JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H
巻
JAXA-SP-09-008E
ページ
380 - 381
発行年
2010-02-26
会議概要（会議名, 開催地, 会期, 主催者等）（英）
The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan
抄録（英）
The purpose of this work is to answer the question of "how have spatial distributions of components in galaxy clusters evolved over the history of the universe?". It is well known that galaxy clusters consist of dark matter, intergalactic hot gas, and galaxies, and that hot gas has an extended distribution and galaxy components show a morphology-density relation and the Butcher-Oemler effect. However, the origin of these cluster component distributions is still unknown. One simple interpretation is that galaxies have gradually fallen to the cluster centers, with evolution of their color and morphology. If this simple scenario is correct, the relative distributions of galaxies to hot gas should become centrally-concentrated toward lower redshifts. Our exploratory study suggests that galaxies are falling to the cluster center while hot gas is expanding with decreasing redshifts.
内容記述（英）
Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science
Probing Evolution of Hot Gas and Galaxy Distributions in Galaxy Clusters
64574146.pdf
(175.86KB)
