Strange stars with different quark mass scalings

Details Strange stars with different quark mass scalings Strange stars with different quark mass scalings

2009-05-21

arxiv.org/abs/0905.3439v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

5 pages, 6 figures, 1 table. accepted by MN

Scientific paper

10.1111/j.1365-2966.2009.16091.x

We investigate the stability of strange quark matter and the properties of the corresponding strange stars, within a wide range of quark mass scaling. The calculation shows that the resulting maximum mass always lies between 1.5 solor mass and 1.8 solor mass for all the scalings chosen here. Strange star sequences with a linear scaling would support less gravitational mass, and a change (increase or decrease) of the scaling around the linear scaling would lead to a larger maximum mass. Radii invariably decrease with the mass scaling. Then the larger the scaling, the faster the star might spin. In addition, the variation of the scaling would cause an order of magnitude change of the strong electric field on quark surface, which is essential to support possible crusts of strange stars against gravity and may then have some astrophysical implications.

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