Small radii of neutron stars as an indication of novel in-medium effects
Small radii of neutron stars as an indication of novel in-medium effects
复制标题
中子星的小半径表明了新的介质效应
DOI:
10.1140/epja/i2015-15119-7
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发表时间:
2015-09
期刊:
影响因子:
--
通讯作者:
F.J. Fattoyev
中科院分区:
文献类型:
--
作者:
Wei-Zhou Jiang;Bao-An Li;F.J. Fattoyev
At present, neutron star radii from both observations and model predictions remain very uncertain. Whereas different models can predict a wide range of neutron star radii, it is not possible for most models to predict radii that are smaller than about 10km, thus if such small radii are established in the future they will be very difficult to reconcile with model estimates. By invoking a new term in the equation of state that enhances the energy density, but leaves the pressure unchanged we simulate the current uncertainty in the neutron star radii. This new term can be possibly due to the exchange of the weakly interacting light U-boson with appropriate in-medium parameters, which does not compromise the success of the conventional nuclear models. The validity of this new scheme will be tested eventually by more precise measurements of neutron star radii.
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影响因子:
3.1
作者:
Bao-Jun Cai;F. J. Fattoyev;Bao-An Li;W. Newton
通讯作者:
Bao-Jun Cai;F. J. Fattoyev;Bao-An Li;W. Newton
影响因子:
4.4
作者:
Jiang, Wei-Zhou;Chen, Lie-Wen;Li, Bao-An
通讯作者:
Li, Bao-An
影响因子:
8.6
作者:
Dehua Wen;Bao-An Li;Lie-Wen Chen
通讯作者:
Dehua Wen;Bao-An Li;Lie-Wen Chen
DOI:
10.1103/physrevc.85.025801
发表时间:
2011-10
期刊:
Physical Review C (nuclear Physics)
影响因子:
--
作者:
Wen, De-Hua;Newton, W. G.;Li, Bao-An
通讯作者:
Li, Bao-An
影响因子:
5
作者:
P. Fayet
通讯作者:
P. Fayet