| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
Using data obtained by Japanese Infrared Satellite AKARI, and Spitzer space telescope launched by NASA, we studied the period-luminosity(PL)relations and circumstellar extinction law of the Mira-like variables in the Large Magellanic Cloud. We discovered following things :(1)the PL relations have a kink, and the period at which the break occurs is about 450 days,(2)circumstellar extinction law of short period Mira-like variables differs very much from that of interstellar extinction law and the circumstellar extinction law gets similar to the interstellar extinction law with increasing pulsation periods. relations have a kink, and the period at which the break occurs is about 450 days,(2)circumstellar extinction law of short period Mira-like variables differs very much from that of interstellar extinction law and the circumstellar extinction law gets similar to the interstellar extinction law with increasing pulsation periods.
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