title: Infrared Observation of Ices around Extragalactic Protostars

authors: Takashi Shimonishi

abstract: Recent advances in infrared observational instruments enable us to detect spectral information of protostars in extragalaxies. The Large and Small Magellanic Clouds are the nearest irregular galaxies to the Milky Way. They possesses different environment from the Milky Way such as low metallicity or strong interstellar radiation field. Star- and planet-formation activities can occur in any type of galaxies in the universe. In order to understand the diversity of materials in the universe, spectroscopic studies of extragalactic protostars have great importance. 

 Infrared spectra of embedded protostars show a variety of absorption bands arising from ices such as water or carbon dioxide. Ices are believed to play an important role in the chemical evolution of star- and planet-forming regions. We have been conducting an infrared study of ices around protostars in the Magellanic Clouds with AKARI. I'm going to introduce our recent results in this presentation.