We present ASCA results on the distributions of metallicity and temperature
in 3 bright near-by clusters: A4059, MKW 3s and 2A 0335+096. A significant
gradient in the metal abundance is detected in A4059, while other clusters
suggest similar gradients with low significance. These features together with
recent results on AWM 7 and Perseus clusters suggest that metals injected in
the ICM are not effectively mixed in the cluster space. Analysis of the GIS
data, without explicitly including the cooling flow model, shows no substantial
temperature drop at large radii (at half the virial radii) for the 3 systems.
This is contrary to the recent results for 30 clusters by Markevitch et al.
(1998) who assume rather strong cooling flows. The gas mass fraction of these
clusters are 10-15% within 1 Mpc, which suggests that baryonic fraction of
about 20% including the stellar mass is a common level in galaxy groups and
clusters.Comment: 25 pages, 21 figures; accepted by PASJ; uses PASJ95.sty, PASJ2.sty,
and PASJadd.st
