Dynamics of hot X-ray emitting gas and feedback from galaxies with ASTRO-H

KAKEN

About This Project

Japan Grant Number
JP16K05300 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
16K05300
Research Category
Grant-in-Aid for Scientific Research (C)
Allocation Type
  • Multi-year Fund
Review Section / Research Field
  • Science and Engineering > Mathematics and Physics > Astronomy > Astronomy
Research Institution
  • Tokyo University of Science
Project Period (FY)
2016-04-01 〜 2020-03-31
Project Status
Completed
Budget Amount*help
4,550,000 Yen (Direct Cost: 3,500,000 Yen Indirect Cost: 1,050,000 Yen)

Research Abstract

We analyze data of the Perseus cluster observed with the Hitomi X-ray satellite. The Perseus cluster is the brightest cluster in the sky, and a suitable target to study feedback from galaxies in the Perseus cluster. We studied the velocity structure, temperature, and metal abundance of the hot gas in the central region of the Perseus cluster of galaxies. Suzaku has a low background and can detect low surface brightness emission of hot gas in the outer part of the clusters of galaxies. We measured the temperature, density, and Fe abundance of the intracluster medium up to the virial radius of the clusters and groups of galaxies. We studied the entropy, pressure, and density fluctuations in the cluster gas. We discuss the initial mass function of stars in cluster galaxies by determining the total mass of heavy elements.

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