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High Dispersion Spectroscopy of Solar-type Superflare Stars. II. Stellar Rotation, Starspots, and Chromospheric Activities
Yuta Notsu, Satoshi Honda, Hiroyuki Maehara +4
We conducted high dispersion spectroscopic observations of 50 superflare stars with Subaru/HDS. These 50 stars were selected from the solar-type superflare stars that we had discov…
High Dispersion Spectroscopy of Solar-type Superflare Stars. I. Temperature, Surface Gravity, Metallicity, and
Yuta Notsu, Satoshi Honda, Hiroyuki Maehara +4
We conducted high dispersion spectroscopic observations of 50 superflare stars with Subaru/HDS, and measured the stellar parameters of them. These 50 targets were selected from the…
Two Sun-like Superflare Stars Rotating as Slow as the Sun
Daisaku Nogami, Yuta Notsu, Satoshi Honda +4
We report on the results of high dispersion spectroscopy of two `superflare stars', KIC 9766237, and KIC 9944137 with Subaru/HDS. Superflare stars are G-type main sequence stars, b…