| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
Using Subaru/Sprime-Cam intermediate-bands data set, we carried out SED analysis and constructed a large sample of galaxies whose star formation was rapidly declining. We investigated their morphology with HST/ACS data, and found that morphological transition from thin disk to thick spheroidal shape occurs at specific SFR ~1 dex lower than the typical values of normal star-forming galaxies, i.e., main sequence. We also found that those galaxies whose SFR was rapidly declining show a systematically high central concentration of asymmetric components in their surface brightness distribution. We carried out optical spectroscopic observations of massive strong Lya emitters at z~3 whose SFR already declined.
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