Zobrazeno 1 - 10
of 784
pro vyhledávání: '"Guo An Jian"'
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
Autor:
Xi, Hongwei, Peng, Bo, Staveley-Smith, Lister, For, Bi-Qing, Liu, Bin, Chen, Ru-Rong, Yu, Lei, Ding, Dejian, Guo, Wei-Jian, Zou, Hu, Xue, Suijian, Wang, Jing, Brink, Thomas G., Zheng, WeiKang, Filippenko, Alexei V., Yang, Yi, Wei, Jianyan, Dai, Y. Sophia, Li, Zi-Jian, He, Zizhao, Jiang, Chengzi, Moiseev, Alexei, Kotov, Sergey
Publikováno v:
ApJL, 966(2024), L36
Neutral hydrogen (HI) is the primary component of the cool interstellar medium (ISM) and is the reservoir of fuel for star formation. Owing to the sensitivity of existing radio telescopes, our understanding of the evolution of the ISM in galaxies rem
Externí odkaz:
http://arxiv.org/abs/2408.00419
Autor:
Guo, Wei-Jian, Zou, Hu, Greenwell, Claire L., Alexander, David M., Fawcett, Victoria A., Pan, Zhiwei, Siudek, Malgorzata, Aguilar, Jessica Nicole, Ahlen, Steven, Brooks, David, Claybaugh, Todd, Dawson, Kyle, De La Macorra, Axel, Doel, Peter, Font-Ribera, Andreu, Gaztanaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Kehoe, Robert, Kisner, Theodore, Landriau, Martin, Guillou, Laurent Le, Manera, Marc, Meisner, Aaron, Mique, Ramon, Moustakas, John, Prada, Francisco, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Sprayberry, David, Sui, Jipeng, Tarle, Gregory, Weaver, Benjamin Alan, Xiao, Yun-Ao, Zou, Siwei
We present the identification of changing-look active galactic nuclei (CL-AGNs) from the Dark Energy Spectroscopic Instrument First Data Release and Sloan Digital Sky Survey Data Release 16 at z \leq 0.9. To confirm the CL-AGNs, we utilize spectral f
Externí odkaz:
http://arxiv.org/abs/2408.00402
Autor:
Xiao, Yun-Ao, Zou, Hu, Xu, Xin, Feng, Lu, Guo, Wei-Jian, Li, Wenxiong, Shen, Zhixia, Singh, Gaurav, Sui, Jipeng, Wang, Jiali, Xue, Suijian
In this study, we present the construction of a new proper motion catalog utilizing the photometric data from the Sloan Digital Sky Survey (SDSS) and Dark Energy Spectroscopic Instrument (DESI) imaging surveys, with a median time baseline of about 13
Externí odkaz:
http://arxiv.org/abs/2405.04016
Autor:
Guo, Wei-Jian, Zou, Hu, Fawcett, Victoria Anne, Canning, Rebecca, Juneau, Stephanie, Davis, Tamara M., Alexander, David M., Jiang, Linhua, Aguilar, Jessica Nicole, Ahlen, Steven, Brooks, David, Claybaugh, Todd, de la Macorra, Axel, Doel, Peter, Fanning, Kevin, Forero-Romero, Jaime E., Gontcho, Satya Gontcho A, Honscheid, Klaus, Kisner, Theodore, Kremin, Anthony, Landriau, Martin, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Nie, Jundan, Pan, Zhiwei, Poppett, Claire, Prada, Francisco, Rezaie, Mehdi, Rossi, Graziano, Siudek, Małgorzata, Sanchez, Eusebio, Schubnell, Michael, Seo, Hee-Jong, Sui, Jipeng, Tarlé, Gregory, Zhou, Zhiming
Changing-look Active Galactic Nuclei (CL AGN) can be generally confirmed by the emergence (turn-on) or disappearance (turn-off) of broad emission lines, associated with a transient timescale (about $100\sim5000$ days) that is much shorter than predic
Externí odkaz:
http://arxiv.org/abs/2307.08289
Autor:
Donnan, Fergus R., Santisteban, Juan V. Hernández, Horne, Keith, Hu, Chen, Du, Pu, Li, Yan-Rong, Xiao, Ming, Ho, Luis C., Aceituno, Jesús, Wang, Jian-Min, Guo, Wei-Jian, Yang, Sen, Jiang, Bo-Wei, Yao, Zhu-Heng
We measure the black hole mass and investigate the accretion flow around the local ($z=0.0502$) quasar PG 1119+120. Spectroscopic monitoring with Calar Alto provides H$\beta$ lags and linewidths from which we estimate a black hole mass of $\log \left
Externí odkaz:
http://arxiv.org/abs/2302.09370
Publikováno v:
BMC Cancer, Vol 24, Iss 1, Pp 1-13 (2024)
Abstract Background As comprehensive surgical management for gastric cancer becomes increasingly specialized and standardized, the precise differentiation between ≤T1 and ≥T2 gastric cancer before endoscopic intervention holds paramount clinical
Externí odkaz:
https://doaj.org/article/0a16293fd87d4c49ab7fdbe04eb36000
Autor:
Bao, Dong-Wei, Brotherton, Michael S., Du, Pu, McLane, Jacob N., Zastrocky, T. E., Olson, Kianna A., Fang, Feng-Na, Zhai, Shuo, Huang, Zheng-Peng, Wang, Kai, Zhao, Bi-Xuan, Li, Sha-Sha, Yang, Sen, Chen, Yong-Jie, Liu, Jun-Rong, Yao, Zhu-Heng, Peng, Yue-Chang, Guo, Wei-Jian, Songsheng, Yu-Yang, Li, Yan-Rong, Jiang, Bo-Wei, Kasper, David H., Chick, William T., Nguyen, My L., Maithil, Jaya, Kobulnicky, H. A., Dale, D. A., Hand, Derek, Adelman, C., Carter, Z., Murphree, A. M., Oeur, M., Schonsberg, S., Roth, T., Winkler, Hartmut, Marziani, Paola, D'Onofrio, Mauro, Hu, Chen, Xiao, Ming, Xue, Suijian, Czerny, Bożena, Aceituno, Jesús, Ho, Luis C., Bai, Jin-Ming, Wang, Jian-Min
In this third paper of the series reporting on the reverberation mapping (RM) campaign of active galactic nuclei with asymmetric H$\beta$ emission-line profiles, we present results for 15 Palomar-Green (PG) quasars using spectra obtained between the
Externí odkaz:
http://arxiv.org/abs/2207.00297
Autor:
Chen, Yong-Jie, Zhai, Shuo, Liu, Jun-Rong, Guo, Wei-Jian, Peng, Yue-Chang, Li, Yan-Rong, SongSheng, Yu-Yang, Du, Pu, Hu, Chen, Wang, Jian-Min
We conduct a systematic search for quasars with periodic variations from the archival photometric data of the Zwicky Transient Facility by cross-matching with the quasar catalogs of the Sloan Digital Sky Survey and V{\'e}ron-Cetty \& V{\'e}ron. We fi
Externí odkaz:
http://arxiv.org/abs/2206.11497
Autor:
Evans, Michael, Guo, Yang Jian
The problem of combining the evidence concerning an unknown, contained in each of $k$ Bayesian inference bases, is discussed. This can be considered as a generalization of the problem of pooling $k$ priors to determine a consensus prior. The linear o
Externí odkaz:
http://arxiv.org/abs/2202.02922