Distribution of supernova properties in the early universe

Tominaga, Nozomu*; Iwamoto, Nobuyuki; Nomoto, Kenichi*

AIP Conference Proceedings 1594, p.52 - 57, 2014/05

https://doi.org/10.1063/1.4874044

The first metal enrichment in the universe was made by a supernova (SN) explosion of a population (Pop) III star. Chemical abundance in the early universe is recorded in abundance patterns of extremely metal-poor (EMP) stars. Increasing number of the EMP stars is now being discovered and allows us to statistically constrain explosion properties of Pop III SNe. We present Pop III SN models that reproduce well individual abundance patterns of 48 most metal-poor stars with [Fe/H] -3.5, and derive relations between abundance ratios and explosion properties of Pop III SNe.

Evidence for p-process nucleosynthesis recorded at the solar system abundances

Hayakawa, Takehito; Iwamoto, Nobuyuki; Shizuma, Toshiyuki; Kajino, Toshitaka*; Umeda, Hideyuki*; Nomoto, Kenichi*

European Physical Journal A, 27(S1), p.123 - 128, 2006/03

https://doi.org/10.1140/epja/i2006-08-017-6

no abstracts in English

New -process path and its implications for a Re-Os nucleo-cosmochronometer

Hayakawa, Takehito; Shizuma, Toshiyuki; Kajino, Toshitaka*; Chiba, Satoshi; Shinohara, Nobuo; Nakagawa, Tsuneo; Arima, Taiko*

Astrophysical Journal, 628(1, Part1), p.533 - 540, 2005/07

https://doi.org/10.1086/430198

no abstracts in English

Simulation of transitions between "Pasta" phases in dense matter

Watanabe, Gentaro*; Maruyama, Toshiki; Sato, Katsuhiko*; Yasuoka, Kenji*; Ebisuzaki, Toshikazu*

Physical Review Letters, 94(3), p.031101_1 - 031101_4, 2005/01

https://doi.org/10.1103/PhysRevLett.94.031101

no abstracts in English

Proceedings of the 5th Symposium on Science of Hadrons under Extreme Conditions; March 18-20, 2003, JAERI, Tokai, Japan

Maruyama, Toshiki; Chiba, Satoshi

JAERI-Conf 2003-009, 233 Pages, 2003/08

JAERI-Conf-2003-009.pdf:15.94MB

The fifth symposium on Science of Hadrons under Extreme Conditions, organized by the Research Group for Hadron Science, Advanced Science Research Center, was held at Tokai Research Establishment of JAERI on March 18 to 20, 2003. The symposium was devoted for discussions and presentations of research results in wide variety of hadron physics such as nuclear matter, hypernuclei, neutron stars, supernovae, nucleosynthesis, heavy-ion reactions, quark matter and quantum chromodynamics to understand various aspects of hadrons under extreme conditions. Thirty three papers on these topics presented at the symposium aroused lively discussions among approximately 50 participants. The concluding remark for the "research group for hadron science" and the explanation of next project "research group for manybody theory of hadron systems" was also presented by the group leader Dr. S. Chiba with gratitude to the participants and to all the scientists concerned.

Nuclear reactions in ultra-magnetized supernovae

Kondratyev, V. N.

JAERI-Research 2002-010, 32 Pages, 2002/06

JAERI-Research-2002-010.pdf:2.09MB

no abstracts in English

Nuclear matter structure studied with quantum molecular dynamics

Maruyama, Toshiki; Niita, Koji*; Oyamatsu, Kazuhiro*; Maruyama, Tomoyuki*; Chiba, Satoshi; Iwamoto, Akira

Nuclear Physics A, 654(3-4), p.908C - 911C, 1999/00

no abstracts in English