%A Luo Zhi-Quan(罗志全) and Liu Men-Quan(刘门全) %T Re-research on the size of proto-neutron star in core-collapse supernova %0 Journal Article %D 2008 %J Chin. Phys. B %R 10.1088/1674-1056/17/3/066 %P 1147-1151 %V 17 %N 3 %U {https://cpb.iphy.ac.cn/CN/abstract/article_109712.shtml} %8 2008-03-04 %X The electron capture timescale may be shorter than hydrodynamic timescale in inner iron core of core-collapse supernova according to a recent new idea. Based on the new idea, this paper carries out a numerical simulation on supernova explosion for the progenitor model Ws15M$_{\odot}$. The numerical result shows that the size of proto-neutron star has a significant change (decrease about 20%), which may affects the propagation of the shock wave and the final explosion energy.