Spectroscopic observations of active solar-analog stars with high X-ray luminosity, as a proxy of superflare stars

@article{Notsu2017SpectroscopicOO,
  title={Spectroscopic observations of active solar-analog stars with high X-ray luminosity, as a proxy of superflare stars},
  author={Y. Notsu and S. Honda and H. Maehara and S. Notsu and K. Namekata and D. Nogami and K. Shibata},
  journal={Publications of the Astronomical Society of Japan},
  year={2017},
  volume={69},
  pages={12}
}
  • Y. Notsu, S. Honda, +4 authors K. Shibata
  • Published 2017
  • Physics
  • Publications of the Astronomical Society of Japan
  • Recent studies of solar-type superflare stars have suggested that even old slowly rotating stars similar to the Sun can have large starspots and superflares. We conducted high dispersion spectroscopy of 49 nearby solar-analog stars (G-type main sequence stars with Teff ≈ 5,600 ∼ 6,000 K) identified as ROSAT soft X-ray sources, which are not binary stars from the previous studies. We expected that these stars can be used as a proxy of bright solar-analog superflare stars, since superflare stars… CONTINUE READING
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