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   PR # 41106
   We propose to observe two infrared luminous galaxies: IRAS 17208-0014
   and IRAS 18293-3413. Both of them are very luminous in the infrared
   (~10^12 solar luminosity) and are undergoing violent starburst, but
   show no sign of AGN. This is one of a series of observations to test
   the proposed evolutional sequence from (1) starburst dominating IRL
   galaxies, via (2) IRL galaxies powered by embedded AGN, to (3) bare
   AGN or quasars. This proposal places emphasis on the first stage of
   this evolutional sequence, and to test if the pure starburst activity
   can support these enomous luminosities. Since the IRL galaxies suffer
   large amount of extinction, good sensitivity of ASCA at hard X-ray
   regions is essential to make the proposed observation.
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