16 citations · 21 across the 3 of their papers we have counts for
3 papers
astro-ph.GA2021
Top-heavy stellar mass distribution in galactic nuclei inferred from the universally high abundance ratio of [Fe/Mg]
Daisuke Toyouchi, Kohei Inayoshi, Miho N. Ishigaki +1
Recent observations of active galactic nuclei (AGNs) have shown a high Fe~II/Mg~II line-flux ratio in their broad-line regions, nearly independent of redshift up to .…
astro-ph.GA2016★ 5 cited
Bimodal Distribution of Galactic Disk Stars on the [alpha/Fe]-[Fe/H] Plane as a Possible Evidence of Discontinuous Radial Migration History
Daisuke Toyouchi, Masashi Chiba
We investigate the role of radial migration history of stars in chemical evolution of a disk galaxy, in particular in understanding the origin of their bimodal distribution on the…
astro-ph.GA2014★ 16 cited
On the Chemical and Structural Evolution of the Galactic Disk
Daisuke Toyouchi, Masashi Chiba
We study the detailed properties of the radial metallicity gradient in the stellar disk of our Galaxy to constrain its chemical and structural evolution. For this purpose we select…