Zobrazeno 1 - 10
of 310
pro vyhledávání: '"Deng, Licai"'
We obtain the largest catalog of multi-mode $\delta$ Sct stars in the northern sky to date using the Zwicky Transient Facility (ZTF) Data Release 20 (DR20). The catalog includes 2254 objects, of which 2181 are new to our study. Among these multi-mode
Externí odkaz:
http://arxiv.org/abs/2405.15761
Autor:
Wang, Li, Deng, Licai, Pang, Xiaoying, Wang, Long, de Grijs, Richard, Milone, Antonino P., Li, Chengyuan
The presence of young stellar populations in the Large Magellanic Cloud cluster NGC 1783 has caught significant attention, with suggestions ranging from it being a genuine secondary stellar generation to a population of blue straggler stars or simply
Externí odkaz:
http://arxiv.org/abs/2404.08047
Classical Cepheids (CCs) are excellent tracers for understanding the structure of the Milky Way disk. The latest Gaia Data Release 3 provides a large number of line-of-sight velocity information for Galactic CCs, offering an opportunity for studying
Externí odkaz:
http://arxiv.org/abs/2402.15782
RR Lyrae (RR Lyr) stars are a well-known and useful distance indicator for old stellar populations such as globular clusters and dwarf galaxies. Fundamental-mode RR Lyr (RRab) stars are commonly used to measure distances, and the accuracy of the dete
Externí odkaz:
http://arxiv.org/abs/2308.02169
Publikováno v:
Nature Astronomy, 2023
RR Lyrae stars are one of the primary distance indicators for old stellar populations such as globular clusters, dwarf galaxies and galaxies. Typically, fundamental-mode RR Lyr stars are used for distance measurements, and their accuracy is strongly
Externí odkaz:
http://arxiv.org/abs/2306.10708
Autor:
Lin, Weili, Wang, Xiaofeng, Yan, Lin, Gal-Yam, Avishay, Mo, Jun, Brink, Thomas G., Filippenko, Alexei V., Xiang, Danfeng, Lunnan, Ragnhild, Zheng, Weikang, Brown, Peter, Kasliwal, Mansi, Fremling, Christoffer, Blagorodnova, Nadejda, Mirzaqulov, Davron, Ehgamberdiev, Shuhrat A., Lin, Han, Zhang, Kaicheng, Zhang, Jicheng, Yan, Shengyu, Zhang, Jujia, Chen, Zhihao, Deng, Licai, Wang, Kun, Xiao, Lin, Wang, Lingjun
Superluminous supernovae are among the most energetic stellar explosions in the Universe, but their energy sources remain an open question. Here we present long-term observations of one of the closest examples of the hydrogen-poor subclass (SLSNe-I),
Externí odkaz:
http://arxiv.org/abs/2304.10416
Autor:
Yan, Hongliang, Li, Haining, Wang, Song, Zong, Weikai, Yuan, Haibo, Xiang, Maosheng, Huang, Yang, Xie, Jiwei, Dong, Subo, Yuan, Hailong, Bi, Shaolan, Chu, Yaoquan, Cui, Xiangqun, Deng, Licai, Fu, Jianning, Han, Zhanwen, Hou, Jinliang, Li, Guoping, Liu, Chao, Liu, Jifeng, Liu, Xiaowei, Luo, Ali, Shi, Jianrong, Wu, Xuebing, Zhang, Haotong, Zhao, Gang, Zhao, Yongheng
Publikováno v:
The Innovation. 3(2),100224 (2022)
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), also known as the Guoshoujing Telescope, is a major national scientific facility for astronomical research located in Xinglong, China. Beginning with a pilot survey in 2011, LAMO
Externí odkaz:
http://arxiv.org/abs/2203.14300
The development of large-scale time-domain surveys provides an opportunity to study the physical properties as well as the evolutionary scenario of B-type subdwarfs (sdB) and M-type dwarfs (dM). Here, we obtained 33 sdB+dM eclipsing binaries based on
Externí odkaz:
http://arxiv.org/abs/2201.03721
The behavior of the shock wave in the atmosphere of the non-fundamental mode RR Lyrae pulsator remains a mystery. In this work, we firstly report a blueshifted Mg triplet emission in continuous spectroscopic observations for a non-Blazhko RRc pulsato
Externí odkaz:
http://arxiv.org/abs/2109.07486
Angular momentum is a key property regulating star formation and evolution. However, the physics driving the distribution of the stellar rotation rates of early-type main-sequence stars is as yet poorly understood. Using our catalog of 40,034 early-t
Externí odkaz:
http://arxiv.org/abs/2108.01213