Supernovae (SN) and supernova remnants (SNRs) play a major role in the life-cycle of interstellar dusts. Fast shock waves generated by SN explosions sweep out the interstellar space destroying dust grains and modifying their physical and chemical properties. The dense, cooling SN ejecta, on the other hand, provide an environment for dusts to condense. Recent space-infrared telescopes have revealed the hidden universe related to these fascinating microscopic processes. In this paper, I introduce the results on stardusts in young core-collapse supernova remnants obtained by AKARI. The AKARI results show diverse infrared characteristics of stardusts associated with SNRs, implying diverse physical/chemical stellar structures and circumstellar environments at the time of explosion.

ABSTRACT
1. INTRODUCTION
2. STARDUSTS IN SUPERNOVA REMNANTS SEEN BY AKARI
    2.1. Cas A: SNR with a Large Amount of SN Dusts
    2.2. G292.0+1.8: SNR with Prominent CS Dusts
    2.3. G54.1+0.3: SNR with CS/IS or SN Dusts?
    2.4. MSH 15-52: SNR with Stardusts near Pulsar
    2.5. CS Dusts in SNRs in Transition Phase
3. CONCLUDING REMARK
REFERENCES

• BON-CHUL KOO(Department of Physics and Astronomy, Seoul National University)