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arXiv 1210.3402nucl-thastro-ph.SRgr-qcnucl-ex
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中子星潮汐极化率对核对称能高密度行为的约束

Constraining the High-Density Behavior of Nuclear Symmetry Energy with the Tidal Polarizability of Neutron Stars

F. J. Fattoyev, J. Carvajal, W. G. Newton, Bao-An Li

摘要:

利用一套满足地球核实验和天体物理观测的最新约束条件的模型状态方程,以及纯中子物质状态方程的最新核多体计算,在聚结双星中正则中子星的潮汐极化率被发现是一个非常敏感的高-核对称能的密度行为是致密丰中子核子物质最不确定的性质之一。此外,它的变化小于$\pm 10%$通过改变对称的核物质和对称能量的各种性质周围的饱和密度在其各自的范围内的剩余的不确定性。

英文摘要:

Using a set of model equations of state satisfying the latest constraints from both terrestrial nuclear experiments and astrophysical observations as well as state-of-the-art nuclear many-body calculations of the pure neutron matter equation of state, the tidal polarizability of canonical neutron stars in coalescing binaries is found to be a very sensitive probe of the high-density behavior of nuclear symmetry energy which is among the most uncertain properties of dense neutron-rich nucleonic matter. Moreover, it changes less than $\pm 10%$ by varying various properties of symmetric nuclear matter and symmetry energy around the saturation density within their respective ranges of remaining uncertainty.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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