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| Paper: |
Nucleosynthesis in Gamma-Ray Bursts and Supernovae: Constraints of Extremely Metal-Poor Stars |
| Volume: |
458, Galactic Archaeology: Near-Field Cosmology and the Formation of the Milky Way |
| Page: |
47 |
| Authors: |
Tominaga, N. |
| Abstract: |
I present nucleosynthesis in explosions with relativistic
jets or non- relativistic mildly aspherical components, assuming
gamma-ray bursts (GRBs) or supernovae (SNe), and compare the abundance
ratios of their yields with those
of the extremely metal-poor (EMP) stars. The explosion with non-relativistic mildly aspherical
energy deposition
can explain [Mg/Fe], [Ca/Fe], and [Zn/Fe] but not [Ti/Fe], while the explosion
with relativistic jets can explain [Ca/Fe], [Ti/Fe], and [Zn/Fe] but
not [Mg/Fe]. This illustrates that the explosion with relativistic
jets or non-relativistic mildly aspherical components cannot fully
reproduce the EMP stars and implies that the explosion with relativistic
jets and non-relativistic mildly aspherical components as in GRB-SNe
could explain the abundance ratios of EMP stars simultaneously. |
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