Surface Electric Field of Bare Strange Stars

Abstract

The surface electric characteristics of bare strange stars are investigated with the inclusion of boundary effects. The thickness of the electron layer where pairs can be spontaneously created is calculated as a function of the bag parameters. We find that previous estimates are representative for bag parameters within a rather wide range, and therefore our results favor the thermal radiation mechanism of bare strange stars advanced by V. V. Usov.

Comments: 5 pages, revised version for A&A (accepted), or at http://vega.bac.pku.edu.cn/~rxxu/publications/index_P.htm