中文

通过Sunyaev-Zel'dovich效应重新估算哈勃常数:对宇宙参数的含义

天体物理学 2015-06-24 v1

摘要

我们系统、全面地估计了通过Sunyaev-Zel'dovich温度递减和X射线测量得到的哈勃常数H0H_0,针对最高红移z=0.541z=0.541的星团,特别关注其对密度参数Ω0\Omega_0和宇宙常数λ0\lambda_0的依赖性。得到的H0H_0值与从近距离星系的星光距离计中得出的值大体一致。我们讨论了如何通过对高z z 星团的准确SZ测量得到的angulardiameterdistance angular diameter distance dAd_A vs. zz图来区分Ω0\Omega_0λ0\lambda_0的值。

关键词

引用

@article{arxiv.astro-ph/9610080,
  title  = {Re-examination of the Hubble Constant from the Sunyaev-Zel'dovich Effect: Implication for Cosmological Parameters},
  author = {Shiho Kobayashi and Shin Sasaki and Yasushi Suto},
  journal= {arXiv preprint arXiv:astro-ph/9610080},
  year   = {2015}
}

备注

11 pages. 3 postscript figures included. Publications of the Astronomical Society of Japan (Letters), 1996, vol.48, No.6, in press