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   PR # 42102
   We propose ASCA observations of three bright early-type galaxies:
   NGC1395, NGC1553, and NGC4756. The relative contributions of hot gas
   and X-ray binaries to the emission will be determined from the
   overall spectral shape. The fluxes of iron lines give a direct
   measure of the Type Ia SN rate, while lines from lighter elements
   will be used to study the chemical evolution and dynamics of the gas.
   NGC1395 and NGC1553 have very deep ROSAT PSPC and HRI images, which
   will be combined with our ASCA pointings to determine surface
   brightness distributions, temperatures, heavy element abundances, and
   virial masses. The surface brightnesses, temperatures, and abundances
   will tell us whether the gas in ellipticals is in steady-state or is
   expanding (subsonically or in a wind).
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