论文标题
HII Starburst Galaxy明显幅度和其他宇宙学测量的宇宙学约束
Cosmological constraints from HII starburst galaxy apparent magnitude and other cosmological measurements
论文作者
论文摘要
我们使用HII Starburst星系明显的幅度测量来限制六个宇宙学模型中的宇宙参数。对HII星系,Quasar角度大小,Baryon声学振荡峰值长度尺度和哈勃参数测量的联合分析导致对非偏变性问题参数$ω_{\ rm M_0} $和HUBBLE $ h____ H__ H__0 $的当前值的相对独立和限制性估计。这些估计值偏向于2.0 $σ$至3.4 $σ$(取决于宇宙学模型)$ H_0 $低于从本地扩展率中衡量的$ H_0 $。组合数据与暗能量是宇宙常数和平坦的空间性突出相一致的,但并不强烈排除轻度的深色能动力学或略有非平台的空间几何形状。
We use HII starburst galaxy apparent magnitude measurements to constrain cosmological parameters in six cosmological models. A joint analysis of HII galaxy, quasar angular size, baryon acoustic oscillations peak length scale, and Hubble parameter measurements result in relatively model-independent and restrictive estimates of the current values of the non-relativistic matter density parameter $Ω_{\rm m_0}$ and the Hubble constant $H_0$. These estimates favor a 2.0$σ$ to 3.4$σ$ (depending on cosmological model) lower $H_0$ than what is measured from the local expansion rate. The combined data are consistent with dark energy being a cosmological constant and with flat spatial hypersurfaces, but do not strongly rule out mild dark energy dynamics or slightly non-flat spatial geometries.