Zobrazeno 1 - 10
of 484
pro vyhledávání: '"Tout, Christopher"'
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
We present the observational mass-radius (M-R) relation for a sample of 47 magnetized white dwarfs (WDs) with the magnetic field strength (B) ranging from 1 to 773 MG, identified from the SDSS data release 7 (DR7). We derive their effective temperatu
Externí odkaz:
http://arxiv.org/abs/2403.13888
We extend our model of magnetic braking (MB), driven by an $\alpha-\Omega$ dynamo mechanism, from fully convective M-dwarfs (FCMDs) to explain the surface and internal spin $P_\mathrm{spin}$ evolution of partly convective dwarfs (PCDs) starting from
Externí odkaz:
http://arxiv.org/abs/2402.05912
Period bouncers are cataclysmic variables (CVs) that have evolved past their orbital period minimum. The strong disagreement between theory and observations of the relative fraction of period bouncers is a severe shortcoming in the understanding of C
Externí odkaz:
http://arxiv.org/abs/2401.14389
Accreting main-sequence stars expand significantly when the mass accretion timescale is much shorter than their thermal timescales. This occurs during mass transfer from an evolved giant star onto a main-sequence companion in a binary system, and is
Externí odkaz:
http://arxiv.org/abs/2401.09570
We present the results of the study of cataclysmic variables (CVs) and AM Canum Venaticorum (AM CVn) stars with our double dynamo (DD) formalism of angular momentum loss (AML) by magnetic braking (MB). We show that (1) our MB model reproduces the per
Externí odkaz:
http://arxiv.org/abs/2401.04090
Autor:
Ge, Hongwei, Tout, Christopher A, Webbink, Ronald F, Chen, Xuefei, Sarkar, Arnab, Li, Jiao, Li, Zhenwei, Zhang, Lifu, Han, Zhanwen
The common envelope evolution (CEE) is vital in forming short orbital period compact binaries. It covers many objects, such as double compact merging binaries, type Ia supernovae progenitors, binary pulsars, and X-ray binaries. Knowledge about the co
Externí odkaz:
http://arxiv.org/abs/2311.17304
We extend a magnetic braking (MB) model, which has been used earlier to address the evolution of cataclysmic variables, to address the spin period $P_\mathrm{spin}$ evolution of fully convective M dwarf (FCMD) stars. The MB mechanism is an $\alpha-\O
Externí odkaz:
http://arxiv.org/abs/2309.06893
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 522, Issue 1, June 2023, Pages 1140-1154
We use the rapid binary stellar evolution code BINARY_C to estimate the rate of merging neutron stars with numerous combinations of envelope ejection efficiency and natal kick dispersion. We find a peak in the local rate of merging neutron stars arou
Externí odkaz:
http://arxiv.org/abs/2304.01949
Autor:
Ge, Hongwei, Tout, Christopher A., Chen, Xuefei, Sarkar, Arnab, Walton, Dominic J., Han, Zhanwen
The stability criteria of rapid mass transfer and common envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio and orbital distribution of many important systems, such as X-ray binaries, Type Ia supernovae a
Externí odkaz:
http://arxiv.org/abs/2302.00183