The Surface of Stellar Models - Now with more 3D simulations!

被引：2
|
作者：
Trampedach, Regner [1 ,2 ,3 ]
Christensen-Dalsgaard, Jorgen [1 ]
Asplund, Martin [4 ]
Stein, Robert F. [5 ]
Nordlund, Ake
机构：
[1] Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, DK-8000 Aarhus C, Denmark
[2] Univ Colorado, JILA, Boulder, CO 80309 USA
[3] NIST, Boulder, CO 80309 USA
[4] Mt Stromlo & Siding Spring Observ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia
[5] Niels Bohr Inst, Astron Observ, DK-2100 Copenhagen O, Denmark
来源：
SPACE PHOTOMETRY REVOLUTION - COROT SYMPOSIUM 3, KEPLER KASC-7 JOINT MEETING | 2015年 / 101卷
关键词：
CONVECTION SIMULATIONS; MIXING-LENGTH; IMPROVEMENTS;
D O I：
10.1051/epjconf/201510106064
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have constructed a grid of 3D hydrodynamic simulations of deep convective and line-blanketed atmospheres. We have developed a new consistent method for computing and employing T(tau) relations from these simulations, as surface boundary conditions for 1D stellar structure models. These 1D models have, in turn, had their mixing-length, alpha, calibrated against the averaged structure of each of the simulations. Both alpha and T(tau) vary significantly with T-eff and log g.
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页数：2
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