Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Guo, Wei-Jian"'
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 $\log \left
Externí odkaz:
http://arxiv.org/abs/2302.09370
Autor:
Bao, Dong-Wei, Brotherton, Michael S., Du, Pu, McLane, Jacob N., Zastrocky, T. E., Olson, Kianna A., Fang, Feng-Na, Zhai, Shuo, Huang, Zheng-Peng, Wang, Kai, Zhao, Bi-Xuan, Li, Sha-Sha, Yang, Sen, Chen, Yong-Jie, Liu, Jun-Rong, Yao, Zhu-Heng, Peng, Yue-Chang, Guo, Wei-Jian, Songsheng, Yu-Yang, Li, Yan-Rong, Jiang, Bo-Wei, Kasper, David H., Chick, William T., Nguyen, My L., Maithil, Jaya, Kobulnicky, H. A., Dale, D. A., Hand, Derek, Adelman, C., Carter, Z., Murphree, A. M., Oeur, M., Schonsberg, S., Roth, T., Winkler, Hartmut, Marziani, Paola, D'Onofrio, Mauro, Hu, Chen, Xiao, Ming, Xue, Suijian, Czerny, Bożena, Aceituno, Jesús, Ho, Luis C., Bai, Jin-Ming, Wang, Jian-Min
In this third paper of the series reporting on the reverberation mapping (RM) campaign of active galactic nuclei with asymmetric H$\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
We compile a sample of 92 active galactic nuclei (AGNs) at z<0.75 with $gri$ photometric light curves from the archival data of the Zwicky Transient Facility and measure the accretion disk sizes via continuum reverberation mapping. We employ Monte Ca
Externí odkaz:
http://arxiv.org/abs/2201.08533
Autor:
Li, Sha-Sha, Yang, Sen, Yang, Zi-Xu, Chen, Yong-Jie, Songsheng, Yu-Yang, Liu, He-Zhen, Du, Pu, Luo, Bin, Yu, Zhe, Hu, Chen, Jiang, Bo-Wei, Bao, Dong-Wei, Guo, Wei-Jian, Zhang, Zhi-Xiang, Li, Yan-Rong, Xiao, Ming, Lu, Kai-Xing, Ho, Luis C., Bai, Jing-Min, Bian, Wei-Hao, Aceituno, Jesús, Minezaki, Takeo, Kokubo, Mitsuru, Wang, Jian-Min
Publikováno v:
2021, The Astrophysical Journal
We report the results of a multi-year spectroscopic and photometric monitoring campaign of two luminous quasars, PG~0923+201 and PG~1001+291, both located at the high-luminosity end of the broad-line region (BLR) size-luminosity relation with optical
Externí odkaz:
http://arxiv.org/abs/2106.05655
Autor:
Kara, Erin, Mehdipour, Missagh, Kriss, Gerard A., Cackett, Edward M., Arav, Nahum, Barth, Aaron J., Byun, Doyee, Brotherton, Michael S., De Rosa, Gisella, Gelbord, Jonathan, Santisteban, Juan V. Hernandez, Hu, Chen, Kaastra, Jelle, Landt, Hermine, Li, Yan-Rong, Miller, Jake A., Montano, John, Partington, Ethan, Aceituno, Jesus, Bai, Jin-Ming, Bao, Dongwei, Bentz, Misty C., Brink, Thomas G., Chelouche, Doron, Chen, Yong-Jie, Bonta, Elena Dalla, Dehghanian, Maryam, Du, Pu, Edelson, Rick, Ferland, Gary J., Ferrarese, Laura, Fian, Carina, Filippenko, Alexei V., Fischer, Travis, Goad, Michael R., Buitrago, Diego H. Gonzalez, Gorjian, Varoujan, Grier, Catherine J., Guo, Wei-Jian, Hall, Patrick B., Homayouni, Y., Horne, Keith, Ilic, Dragana, Jiang, Bo-Wei, Joner, Michael D., Kaspi, Shai, Kochanek, Christopher S., Korista, Kirk T., Kynoch, Daniel, Li, Sha-Sha, Liu, Jun-Rong, Hardy, Ian M. Mc, McLane, Jacob N., Mitchell, Jake A. J., Netzer, Hagai, Olson, Kianna A., Pogge, Richard W., Popovic, Luka C., Proga, Daniel, Storchi-Bergmann, Thaisa, Strasburger, Erika, Treu, Tommaso, Vestergaard, Marianne, Wang, Jian-Min, Ward, Martin J., Waters, Tim, Williams, Peter R., Yang, Sen, Yao, Zhu-Heng, Zastrocky, Theodora E., Zhai, Shuo, Zu, Ying
We present the first results from the ongoing, intensive, multi-wavelength monitoring program of the luminous Seyfert 1 galaxy Mrk 817. While this AGN was, in part, selected for its historically unobscured nature, we discovered that the X-ray spectru
Externí odkaz:
http://arxiv.org/abs/2105.05840