In attempts to detect gravitational waves, the response of some celestial systems such as the earth[l] or binary systems[2] to such waves have been investigated. Following this line of thought, here we study the possibility of excitation of the oscillation modes of a polytropic star by gravitational radiation and calculate the relevant absorption cross sections.

• H. G. KHOSROSHAHI(Institute for Advanced Studies in Basic Sciences)
• Y. SOBOUTI(Institute for Advanced Studies in Basic Sciences/Department of physics, Shiraz University/Center for Theoretical Physics and Mathematics, AEOI)