DARTS AKARI page
2006-2-22: Launch of Astro-F/AKARI
2008-3-7: Public data release was started.
2008年3月7日金曜日
2008年3月1日土曜日
Suzaku Observations of the Cluster of Galaxies Abell 2052
A paper,
Suzaku Observations of the Cluster of Galaxies Abell 2052
was accepted to publication in PASJ.
ADS link
abstract
The results from Suzaku XIS observations of the relaxed cluster of galaxies Abell2052 are presented. Offset pointing data are used to estimate the Galactic foreground emission in the direction to the cluster. Significant soft X-ray excess emission above this foreground, the intra-cluster medium emission, and other background components is confirmed and resolved spectroscopically and radially. This excess can be described either by (a) local variations of known Galactic emission components or (b) an additional thermal component with temperature of about 0.2 keV, possibly associated with the cluster. The radial temperature and metal abundance profiles of the intra-cluster medium are measured within \sim 20 in radius (about 60% of the virial radius) from the cluster center . The temperature drops radially to 0.5-0.6 of the peak value at a radius of \sim 15'. The gas-mass-weighted metal abundance averaged over the observed region is found to be 0.21 +- 0.05 times solar.
Suzaku Observations of the Cluster of Galaxies Abell 2052
was accepted to publication in PASJ.
ADS link
abstract
The results from Suzaku XIS observations of the relaxed cluster of galaxies Abell2052 are presented. Offset pointing data are used to estimate the Galactic foreground emission in the direction to the cluster. Significant soft X-ray excess emission above this foreground, the intra-cluster medium emission, and other background components is confirmed and resolved spectroscopically and radially. This excess can be described either by (a) local variations of known Galactic emission components or (b) an additional thermal component with temperature of about 0.2 keV, possibly associated with the cluster. The radial temperature and metal abundance profiles of the intra-cluster medium are measured within \sim 20 in radius (about 60% of the virial radius) from the cluster center . The temperature drops radially to 0.5-0.6 of the peak value at a radius of \sim 15'. The gas-mass-weighted metal abundance averaged over the observed region is found to be 0.21 +- 0.05 times solar.
2007年10月12日金曜日
2007年9月13日木曜日
2007年9月1日土曜日
2007年6月25日月曜日
sesto/clutser
Tracing Cosmic Evolution with Clusters of Galaxies: Six Years Later
Sesto Pusteria (Italy),
June 25-29, 2007
Suzaku observation of the Abell 2052 cluster of galaxies
Sesto Pusteria (Italy),
June 25-29, 2007
Suzaku observation of the Abell 2052 cluster of galaxies
2007年5月28日月曜日
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