Dynamics of voids and their shapes in redshift space

Kei Ichi Maeda*, Nobuyuki Sakai, Roland Triay

*この研究の対応する著者

研究成果査読

6 被引用数 (Scopus)

抄録

We investigate the dynamics of a single spherical void embedded in a Friedmann-Lematre universe, and analyze the void shape in the redshift space. We find that the void in the redshift space appears as an ellipse shape elongated along the line of sight (i.e., an opposite deformation to the Kaiser effect). Applying this result to observed void candidates at the redshift z ∼ 1-2, it may provide us with a new method to evaluate the cosmological parameters, in particular the value of a cosmological constant.

本文言語English
論文番号026
ジャーナルJournal of Cosmology and Astroparticle Physics
2011
8
DOI
出版ステータスPublished - 2011 8

ASJC Scopus subject areas

  • 天文学と天体物理学

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