| Project/Area Number |
17K14256
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
Lee Chien-Hsiu 国立天文台, ハワイ観測所, RCUH職員 (00792623)
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| Research Collaborator |
Mihael Kodric
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| Project Period (FY) |
2017-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | Andromeda galaxy / variables, transient / time-domain surveys / variables / transient / M31 / time-domain studies / variable / Image subtraction / 光学赤外線天文学 |
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| Outline of Final Research Achievements |
We bring archival time-series data of M31 (from 1m, 2m 4m to 8m telescopes) into a coherence picture by providing high-quality light curve with difference imaging analysis,augmented with multi-wavelength deep imaging from UV, optical to near and mid-IR. This data-set can render M31 as a distance anchor, to study the end stage of massive stars, to provide a census of SNe Ia progenitor through single degenerate channel. In addition, this data-set also serves a basis to develop light curve classification algorithms that will be employed in the future time-domain surveys, such as Zwicky Transient Factory and Large Synoptic Survey Telescope.
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| Academic Significance and Societal Importance of the Research Achievements |
M31 provides unique leverage to stellar evolution, star formation, galaxy evolution, and cosmology.We re-process time-series M31 imaging in 1999-2016 and augment the light curves with UV to IR imaging. This data-set will serve the basis to digest big data with ZTF and LSST.
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