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| Paper: |
Common Envelope and the Binding Energy Consideration |
| Volume: |
482, 10th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
185 |
| Authors: |
Irawati, P.; Mahasena, P. |
| Abstract: |
We report the results of our study on the common-envelope phase of the
cataclysmic variables. We are investigating the role of additional
energies, such as recombination energy and internal energy, in expelling
the envelope of the primary star. In this work, we use the TWIN stellar
evolution code which can evolve both stars in binary simultaneously. We
analysed the energies involved by considering the binding energy of the
core at the onset of the common envelope phase. The core of the primary
is calculated using the hydrogen-exhausted layer with 10% hydrogen
fraction. Our preliminary result shows that the internal energy plays a
significant role while the recombination energy has only a small
contribution to the energy budget of the cataclysmic variable evolution. |
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