274 citations · 321 across the 16 of their papers we have counts for
5 papers · 1 filter
Solar System Migration Points to a Renewed Concept: Galactic Habitable Orbits
Junichi Baba, Takuji Tsujimoto, Takayuki R. Saitoh
Astrophysical evidence suggests that the Sun was born near 5 kpc from the Galactic center, within the corotation radius of the Galactic bar, around 6-7 kpc. This presents challenge…
Chemical enrichment by collapsars as the origin of the unusually high [Ba/Fe] in a massive star cluster of the dwarf galaxy NGC 1569
Brayden Leicester, Kenji Bekki, Takuji Tsujimoto
The super star cluster NGC1569-B has recently been observed to have an extremely high [Ba/Fe]. We consider that the observed high [Ba/Fe] ( 1.3) is due to the chemical enrich…
Impacts of Black-Hole-Forming Supernova Explosions on the Diffuse Neutrino Background
Ken'ichiro Nakazato, Ryuichiro Akaho, Yosuke Ashida +1
Flux spectrum, event rate, and experimental sensitivity are investigated for the diffuse supernova neutrino background (DSNB), which originates from past stellar collapses and is a…
Phosphorus enrichment by ONe novae in the Galaxy
Kenji Bekki, Takuji Tsujimoto
Recent observations have shown that [P/Fe] in the Galactic stars decreases with increasing [Fe/H] for [Fe/H] > -1 whereas it is almost subsolar for [Fe/H]< -2. These [P/Fe] trends…
Joint r-Process Enrichment by Supernovae with a Metallicity Threshold and Neutron Star Mergers
Takuji Tsujimoto
The enrichment history of -process elements has been imprinted on the stellar abundances that change in accordance with increasing metallicity in galaxies. Close examination of…