566 citations · 6.6k across the 99 of their papers we have counts for
100 papers
Unique chemical composition of the very metal-poor star LAMOST J1645+4357
Wako Aoki, Haining Li, Nozomu Tominaga +3
We report on the chemical composition of the very metal-poor ([Fe/H]=-2.9) star LAMOST J1645+4357 that is identified to be a red giant having peculiar abundance ratios by Li et al.…
Starspot mapping with adaptive parallel tempering. II. Application to TESS data for M-dwarf flare stars, AU Microscopii, YZ Canis Minoris, and EV Lacertae
Kai Ikuta, Kosuke Namekata, Yuta Notsu +5
Starspots and stellar flares are indicators of stellar magnetic activity.The magnetic energy stored around spots is thought to be the origin of flares, but the connection is not co…
Detection of a high-velocity prominence eruption leading to a CME associated with a superflare on the RS CVn-type star V1355 Orionis
Shun Inoue, Hiroyuki Maehara, Yuta Notsu +5
Stellar coronal mass ejections (CMEs) have recently received much attention for their impacts on exoplanets and stellar evolution. Detecting prominence eruptions, the initial phase…
A Superflare on YZ Canis Minoris Observed by Seimei Telescope and TESS: Red Asymmetry of H Emission Associated with White-Light Emission
Keiichi Namizaki, Kosuke Namekata, Hiroyuki Maehara +4
Active M-type stars are known to often produce superflares on the surface. Radiation from stellar (super-)flares is important for the exoplanet habitability, but the mechanisms are…
Hunting for stellar coronal mass ejections
Kosuke Namekata, Hiroyuki Maehara, Satoshi Honda +3
Solar flares are often accompanied by filament/prominence eruptions, sometimes leading to coronal mass ejections (CMEs). By analogy, we expect that stellar flares are also associat…
Four-hundred Very Metal-Poor Stars Studied with LAMOST and Subaru. II. Elemental abundances
Haining Li, Wako Aoki, Tadafumi Matsuno +9
We present homogeneous abundance analysis of over 20 elements for 385 very metal-poor (VMP) stars based on the LAMOST survey and follow-up observations with the Subaru Telescope. I…