Y. Terashima, P.J. Serlemitsos, H. Kunieda, and K. Iwasawa
Abstract

We observed two spiral galaxies NGC4594 (M104) and NGC3628 with ASCA to search for hidden low luminosity active galactic nuclei (LLAGN). ASCA X-ray images of them indicate the existence of point-like source and soft diffuse emission. A point like source in NGC4594 emits 8x1040erg/s in 2-10keV band and likely to be LLAGN. Though NGC3628 also emits luminosity exceeds 4x1040 erg/s, the ratio of X-ray luminosity to infrared luminosity is consistent with starburst galaxy.