Zobrazeno 1 - 10
of 847
pro vyhledávání: '"Chen, Xuefei"'
Double helium white dwarfs (He WDs) are one type of gravitational wave source and are greatly important in the studies of binary interaction, particularly in the common envelope (CE) ejection physics. Most double He WDs with mass ratios of q~1 are fo
Externí odkaz:
http://arxiv.org/abs/2410.14151
Autor:
Kovalev, Mikhail, Li, Zhenwei, Xiong, Jianping, Matekov, Azizbek, Bo, Zhang, Chen, Xuefei, Han, Zhanwen
We present a study of the detached eclipsing binary TV~Mon using spectra from the LAMOST medium-resolution survey and ASAS-SN, CoRoT photometry. We apply multiple-epochs spectral fitting to derive RV and spectral parameters. The analysis of eclipses
Externí odkaz:
http://arxiv.org/abs/2409.09902
Autor:
Ge, Hongwei, Tout, Christopher Adam, Chen, Xuefei, Wang, Song, Xiong, Jianping, Zhang, Lifu, Liu, Qingzhong, Han, Zhanwen
Binary stars are responsible for many unusual astrophysical phenomena, including some important explosive cosmic events. The stability criteria for rapid mass transfer and common-envelope evolution are fundamental to binary star evolution. They deter
Externí odkaz:
http://arxiv.org/abs/2408.16350
Autor:
Rao, JiaRui, Chen, HaiLiang, Xiong, JianPing, Wang, LuQian, Guo, YanJun, Li, JiaJia, Liu, Chao, Han, ZhanWen, Chen, XueFei
Publikováno v:
The Astronomical Journal, 168:20 (17pp), 2024 July
The measurement of atmospheric parameters is fundamental for scientific research using stellar spectra. The Chinese Space Station Telescope (CSST), scheduled to be launched in 2024, will provide researchers with hundreds of millions of slitless spect
Externí odkaz:
http://arxiv.org/abs/2408.10803
Publikováno v:
The Astrophysical Journal, Volume 974, Issue 1, id.13, 13 pp. (2024) The Astrophysical Journal, Volume 974, Issue 1, id.13, 13 pp
Type Ia Supernovae (SNe Ia) discovered at redshift $z\lesssim2.5$ are presumed to be produced from Population (Pop) I/II stars. {In this work, we investigate the production of SNe Ia from Pop III binaries in the cosmological framework. We derive the
Externí odkaz:
http://arxiv.org/abs/2407.19357
The unstable mass transfer situation in binary systems will asymptotically cause the adiabatic expansion of the donor star and finally lead to the common envelope phase. This process could happen in helium binary systems once the helium donor star fi
Externí odkaz:
http://arxiv.org/abs/2406.13146
Publikováno v:
A&A 689, A246 (2024)
The properties of H-rich, type II-plateau supernova (SN II-P) progenitors remain uncertain, and this is primarily due to the complexities associated with red supergiant (RSG) wind-mass loss. Recent studies have suggested that the interaction of the e
Externí odkaz:
http://arxiv.org/abs/2406.02684
Autor:
Cheng, Qiyuan, XIong, Jianping, Ding, Xu, Ji, Kaifan, Li, Jiao, Liu, Chao, Li, Jiangdan, Luo, Jingxiao, Lyu, Xin, Han, Zhanwen, Chen, Xuefei
Low mass-ratio (q) contact binary systems are progenitors of stellar mergers such as blue straggles (BS) or fast-rotating FK Com stars. In this study, we present the first light curve analysis of two newly identified low mass-ratio contact binary sys
Externí odkaz:
http://arxiv.org/abs/2405.19841
Runaway stars are OB-type stars ejected from their birthplace with large peculiar velocities. The leading hypothesis addressed in their formation includes the supernova ejection mechanism and the dynamic ejection scenario. Identification of runaway p
Externí odkaz:
http://arxiv.org/abs/2405.04750
Autor:
Luo, Changqing, Li, Jiao, Zheng, Chuanjie, Liu, Dongdong, Li, Zhenwei, Luo, Yangping, Nemeth, Peter, Zhang, Bo, Xiong, Jianping, Wang, Bo, Wang, Song, Bai, Yu, Li, Qingzheng, Wang, Pei, Han, Zhanwen, Liu, Jifeng, Huang, Yang, Chen, Xuefei, Liu, Chao
Although supernovae is a well-known endpoint of an accreting white dwarf, alternative theoretical possibilities has been discussing broadly, such as the accretion-induced collapse (AIC) event as the endpoint of oxygen-neon (ONe) white dwarfs, either
Externí odkaz:
http://arxiv.org/abs/2404.04835