中子星能约束暗物质吗?
Can Neutron stars constrain Dark Matter?
摘要:
我们认为,旧中子星的观测可以施加约束暗物质候选人,即使非常小的弹性或非弹性截面,和自湮没截面。我们发现,靠近银河系中心或球状星团中的老中子星可以保持一个原则上可以探测到的表面温度。由于它们的紧凑性,中子星可以有效地生成WIMP,即使WIMP到核子的截面服从当前直接暗物质搜索的限制,因此它们可以限制广泛的暗物质候选者。
英文摘要:
We argue that observations of old neutron stars can impose constraints on dark matter candidates even with very small elastic or inelastic cross section, and self-annihilation cross section. We find that old neutron stars close to the galactic center or in globular clusters can maintain a surface temperature that could in principle be detected. Due to their compactness, neutron stars can acrete WIMPs efficiently even if the WIMP-to-nucleon cross section obeys the current limits from direct dark matter searches, and therefore they could constrain a wide range of dark matter candidates.
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。