| Budget Amount *help |
¥44,590,000 (Direct Cost: ¥34,300,000、Indirect Cost: ¥10,290,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2019: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2018: ¥20,930,000 (Direct Cost: ¥16,100,000、Indirect Cost: ¥4,830,000)
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| Outline of Final Research Achievements |
This research tried to conduct a new exoplanet search targeting intermediate-mass giants avoiding uncertainties in mass estimation for central stars and small number of sample stars inherent in evolved intermediate-mass stars. First we developed a machine-learning-based method to estimate metallicity of giant stars using multi-band photometric data, which can be used to efficiently identify intermediate-mass giants. Next we developed and installed a new high-dispersion spectrograph to Kyoto-Okayama 3.8m telescope for a dedicated exoplanet search. Lastly, we discovered a new short-period giant-planet candidate orbiting around an intermediate-mass giant using Okayama 188cm telescope, which have been rarely discovered from previous surveys.
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