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M2-9

Model Description:

\chi=\frac{\dot{M}_{AGB}v_{AGB}}{\dot{M}_j v_j}

where \dot{M}_{AGB}=10^{-6}M_{\odot}/yr, \dot{M}_j, \chi and v_j are varibles.

The jet is bipolar jet and has open angle of only 10^{\circ} so the solid angle is only \omega=0.015\times 4 \pi. I calculate v_{AGB} with given \dot{M}_j, \chi and v_j.

The outflow density of the jet is \rho_j=\dot{M}_j/(\omega R_{com}^2 v_j).

The base grid is 80\times80\times160 and I added 3 levels of AMR. AGB star has radius of 4 AU and 1.4 solar mass (as in the paper by Garcia-Arredondo and Frank 2004) and the companion has 0.6 solar mass and radius of 2 AU.

This is the case of strong jet, which is,

\chi=\frac{\dot{M}_{AGB}v_{AGB}}{\dot{M_j}v_j}=0.625

where v_j=400km/s, \dot{M}_j=10^{-7} M_{\odot}/yr so v_{AGB}=25km/s which is just the escape velocity of the AGB star.

m29.gif

Below is the weak jet case.

\chi=\frac{\dot{M}_{AGB}v_{AGB}}{\dot{M_j}v_j}=5

where v_j=200km/s, \dot{M}_j=2.5\times10^{-8} M_{\odot}/yr so v_{AGB}=25km/s unchanged.

low.gif

Posted: 9 years ago (Updated: 9 years ago)
Author: Zhuo Chen
Categories: (none)

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m29.gif (3.8 MB) - added by Zhuo Chen 9 years ago.
low.gif (9.5 MB) - added by Zhuo Chen 9 years ago.
low0060.png (238.1 KB) - added by Zhuo Chen 9 years ago.
contour0020.png (274.4 KB) - added by Zhuo Chen 9 years ago.

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M2-9

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