Dense matter in strong magnetic fields

2nd International Symposium on the Modern Physics of Compact Stars and Relativistic Gravity

物理学;天文学

Sinha, Monika^1,2

Institute for Theoretical Physics, J. W. Goethe-University, D-60438 Frankfurt-Main, Germany^1

Indian Institute of Technology Rajasthan, Rajasthan, Jodhpur 342011, India^2

关键词: Compact stars;    Critical fields;    Dense matter;    Equation of state;    Internal field;    Quark matter;    Strong magnetic fields;    Surface magnetic field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/496/1/012011/pdf
DOI  :  10.1088/1742-6596/496/1/012011

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Compact stars having strong magnetic fields (magnetars) have been observationally determined to have surface magnetic fields of order of 1014-1015G, the implied internal field strength being several orders larger. We study the equation of state and composition of hypernuclear matter and quark matter - two forms of dense matter in strong magnetic fields. We find that the magnetic field has substantial influence on the properties of hypernuclear matter and quark matter for magnetic field B ≥ 1017G and B ≥ 1018G respectively. In particular the matter properties become anisotropic. Moreover, above a critical field Bcr, both hypernuclear and quark matter show instability, although the values of Bcrare different for two kinds of matter.