论文标题
黑物质 - 巴里昂第五力的天体物理观察
Astrophysical Observations of a Dark Matter-Baryon Fifth Force
论文作者
论文摘要
我们考虑了巴属与暗物质（DM）之间有吸引力的远程Yukawa相互作用的影响，尤其集中在中子恒星（NSS）的温度和脉冲星时间定时观察上。我们表明，这种第五力的强度比重力大于数十公里（对应于小于$ 10^{ - 11} \ text {ev} $）的重力强度，可以极大地增强深色物质动力动力学的热量动力动力学，捕获，捕获和脉搏脉动的时间段相对于Gravity的短暂范围以及相对范围的差异。使用最冷的观察到的NS和脉冲星时阵列（PTA）数据，我们在DM质量范围内对第五力强度的限制限制了跨越光线暗物质，以订购太阳能质量复合材料DM对象。我们还通过将Bullet簇限制与DM自我相互作用和弱等效性测试限制在重型互动中的限制相结合，来考虑间接限制。我们发现，除非考虑DM子组件，否则间接限制的组合限制比动力学加热和PTA极限要强。
We consider the effects of an attractive, long-range Yukawa interaction between baryons and dark matter (DM), focusing in particular on temperature and pulsar timing observations of neutron stars (NSs). We show that such a fifth force, with strength modestly stronger than gravity at ranges greater than tens of kilometers (corresponding to mediator masses less than $10^{-11} \text{eV}$), can dramatically enhance dark matter kinetic heating, capture, and pulsar timing Doppler shifts relative to gravity plus short range interactions alone. Using the coldest observed NS and pulsar timing array (PTA) data, we derive limits on fifth force strength over a DM mass range spanning light dark matter up to order solar mass composite DM objects. We also consider an indirect limit by combining bullet cluster limits on the DM self-interaction with weak equivalence principle test limits on baryonic self-interactions. We find the combined indirect limits are moderately stronger than kinetic heating and PTA limits, except when considering a DM subcomponent.
