论文标题
搜索Ligo-Virgo中间质量黑洞合并候选者中的矢量玻色子星星合并
Searching for vector boson-star mergers within LIGO-Virgo intermediate-mass black-hole merger candidates
论文作者
论文摘要
我们提出了第一次系统地搜索高级Ligo和处女座事件中的外来紧凑型合并。 We compare the short gravitational-wave signals GW190521, GW190426$\_$190642, GW200220$\_$061928 and the trigger 200114$\_$020818 (or S200114f) to a new catalogue of 759 numerical simulations of head-on mergers of horizonless exotic compact objects被称为proca恒星，被解释为（模糊）暗物质的自我磨碎的块，由超轻（矢量）骨气粒子产生。对于GW190426，Proca-Star合并假设在Black Hole合并方面得到了强烈拒绝，被GW200220弱拒绝，并被GW190521和S200114F倾斜。 GW190521和GW200220产生高度一致的玻色子质量，为$μ_ {\ rm b} = 8.69^{+0.61} _ { - 0.75} \ 0.75} \ times10^{ - 13} $ ev和$μ_ {\ rm b} = \ rm b} = 9.13^{+1.18} _ { - 1.30} \ times10^{ - 13} $ ev在$ 90 \％$可信级别。我们对这些事件背后的紧凑型二进制文件进行初步人口研究。除非（包括）S200114F作为一个真实事件，而忽略了跨事件的玻色子质量一致性，我们估计一小部分Proca-Star合并为$ζ= 0.27^{+0.43} _ { - 0.25} _ { - 0.25} \（0.39^{+0.38} {+0.38} _ _ _ {-0.33} _ { - 0.33}）$。我们在此类估计中讨论了跨事件跨事件的影响。我们的结果将GW190521作为Proca-Star合并候选人，并为考虑外来紧凑型物体的人群研究铺平了道路。
We present the first systematic search for exotic compact mergers in Advanced LIGO and Virgo events. We compare the short gravitational-wave signals GW190521, GW190426$\_$190642, GW200220$\_$061928 and the trigger 200114$\_$020818 (or S200114f) to a new catalogue of 759 numerical simulations of head-on mergers of horizonless exotic compact objects known as Proca stars, interpreted as self-gravitating lumps of (fuzzy) dark matter sourced by an ultralight (vector) bosonic particle. The Proca-star merger hypothesis is strongly rejected with respect to the black hole merger one by GW190426, weakly rejected by GW200220 and weakly favoured by GW190521 and S200114f. GW190521 and GW200220 yield highly consistent boson masses of $μ_{\rm B} = 8.69^{+0.61}_{-0.75}\times10^{-13}$ eV and $μ_{\rm B} = 9.13^{+1.18}_{-1.30}\times10^{-13}$ eV at the $90\%$ credible level. We conduct a preliminary population study of the compact binaries behind these events. Excluding (including) S200114f as a real event, and ignoring boson-mass consistencies across events, we estimate a fraction of Proca-star mergers of $ζ= 0.27^{+0.43}_{-0.25} \ (0.39^{+0.38}_{-0.33})$. We discuss the impact of boson-mass consistency across events in such estimates. Our results maintain GW190521 as a Proca-star merger candidate and pave the way towards population studies considering exotic compact objects.
