Zobrazeno 1 - 10
of 484
pro vyhledávání: '"Tian Haijun"'
Autor:
Wang, Fan, Fang, Min, Fu, Xiaoting, Chen, Yang, Li, Lu, Pang, Xiaoying, Li, Zhongmu, Tang, Jing, Cui, Wenyuan, Tian, Haijun, Liu, Chao
Recent literature reports a color deviation between observed Gaia color-magnitude diagrams (CMDs) and theoretical model isochrone predictions, particularly in the very low-mass regime. To assess its impact on cluster age determination via isochrone f
Externí odkaz:
http://arxiv.org/abs/2411.12987
Autor:
Chen, Jie, Gruber, Susan, Lee, Hana, Chu, Haitao, Lee, Shiowjen, Tian, Haijun, Wang, Yan, He, Weili, Jemielita, Thomas, Song, Yang, Tamura, Roy, Tian, Lu, Zhao, Yihua, Chen, Yong, van der Laan, Mark, Nie, Lei
Real-world data (RWD) and real-world evidence (RWE) have been increasingly used in medical product development and regulatory decision-making, especially for rare diseases. After outlining the challenges and possible strategies to address the challen
Externí odkaz:
http://arxiv.org/abs/2410.06586
Autor:
Chen, Jie, Nie, Lei, Lee, Shiowjen, Chu, Haitao, Tian, Haijun, Wang, Yan, He, Weili, Jemielita, Thomas, Gruber, Susan, Song, Yang, Tamura, Roy, Tian, Lu, Zhao, Yihua, Chen, Yong, van der Laan, Mark, Lee, Hana
Developing drugs for rare diseases presents unique challenges from a statistical perspective. These challenges may include slowly progressive diseases with unmet medical needs, poorly understood natural history, small population size, diversified phe
Externí odkaz:
http://arxiv.org/abs/2410.06585
Autor:
Lin, Jun, Guo, Rui, Bird, Sarah A., Tian, Haijun, Liu, Chao, Flynn, Chris, Liu, Gaochao, Cui, Sheng
We select 1,052,469 (754,635) thin disk stars from {\it Gaia} eDR3 and LAMOST DR7 in the range of Galactocentric radius $R$ (guiding center radius $R_\mathrm{g}$) from 8 to 11\,kpc to investigate the asymmetries between the North and South of the dis
Externí odkaz:
http://arxiv.org/abs/2401.04688
Estimating precise metallicity of M dwarfs is a well-known difficult problem due to their complex spectra. In this work, we empirically calibrate the metallicity using wide binaries with a F, G, or K dwarf and a M dwarf companion. With 1308 FGK+M wid
Externí odkaz:
http://arxiv.org/abs/2312.12827
Autor:
Zhang, Shan, Liu, Gaochao, Huang, Yang, Lv, Zongfei, Bird, Sarah Ann, Chen, Bingqiu, Zhang, Huawei, Beers, Timothy C., Li, Xinyi, Tian, Haijun, Zhang, Peng
We use 3653 (2661 RRab, 992 RRc) RR Lyrae stars (RRLs) with 7D (3D position, 3D velocity, and metallicity) information selected from SDSS, LAMOST, and Gaia EDR3, and divide the sample into two Oosterhoff groups (Oo I and Oo II) according to their amp
Externí odkaz:
http://arxiv.org/abs/2309.02828
Based on a large spectroscopic sample of $\sim$ 4,300 RR Lyrae stars with metallicity, systemic radial velocity and distance measurements, we present a detailed analysis of the chemical and kinematic properties of the Galactic halo. Using this sample
Externí odkaz:
http://arxiv.org/abs/2209.07885
Autor:
Nie, Jundan, Tian, Hao, Li, Jing, Liu, Chao, Smith, Martin C., Tang, Baitian, Carballo-Bello, Julio A., Ma, Jun, Tian, Haijun, Wang, Jiaxin, Wu, Zhenyu, Peng, Xiyan, Wang, Jiali, Zhang, Tianmeng, Zhou, Xu, Zhou, Zhimin, Zou, Hu
Whiting 1 is a faint and young globular cluster in the halo of the Milky Way, and was suggested to have originated in the Sagittarius spherical dwarf galaxy (Sgr dSph). In this paper, we use the deep DESI Legacy Imaging Surveys to explore tentative s
Externí odkaz:
http://arxiv.org/abs/2204.11064
Publikováno v:
In Applied Materials Today October 2024 40
Publikováno v:
In Optics and Lasers in Engineering September 2024 180