论文标题
交叉相关的黑暗警报器和星系：GWTC-3的$ H_0 $限制
Cross-correlating dark sirens and galaxies: constraints on $H_0$ from GWTC-3 of LIGO-Virgo-KAGRA
论文作者
论文摘要
We apply the cross-correlation technique to infer the Hubble constant ($H_0$) of the Universe using gravitational wave (GW) sources without electromagnetic counterparts (dark sirens) from the third GW Transient Catalog (GWTC-3) and the photometric galaxy surveys 2MPZ and WISE-SuperCOSMOS, and combine these with the bright siren measurement of $H_0$ from GW170817。 $ H_0 $的后部仅带有黑暗警报器，由于少量稳定的GW来源，因此无知。使用EM对应物的八个良好定位的深色警笛和二进制中子星GW170817，我们获得了哈勃常数$ h_0 = 75.4 _ { - 6}^{+11} $ km/s/s/mpc的值的值这种测量主要是由明亮的警笛测量驱动的，而黑暗警报器的任何约束都不是统计学意义的。将来，随着GW的更加稳定的事件，对扩展历史的限制将有所改善。
We apply the cross-correlation technique to infer the Hubble constant ($H_0$) of the Universe using gravitational wave (GW) sources without electromagnetic counterparts (dark sirens) from the third GW Transient Catalog (GWTC-3) and the photometric galaxy surveys 2MPZ and WISE-SuperCOSMOS, and combine these with the bright siren measurement of $H_0$ from GW170817. The posterior on $H_0$ with only dark sirens is uninformative due to the small number of well-localised GW sources. Using the eight well-localized dark sirens and the binary neutron star GW170817 with EM counterpart, we obtain a value of the Hubble constant $H_0= 75.4_{-6}^{+11}$ km/s/Mpc (median and 68.3$\%$ equal-tailed interval (ETI)) after marginalizing over the matter density and the GW bias parameters. This measurement is mostly driven by the bright siren measurement and any constraint from dark sirens is not statistically significant. In the future, with more well-localized GW events, the constraints on expansion history will improve.
