The Strange Star Surface: A Crust with Nuggets

Details The Strange Star Surface: A Crust with Nuggets The Strange Star Surface: A Crust with Nuggets

2005-07-25

arxiv.org/abs/nucl-th/0507055v1

Phys.Rev.Lett. 96 (2006) 041101

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.96.041101

We reexamine the surface composition of strange stars. Strange quark stars are hypothetical compact stars which could exist if strange quark matter was absolutely stable. It is widely accepted that they are characterized by an enormous density gradient ($~10^{26}$ g/cm$^4$) and large electric fields at surface. By investigating the possibility of realizing a heterogeneous crust, comprised of nuggets of strange quark matter embedded in an uniform electron background, we find that the strange star surface has a much reduced density gradient and negligible electric field. We comment on how our findings will impact various proposed observable signatures for strange stars.

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