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   PR # 41099
   We propose to perform X-ray spectroscopy of low Lx/Lb ellipticals
   NGC3607 and NGC3608. Hydrodynamical calculations by Ciotti et al.
   (1991) suggest that these low Lx/Lb ellipticals are in gas outflow
   phase due to high SNIa explosion rate. While ASCA has recently
   reveals that giant elliptical galaxies contain little iron in their
   hot gas, suggesting that virtually no SNIa nucleosynthesis in
   ellipticals. To understand this inconsistency, we propose to get
   direct evidence of SNIa in low Lx/Lb ellipticals. If these galaxies
   are really in the outflow phase, their temperature should be
   systematically higher and metallicity higher than high Lx/Lb gas-rich
   ellipticals. X-ray surface brightness distribution will be
   systematically different.
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