******************************************************
   PR # 11171
    We propose to observe two low temperature clusters of galaxies, A2063
    and A3112, to study the origin and the evolution of intracluster
    medium(ICM). Spatial resolved high resolution spectroscopy enabled us
    to measure the distributions of heavy elements(Mg, Si, S, Ar, Ca, Fe,
    and Ni) in the ICM, which are crucial to study the ejection mechanism
    of the interstellar gas from galaxies. Relative abundance between
    iron and silicon group elements are also important to estimate the
    initial mass function of the stars which contribute to heavy elements
    in the ICM. Our observation will provide strong constraint to the gas
    ejection models.


 ******************************************************