830 citations · 10.4k across the 144 of their papers we have counts for
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Lithium in CEMP-no stars: A new constraint on the lithium depletion mechanism in the early universe
Tadafumi Matsuno, Wako Aoki, Takuma Suda +1
Most of relatively warm, unevolved metal-poor stars ( and ) exhibit almost constant lithium abundances, irrespective…
High-resolution spectroscopy of the extremely iron-poor post-AGB star CC Lyr
Wako Aoki, Tadafumi Matsuno, Satoshi Honda +3
High-resolution optical spectroscopy was conducted for the metal-poor post-AGB star CC Lyr to determine its chemical abundances and spectral line profiles. Our standard abundance a…
Dependence of the Sr-to-Ba and Sr-to-Eu Ratio on the Nuclear Equation of State in Metal Poor Halo Stars
M. A. Famiano, T. Kajino, W. Aoki +1
A model is proposed in which the light r-process element enrichment in metal-poor stars is explained via enrichment from a truncated r-process, or "tr-process." The truncation of t…
Line-of-sight velocity and metallicity measurements of the Palomar 5 tidal stream
Miho N. Ishigaki, Narae Hwang, Masashi Chiba +1
We present Subaru/FOCAS and Keck/DEIMOS medium-resolution spectroscopy of a tidally disrupting Milky Way (MW) globular cluster Palomar 5 and its tidal stream. The observed fields a…
Spatially-Resolved Spectroscopy of a Balmer-Dominated Shock in the Cygnus Loop: An Extremely Thin Cosmic-Ray Precursor?
Satoru Katsuda, Keiichi Maeda, Yutaka Ohira +9
We present high-resolution long-slit spectroscopy of a Balmer-dominated shock in the northeastern limb of the Cygnus Loop with the Subaru high dispersion spectrograph. By setting t…
The Be II Resonance Lines in Two Classical Novae V5668 Sgr and V2944 Oph
Akito Tajitsu, Kozo Sadakane, Hiroyuki Naito +3
We report spectroscopic observations of the resonance lines of singly ionized Be in the blue-shifted absorption line systems found in the post-outburst spectra of two classic…