论文标题
当地宇宙中的重力：使用cosmicflows-4的密度和速度场
Gravity in the Local Universe : density and velocity fields using CosmicFlows-4
论文作者
论文摘要
本文公开释放了Z = 0.8以下的本地宇宙重力场的三维重建，这些重建使用Cosmicflows-4目录56,000星系距离及其1,008型IA型超新星距离的子样本进行了计算。本文还使用径向特征速度的成对相关性f Sigma8 = 0.38 = 0.38（+/- 0.04）（未分组的CF4），f Sigma8 = 0.36（+/- 0.05）（分组CF4），F Sigma8 = 0.30（+0.30（+/- 0.06）（+/- 0.06）（AIA）（aia）（aia aia aia）（aia）（aia aia aia）（aia aia aia aia ai，距离观察者300 MPC的230 +/- 136 km S-1的宇宙。 The exploration of 10,000 reconstructions gives that the distances delivered by the Cosmicflows-4 catalog are compatible with a Hubble constant of H0 = 74.5 +/- 0.1 (grouped CF4), H0 = 75.0 +/- 0.35 (ungrouped CF4) and H0 = 75.5 +/- 0.95 (CF4 SNIa subsample).
This article publicly releases three-dimensional reconstructions of the local Universe gravitational field below z=0.8 that were computed using the CosmicFlows-4 catalog of 56,000 galaxy distances and its sub-sample of 1,008 type Ia supernovae distances. The article also provides measurements of the growth rate of structure using the pairwise correlation of radial peculiar velocities f sigma8 = 0.38(+/-0.04) (ungrouped CF4), f sigma8 = 0.36(+/-0.05) (grouped CF4), f sigma8 = 0.30(+/-0.06) (SNIa) and of the bulk flow in the 3D reconstructed Local Universe of 230 +/- 136 km s-1 at 300 Mpc of distance from the observer. The exploration of 10,000 reconstructions gives that the distances delivered by the Cosmicflows-4 catalog are compatible with a Hubble constant of H0 = 74.5 +/- 0.1 (grouped CF4), H0 = 75.0 +/- 0.35 (ungrouped CF4) and H0 = 75.5 +/- 0.95 (CF4 SNIa subsample).
