TY - JOUR
T1 - Dynamics of voids and their shapes in redshift space
AU - Maeda, Kei Ichi
AU - Sakai, Nobuyuki
AU - Triay, Roland
PY - 2011/8
Y1 - 2011/8
N2 - 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.
AB - 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.
KW - cosmological parameters from LSS
KW - cosmological perturbation theory
KW - cosmological simulations
KW - dark energy theory
UR - http://www.scopus.com/inward/record.url?scp=80052541069&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052541069&partnerID=8YFLogxK
U2 - 10.1088/1475-7516/2011/08/026
DO - 10.1088/1475-7516/2011/08/026
M3 - Article
AN - SCOPUS:80052541069
VL - 2011
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
SN - 1475-7516
IS - 8
M1 - 026
ER -