Re-examination of the Hubble Constant from the Sunyaev-Zel'dovich Effect: Implication for Cosmological Parameters
Re-examination of the Hubble Constant from the Sunyaev-Zel'dovich Effect: Implication for Cosmological Parameters
复制标题
从 Sunyaev-Zeldovich 效应重新审视哈勃常数：对宇宙学参数的影响
DOI：
10.1093/pasj/48.6.l107
复制
发表时间：
1996
影响因子：
2.3
通讯作者：
Y. Suto
中科院分区：
文献类型：
--
作者：
S. Kobayashi;S. Sasaki;Y. Suto
我们通过 Sunyaev-Zel'dovich 温度衰减和红移 $z=0.541$ 的星团 X 射线测量对哈勃常数 $H_0$ 进行了系统且全面的估计，特别注意其对密度参数 $\Omega_0$ 和宇宙学常数 $\lambda_0$ 的依赖性。 $H_0$ 的结果值与附近星系的造父变星距离得出的值基本一致。我们讨论了高$z$簇的精确SZ测量的角直径距离$d_A$与$z$图如何区分$\Omega_0$和$\lambda_0$的值。
We performed a systematic and comprehensive estimate of the Hubble constant $H_0$ via the Sunyaev-Zel'dovich temperature decrement and the X-ray measurements for clusters up to the redshift $z=0.541$, with particular attention to its dependence on the density parameter $\Omega_0$, and the cosmological constant $\lambda_0$. The resulting values of $H_0$ are largely consistent with that derived from the Cepheid distance for nearby galaxies. We discuss how the angular diameter distance $d_A$ vs. $z$ diagram from the accurate SZ measurements of high-$z$ clusters can distinguish the values of $\Omega_0$ and $\lambda_0$.