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H0 from Distant Clusters of Galaxies Observed with ASCA

Published online by Cambridge University Press:  25 May 2016

A. Furuzawa ,
Y. Tawara ,
K. Yamashita ,
S. Miyoshi  and
M. Matsuura
A. Furuzawa
Affiliation:
Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01, Japan
Y. Tawara
Affiliation:
Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01, Japan
K. Yamashita
Affiliation:
Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-01, Japan
S. Miyoshi
Affiliation:
Kyoto Sangyo University
M. Matsuura
Affiliation:
Kyoto Sangyo University

Extract

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ASCA, Japanese X-ray Sattelite, can obtain the spatial distribution of density and temperature of the intracluster medium at the same time and greatly improve the accuracy for the derivation of the Hubble constant using the thermal Sunyaev-Zel'dovich effect. Table 1 shows the results of ASCA observations of 4 distant clusters of galaxies. The parameters of the density distribution were obtained assuming the β model.

Type
I. Cosmological Parameters, H0, q0, Ω0 and Λ
Information
Symposium - International Astronomical Union , Volume 183: Cosmological Parameters and the Evolution of the Universe , 1999 , pp. 66
Copyright
Copyright © Kluwer 1999