Zobrazeno 1 - 10
of 975
pro vyhledávání: '"Zhang, Q. S."'
Autor:
Zhang, Q. S.
The resistance coefficients in screen Coulomb potential of stellar plasma are evaluated in high accuracy. I have analyzed the possible singularities in the integral of scattering angle. There are possible singularities in the case of attractive poten
Externí odkaz:
http://arxiv.org/abs/1611.03115
Autor:
Zhang, Q. S.
The classical 'ballistic' overshoot models show some contradictions and are not consistence with numerical simulations and asteroseismic studies. Asteroseismic studies imply that overshoot is a weak mixing process. Diffusion model is suitable to deal
Externí odkaz:
http://arxiv.org/abs/1601.01756
Autor:
Zhang, Q. S.
We have developed a new stellar evolution and oscillation code YNEV, which calculates the structures and evolutions of stars, taking into account hydrogen and helium burning. A nonlocal turbulent convection theory and an updated overshoot mixing mode
Externí odkaz:
http://arxiv.org/abs/1406.6744
Autor:
Zhang, Q. S.
Recent 3D-simulations have shown that the turbulent kinetic flux (TKF) is significant. We discuss the effects of TKF on the size of convection zone and find that the TKF may help to solve the solar abundance problem. The solar abundance problem is th
Externí odkaz:
http://arxiv.org/abs/1404.4996
Autor:
Meng, Y., Zhang, Q. S.
The detached eclipsing binary stars with convective cores provide a good tool to investigate the convective core overshoot. It has been performed on some binary stars to restrict the classical overshoot model which simply extends the boundary of full
Externí odkaz:
http://arxiv.org/abs/1404.4411
Giant flares on soft gamma-ray repeaters that are thought to take place on magnetars release enormous energy in a short time interval. Their power can be explained by catastrophic instabilities occurring in the magnetic field configuration and the su
Externí odkaz:
http://arxiv.org/abs/1402.5824
Global dynamical correlation energies in covariant density functional theory: cranking approximation
Publikováno v:
Frontiers of Physics 9, 529 (2014)
The global dynamical correlation energies for 575 even-even nuclei with proton numbers ranging from Z=8 to Z=108 calculated with the covariant density functional theory using the PC-PK1 parametrization are presented. The dynamical correlation energie
Externí odkaz:
http://arxiv.org/abs/1305.1736
Autor:
Zhang, Q. S.
The convective overshoot mixing plays an important role in stellar structure and evolution. However, the overshoot mixing is a long standing problem. The uncertainty of the overshoot mixing is one of the most uncertain factors in stellar physics. As
Externí odkaz:
http://arxiv.org/abs/1303.0139
Autor:
Zhang, Q. S.
Helioseismic investigation has suggested to apply the turbulent convection models (TCMs) to the convective overshooting. Using the turbulent velocity in the overshooting region determined by the TCM, one can deal with the overshooting mixing as a dif
Externí odkaz:
http://arxiv.org/abs/1211.0117
Autor:
Zhang, Q. S.
The helioseimic investigation shows that the convective overshooting can penetrate $0.37H_P$ to the location where the temperature is $2.5\times10^6 K$ which is the typical temperature of the reaction $Li^7(p,\alpha)He^4$. This indicates that the ove
Externí odkaz:
http://arxiv.org/abs/1209.0977