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Statistical Properties of Superflares on Solar-type Stars: Results Using All of the Kepler Primary Mission Data
Soshi Okamoto, Yuta Notsu, Hiroyuki Maehara +5
We report the latest statistical analyses of superflares on solar-type (G-type main-sequence; effective temperature is 5100 - 6000 K) stars using all of the primary missio…
Starspot mapping with adaptive parallel tempering I: Implementation of computational code
Kai Ikuta, Hiroyuki Maehara, Yuta Notsu +7
Starspots are thought to be regions of locally strong magnetic fields, similar to sunspots, and they can generate photometric brightness modulations. To deduce stellar and spot pro…
Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with Seimei Telescope, SCAT, NICER and OISTER
Kosuke Namekata, Hiroyuki Maehara, Ryo Sasaki +24
We report multi-wavelength monitoring observations of an M-dwarf flare star AD Leonis with Seimei Telescope (6150--7930 Å), SCAT (Spectroscopic Chuo-university Astronomical Telesco…
Temporal Evolution of Spatially-Resolved Individual Star Spots on a Planet-Hosting Solar-type Star: Kepler 17
Kosuke Namekata, James R. A. Davenport, Brett M. Morris +9
Star spot evolution is visible evidence of the emergence/decay of the magnetic field on stellar surface, and it is therefore important for the understanding of the underlying stell…