Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Sun, Weijia"'
Autor:
Sun, Weijia, Chiappini, Cristina
Publikováno v:
A&A 689, A141 (2024)
Stellar rotation significantly shapes the evolution of massive stars, yet the interplay of mass and metallicity remains elusive, limiting our capacity to construct accurate stellar evolution models and to better estimate the impact of rotation in che
Externí odkaz:
http://arxiv.org/abs/2406.18268
Autor:
Sun, Weijia
Stellar population synthesis (SPS) is essential for understanding galaxy formation and evolution. However, the recent discovery of rotation-driven phenomena in star clusters warrants a review of uncertainties in SPS models caused by overlooked factor
Externí odkaz:
http://arxiv.org/abs/2401.02836
Autor:
He, Chenyu, Li, Chengyuan, Sun, Weijia, de Grijs, Richard, Li, Lu, Zhong, Jing, Qin, Songmei, Chen, Li, Wang, Li, Tang, Baitian, Shao, Zhengyi, Xu, Cheng
The split main sequences found in the colour-magnitude diagrams of star clusters younger than ~600 Myr are suggested to be caused by the dichotomy of stellar rotation rates of upper main-sequence stars. Tidal interactions have been suggested as a pos
Externí odkaz:
http://arxiv.org/abs/2309.01975
Autor:
He, Chenyu, Sun, Weijia, Li, Chengyuan, Li, Lu, Shao, Zhengyi, Zhong, Jing, Chen, Li, de Grijs, Richard, Tang, Baitian, Qin, Songmei, Randriamanakoto, Zara
In addition to the extended main-sequence turnoffs widely found in young and intermediate-age (~ 600 Myr-2 Gyr-old) star clusters, some younger clusters even exhibit split main sequences (MSs). Different stellar rotation rates are proposed to account
Externí odkaz:
http://arxiv.org/abs/2208.10843
Autor:
Zhang, Jinding, Kang, Jinzheng, Zhang, Kai, Zhang, Liming, Liu, Piyang, Liu, Xingyu, Sun, Weijia, Wang, Guangyao
Publikováno v:
In Geoenergy Science and Engineering September 2024 240
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
We derive stellar parameters and abundances (`stellar labels') of 40,034 late-B and A-type main-sequence stars extracted from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope Medium Resolution Survey (LAMOST--MRS). The primary selection
Externí odkaz:
http://arxiv.org/abs/2108.01212
Autor:
Wang, Linlin, Liang, Ping, Pan, Pingshan, Su, Jiasun, Qin, Jiayi, Chen, Zhaoxia, Huang, Dongbing, Sun, Weijia, Song, Pengshu, Wei, Hongwei
Publikováno v:
In European Journal of Obstetrics & Gynecology and Reproductive Biology June 2024 297:91-95
Autor:
Duan, Xiao-Wei, Chen, Xiaodian, Sun, Weijia, Deng, Licai, Zhang, Huawei, Yang, Fan, Liu, Chao
Publikováno v:
ApJ 918 3 (2021)
Hydrogen emissions of RR Lyrae variables are the imprints of shock waves traveling through their atmospheres. We develop a pattern recognition algorithm, which is then applied to single-epoch spectra of SDSS and LAMOST. These two spectroscopic survey
Externí odkaz:
http://arxiv.org/abs/2107.13573