Zobrazeno 1 - 10
of 8 465
pro vyhledávání: '"Wei-jian AN"'
Publikováno v:
水下无人系统学报, Vol 30, Iss 5, Pp 558-566 (2022)
High-speed long-range unmanned undersea vehicles can expand various new combat modes. However, the power system is one of its bottlenecks. Nuclear power is an effective solution to address this problem. The miniaturization of the nuclear reactor powe
Externí odkaz:
https://doaj.org/article/96a01dc38a014739baf3fc2ec52b4773
Autor:
Guo, Wei-Jian, Pan, Zhiwei, Siudek, Małgorzata, Aguilar, Jessica Nicole, Ahlen, Steven, Bianchi, Davide, Brooks, David, Claybaugh, Todd, Dawson, Kyle, de la Macorra, Axel, Doel, Peter, Fanning, Kevin, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Honscheid, Klaus, Kehoe, Robert, Kisner, Theodore, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Manera, Marc, Meisner, Aaron, Moustakas, John, Muñoz-Gutiérrez, Andrea, Myers, Adam, Nie, Jundan, Palanque-Delabrouille, Nathalie, Poppett, Claire, Prada, Francisco, Rezaie, Mehdi, Rossi, Graziano, Sanchez, Eusebio, Schubnelll, Michael, Seo, Hee-Jong, Silber, Joseph Harry, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin Alan, Zhou, Zhimin, Zou, Hu
We present two cases of Ly$\alpha$ changing-look (CL) quasars (J1306 and J1512) along with two additional candidates (J1511 and J1602), all discovered serendipitously at $z >2$ through the Dark Energy Spectroscopic Instrument (DESI) and the Sloan Dig
Externí odkaz:
http://arxiv.org/abs/2411.01949
Autor:
Pucha, Ragadeepika, Juneau, S., Dey, Arjun, Siudek, M., Mezcua, M., Moustakas, J., BenZvi, S., Hainline, K., Hviding, R., Mao, Yao-Yuan, Alexander, D. M., Alfarsy, R., Circosta, C., Guo, Wei-Jian, Manwadkar, V., Martini, P., Weaver, B. A., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Canning, R., Claybaugh, T., Dawson, K., de la Macorra, A., Dey, Biprateep, Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Gutierrez, G., Honscheid, K., Kehoe, R., Koposov, S. E., Lambert, A., Landriau, M., Guillou, L. Le, Meisner, A., Miquel, R., Prada, F., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Seo, H., Sprayberry, D., Tarlé, G., Zou, H.
Using early data from the Dark Energy Spectroscopic Instrument (DESI) survey, we search for AGN signatures in 410,757 line-emitting galaxies. By employing the BPT emission-line ratio diagnostic diagram, we identify AGN in 75,928/296,261 ($\approx$25.
Externí odkaz:
http://arxiv.org/abs/2411.00091
Autor:
Fu, Shao-Yu, Xu, Dong, Lei, Wei-Hua, Postigo, Antonio de Ugarte, Malesani, Daniele B., Kann, David Alexander, Jakobsson, Páll, Fynbo, Johan P. U., Maiorano, Elisabetta, Rossi, Andrea, Paris, Diego, Liu, Xing, Jiang, Shuai-Qing, Lu, Tian-Hua, An, Jie, Zhu, Zi-Pei, Gao, Xing, Wei, Jian-Yan
Ultra-long gamma-ray bursts (ULGRBs) are characterized by exceptionally long-duration central engine activities, with characteristic timescales exceeding 1000 seconds. We present ground-based optical afterglow observations of the ultra-long gamma-ray
Externí odkaz:
http://arxiv.org/abs/2410.15162
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:
Fu, Shao-Yu, Xu, Dong, Lei, Wei-Hua, Postigo, Antonio de Ugarte, Kann, D. Alexander, Thöne, Christina C., Fernández, José Feliciano Agüí, Shuang-Xi, Yi, Xie, Wei, Zou, Yuan-Chuan, Liu, Xing, Jiang, Shuai-Qing, Lu, Tian-Hua, An, Jie, Zhu, Zi-Pei, Zheng, Jie, Tang, Qing-Wen, Zhao, Peng-Wei, Xin, Li-Ping, Wei, Jian-Yan
We present our optical observations and multi-wavelength analysis of the GRB\,200613A detected by \texttt{Fermi} satellite. Time-resolved spectral analysis of the prompt $\gamma$-ray emission was conducted utilizing the Bayesian block method to deter
Externí odkaz:
http://arxiv.org/abs/2407.15824
Autor:
Li, Guang-Wei, Wang, Liang, Yuan, Hai-Long, Xin, Li-Ping, Wang, Jing, Wu, Chao, Li, Hua-Li, Haerken, Hasitieer, Wang, Wei-Hua, Cai, Hong-Bo, Han, Xu-Hui, Xu, Yang, Huang, Lei, Lu, Xiao-Meng, Bai, Jian-Ying, Wang, Xiang-Yu, Dai, Zi-Gao, Liang, En-Wei, Wei, Jian-Yan
Publikováno v:
2024, The Astrophysical Journal, Vol. 971, 114
M-type stars are the ones that flare most frequently, but how big their maximum flare energy can reach is still unknown. We present 163 flares from 162 individual M2 through L1-type stars that triggered the GWAC, with flare energies ranging from $10^
Externí odkaz:
http://arxiv.org/abs/2407.08183
The origin of diffuse high-energy neutrinos from TeV to PeV energies detected by IceCube Observatory remains a mystery. In our previous work, we have shown that hadronuclear (p-p) interactions in AGN jets could be important and generate detectable ve
Externí odkaz:
http://arxiv.org/abs/2407.04195