論文

査読有り
1999年

Distance-redshift relation in an isotropic inhomogeneous universe: Spherically symmetric dust-shell universe. II

Physical Review D - Particles, Fields, Gravitation and Cosmology
  • Norimasa Sugiura
  • ,
  • Ken-ichi Nakao
  • ,
  • Tomohiro Harada

60
10
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevD.60.103508

The relation between the angular diameter distance and redshift (Formula presented) relation) in a spherically symmetric dust-shell universe is studied. We discover that the relation agrees with that of an appropriate Friedmann-Lemaître (FL) model if we set a “homogeneous” expansion law and a “homogeneous” averaged density field. This will support the averaging hypothesis that a universe looks similar to a FL model in spite of small-scale fluctuations of density field, if its averaged density field is homogeneous on large scales. We also study the connection of the proper mass of a shell with the mass of gravitationally bound objects. Combining this with the results of the (Formula presented) relation, we discuss an impact of the local inhomogeneities on the determination of the cosmological parameters through the observation of the locally inhomogeneous universe. © 1999 The American Physical Society.

リンク情報
DOI
https://doi.org/10.1103/PhysRevD.60.103508
ID情報
  • DOI : 10.1103/PhysRevD.60.103508
  • ISSN : 1550-2368
  • ISSN : 1550-7998
  • SCOPUS ID : 18144393832

エクスポート
BibTeX RIS