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Discovery of the Central Excess Brightness in Hard X-rays in the Cluster of Galaxies Abell 1795
H. Xu, K. Makishima, Y. Fukazawa +4
Using the X-ray data from \ASCA, spectral and spatial properties of the intra-cluster medium (ICM) of the cD cluster Abell 1795 are studied, up to a radial distance of (…
An ASCA-ROSAT Study of the Distant, Lensing Cluster A2390
H. Boehringer, Y. Tanaka, R. F. Mushotzky +2
We present the results of a combined study of ASCA and ROSAT observations of the distant cluster Abell 2390.We determine the surface brightness profile and the gas density distribu…
Largely Extended X-ray Emission around the Elliptical Galaxy NGC 4636 Observed with ASCA
Kyoko Matsushita, Kazuo Makishima, Yasushi Ikebe +3
ASCA observations of NGC 4636 and a southern region have revealed extended X-ray emission to a radius of about 300 kpc from the galaxy. The symmetric nature of the observed surface…
ASCA Measurements of Silicon and Iron Abundances in the Intracluster Medium
Yasushi Fukazawa, Kazuo Makishima, Takayuki Tamura +5
We analyzed the ASCA X-ray data of 40 nearby clusters of galaxies, whose intracluster-medium temperature distributes in the range of 0.9--10 keV. We measured the Si and Fe abundanc…