Testing Cosmological Models using the Kinematics of High Redshift Galaxies

被引：0
|
作者：
C. Marinoni
O. Le Fèvre
机构：
[1] Laboratoire d'Astrophysique de Marseille,
来源：
Astrophysics and Space Science | 2004年 / 290卷
关键词：
Dark Energy; Cosmological Model; Radio Source; Surface Brightness; Cosmological Parameter;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The scaling of the apparent angular diameter of galaxies with redshift θ(z) is a powerful discriminator of cosmological models. In this paper we argue that the rotational velocity of distant galaxies, when interpreted as size indicator, may be used as an interesting tool to select high redshift standard rods. Upcoming deep redshift surveys will allow an implementation of this classical geometrical test to measure directly the amplitude of the cosmological constant Λ, or to constrain the cosmic equation of state parameter for a smooth dark energy component (w = p/ρ, —1 ≤ w < 0).
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页码：195 / 204
页数：9
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