论文标题
从星际中等温度对光原始黑洞的限制
A constraint on light primordial black holes from the interstellar medium temperature
论文作者
论文摘要
原始黑洞是可行的暗物质候选者。他们通过霍金蒸发而腐烂。鹰辐射的能量颗粒与星际气体相互作用，将其能量作为热和电离。对于足够高的鹰温度，黑洞产生的快速电子将大量能量作为通过库仑相互作用的热量。使用矮星系狮子座，我们将上限放在原始黑洞暗物质的比例上。对于$ m <5 \ times 10^{ - 17} m_ \ odot $，我们的界限比其他界限更具竞争力或更强。
Primordial black holes are a viable dark matter candidate. They decay via Hawking evaporation. Energetic particles from the Hawking radiation interact with interstellar gas, depositing their energy as heat and ionization. For a sufficiently high Hawking temperature, fast electrons produced by black holes deposit a substantial fraction of energy as heat through the Coulomb interaction. Using the dwarf galaxy Leo T, we place an upper bound on the fraction of primordial black hole dark matter. For $M < 5 \times 10^{-17} M_\odot$, our bound is competitive with or stronger than other bounds.
