Jun-Xian Wang, Tinggui Wang, Yongquan Xue, Min-Xuan Cai, Lulu Fan, Hengxiao Guo, Zhicheng He, Zizhao He, Xu-Fan Hu, Ji-an Jiang, Ning Jiang, Wen-Yong Kang, Lei Lei, Guilin Liu, Teng Liu, Zhengyan Liu, Zhenfeng Sheng, Mouyuan Sun, Wen Zhao
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 155 (2024)
The interband lags among the optical broad-band continua of active galactic nuclei (AGNs) have been intensively explored over the past decade. However, the nature of the lags remains under debate. Here, utilizing two distinct scenarios for AGN variab
Externí odkaz:
https://doaj.org/article/94597f0e0d7247ccb75dcf5b18eb2a0b
Autor:
Wenwen Zuo, Hengxiao Guo, Jingbo Sun, Qi Yuan, Paulina Lira, Minfeng Gu, Philip G. Edwards, Alok C. Gupta, Shubham Kishore, Jamie Stevens, Tao An, Zhen-Yi Cai, Hai-Cheng Feng, Luis C. Ho, Dragana Ilić, Andjelka B. Kovačević, Sha-Sha Li, Mar Mezcua, Luka Č. Popović, Mouyuan Sun, Tushar Tripathi, Vivian U, Oliver Vince, Jianguo Wang, Junxian Wang, Shu Wang, Xuebing Wu, Zhenya Zheng
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 288 (2024)
To investigate the short-term variability and determine the size of the optical continuum emitting region of intermediate-mass black holes (IMBHs), we carried out high-cadence, multiband photometric monitoring of a Seyfert 1 galaxy J0249−0815 acros
Externí odkaz:
https://doaj.org/article/84f6e6d430d04084b24523678c74067a
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 153 (2024)
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:
https://doaj.org/article/f7f825b7a08943a8bca818262a1403ec
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 78 (2024)
The variability of active galactic nuclei (AGNs) has long been servicing as an essential avenue of exploring the accretion physics of a black hole (BH). There are two commonly used methods for analyzing AGN variability. First, the AGN variability, ch
Externí odkaz:
https://doaj.org/article/113a61819c424904b7a18c305be18d7c
Autor:
Shu Wang, Jong-Hak Woo, Elena Gallo, Hengxiao Guo, Donghoon Son, Minzhi Kong, Amit Kumar Mandal, Hojin Cho, Changseok Kim, Jaejin Shin
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 128 (2024)
Changing-look (CL) active galactic nuclei (AGNs), characterized by the 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 versus Type 2 dichotomy results from
Externí odkaz:
https://doaj.org/article/a7446c3bdde8433aa0310d1ad6abab53
Autor:
Jong-Hak Woo, Shu Wang, Suvendu Rakshit, Hojin Cho, Donghoon Son, Vardha N. Bennert, Elena Gallo, Edmund Hodges-Kluck, Tommaso Treu, Aaron J. Barth, Wanjin Cho, Adi Foord, Jaehyuk Geum, Hengxiao Guo, Yashashree Jadhav, Yiseul Jeon, Kyle M. Kabasares, Won-Suk Kang, Changseok Kim, Minjin Kim, Tae-Woo Kim, Huynh Anh N. Le, Matthew A. Malkan, Amit Kumar Mandal, Daeseong Park, Chance Spencer, Jaejin Shin, Hyun-il Sung, Vivian U, Peter R. Williams, Nick Yee
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 67 (2024)
We present the main results from a long-term reverberation mapping campaign carried out for the Seoul National University AGN Monitoring Project (SAMP). High-quality data were obtained during 2015–2021 for 32 luminous active galactic nuclei (AGNs;
Externí odkaz:
https://doaj.org/article/118912a1cbc54503bede1a5a195ee352
Publikováno v:
The Astrophysical Journal Letters, Vol 948, Iss 2, p L23 (2023)
Spectroscopic reverberation mapping (RM) is a direct approach widely used to determine the mass of black holes (BHs) in active galactic nuclei (AGNs). However, it is very time consuming and difficult to apply to a large AGN sample. The empirical rela
Externí odkaz:
https://doaj.org/article/fa531269ca834b71b0fb71ee22385b3a
Autor:
Lizvette Villafaña, Peter R. Williams, Tommaso Treu, Brendon J. Brewer, Aaron J. Barth, Vivian U, Vardha N. Bennert, Hengxiao Guo, Misty C. Bentz, Gabriela Canalizo, Alexei V. Filippenko, Elinor Gates, Michael D. Joner, Matthew A. Malkan, Jong-Hak Woo, Bela Abolfathi, Thomas Bohn, K. Azalee Bostroem, Andrew Brandel, Thomas G. Brink, Sanyum Channa, Maren Cosens, Edward Donohue, Goni Halevi, Carol E. Hood, J. Chuck Horst, Maxime de Kouchkovsky, Benjamin Kuhn, Douglas C. Leonard, Raúl Michel, Melanie Kae B. Olaes, Daeseong Park, Jordan N. Runco, Remington O. Sexton, Isaac Shivvers, Chance L. Spencer, Benjamin E. Stahl, Samantha Stegman, Jonelle L. Walsh, WeiKang Zheng
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 2, p 95 (2023)
We combine our dynamical modeling black-hole mass measurements from the Lick AGN Monitoring Project 2016 sample with measured cross-correlation time lags and line widths to recover individual scale factors, f , used in traditional reverberation-mappi
Externí odkaz:
https://doaj.org/article/0a962c5761b7483ebb44cb11f96f24c4
Autor:
Zhicheng He, Guilin Liu, Tinggui Wang, Guobin Mou, Richard Green, Weihao Bian, Huiyuan Wang, Luis C. Ho, Mouyuan Sun, Lu Shen, Nahum Arav, Chen Chen, Qingwen Wu, Hengxiao Guo, Zesen Lin, Junyao Li, Weimin Yi
Publikováno v:
Science Advances. 8
Quasar outflows may play a crucial role in regulating the host galaxy, although the spatial scale of quasar outflows remain a major enigma, with their acceleration mechanism poorly understood. The kinematic information of outflow is the key to unders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::729aa3cbbd50469f13cbeb1d8db737bd
https://doi.org/10.1126/sciadv.abk3291
https://doi.org/10.1126/sciadv.abk3291
Autor:
Burke, Colin J., Liu, Xin, Shen, Yue, Phadke, Kedar A., Yang, Qian, Hartley, William G., Harrison, Ian, Palmese, Antonella, Hengxiao, Guo, Zhang, Kaiwen, Kron, Richard, Turner, David J., Giles, Paul A., Lidman, Christopher, Chen, Yu-Ching, Gruendl, Robert A., Choi, Ami, Amon, Alexandra, Sheldon, Erin, Aguena, M., Allam, Sahar, Andrade-Oliveira, Felipe, Bacon, D., Bertin, E., Brooks, D., Carnero Rosell, Aurelio, Carrasco Kind, Matias, Carretero, J., Conselice, Christopher, Costanzi, M., da Costa, Luiz N., Pereira, Maria Elidaiana da Silva, Davis, Tamara M., De Vicente, J., Desai, S., Diehl, Herman T., Everett, S., Ferrero, Ismael, Flaugher, B., García-Bellido, J., Gaztañaga, Enrique, Gruen, D., Gschwend, J., Gutierrez, G., Hinton, Samuel R., Hollowood, Devon L., Honscheid, K., Hoyle, B., James, D. J., Kuehn, K., Maia, M. A. G., Marshall, Jennifer L., Menanteau, F., Miquel, R., Morgan, R., Paz-Chinchón, Francisco, Pieres, A., Plazas Malagón, Andrés A., Reil, K., Romer, A. K., Sanchez, E., Schubnell, M., Serrano, S., Sevilla-Noarbe, Ignacio, Smith, Mathew, Suchyta, E., Tarle, G., Thomas, D., To, Chun-Hao, Varga, Tamas Norbert, Wilkinson, R. D.
Publikováno v:
Burke, Colin J. Liu, Xin Shen, Yue Phadke, Kedar A. Yang, Qian Hartley, William G. Harrison, Ian Palmese, Antonella Hengxiao, Guo Zhang, Kaiwen Kron, Richard T
Monthly notices of the Royal Astronomical Society
Monthly notices of the Royal Astronomical Society
Externí odkaz:
http://hdl.handle.net/10852/99856
