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Suzuki, Toshio*; Chiba, Satoshi; Iwamoto, Osamu; Kajino, Toshitaka*
AIP Conference Proceedings 847, p.479 - 481, 2006/07
no abstracts in English
Li(
,n)
B reaction for astrophysical interestDas, S. K.*; Fukuda, Tomokazu*; Mizoi, Yutaka*; Ishiyama, Hironobu*; Miyatake, Hiroari*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Tanaka, Masahiko*; Yoshikawa, Nobuharu*; Jeong, S.-C.*; et al.
AIP Conference Proceedings 847, p.374 - 376, 2006/07
no abstracts in English
Smith, M. S.*; Lingerfelt, E. J.*; Scott, J. P.*; Nesaraja, C. D.*; Hix, W. R.*; Chae, K.*; Koura, Hiroyuki; Meyer, R. A.*; Bardayan, D. W.*; Blackmon, J. C.*; et al.
AIP Conference Proceedings 847, p.470 - 472, 2006/07
no abstracts in English
conditionsIwamoto, Nobuyuki; Umeda, Hideyuki*; Nomoto, Kenichi*; Tominaga, Nozomu*; Thielemann, F. K.*; Hix, W. R.*
AIP Conference Proceedings 847, p.409 - 411, 2006/07
The observations of metal-poor stars with metallicity [Fe/H] 
have been extensively performed. The abundance patterns of these stars are well explained by supernova models with extensive material mixing and fallback onto the compact remnant. Nevertheless important deficiencies of odd elements (especially Sc and K) are present in most investigations. Recent simulations of core collapse supernovae showed that innermost ejecta undergo large amounts of neutrino flux and neutrino interactions with materials in these ejecta change electron fraction to 
. Nucleosynthesis in the proton-rich environments allows Sc and Zn (which are less produced in normal supernova models) to be enriched. Therefore, it is interesting to investigate the influence of a large variation of on explosive nucleosynthesis. We calculate nucleosynthesis with ranging from 0.48 to 0.58 in complete and incomplete Si burning layers in Pop III supernovae. We discuss the production of some important nuclei and compare the abundance patterns with those in observed extremely metal-poor stars.
-process in the carbon deflagration model for type Ia supernovae and chronology of the solar system formationKusakabe, Motohiko*; Iwamoto, Nobuyuki; Nomoto, Kenichi*
AIP Conference Proceedings 847, p.424 - 426, 2006/07
We consider nucleochronology with four -process radioactive nuclides 
Mn, 
Nb, 
Tc and 
Sm which are produced in a carbon deflagration model for type Ia supernovae. We apply the result of the -process nucleosynthesis to simple galactic chemical evolution models and discuss the circumstances of the solar system formation.
Nishimura, Takanori*; Iwamoto, Nobuyuki; Suda, Takuma*; Aikawa, Masayuki*; Fujimoto, Masayuki*; Iben, I. Jr.*
AIP Conference Proceedings 847, p.455 - 457, 2006/07
We investigated the progress of nucleosynthesis in the helium flash driven convective zone which triggers the mixing of hydrogen into this convective zone in the extremely metal-poor, asymptotic giant branch stars with low and intermediate masses. The amounts of 
C created by proton captures on abundant 
C in He layer strongly depend on the resultant abundances of nuclei. We showed that under circumstances initially devoid of metals, the heavy 
-process elements such as Sr, Ba and even Pb can be formed with light elements as seeds which are produced via two neutron-recycling reactions (C(n,
)C(,n)
O and O(n,)
O(,n)
Ne).
Hayakawa, Takehito; Iwamoto, Nobuyuki; Shizuma, Toshiyuki; Kajino, Toshitaka*; Umeda, Hideyuki*; Nomoto, Kenichi*
no journal, ,
no abstracts in English
,n) reactions on light neutron-rich nuclei using low-energy radioactive nuclear beamsHashimoto, Takashi; Mitsuoka, Shinichi; Ichikawa, Shinichi; Ikezoe, Hiroshi; Miyatake, Hiroari; Ishiyama, Hironobu*; Watanabe, Yutaka*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Tanaka, Masahiko*; et al.
no journal, ,
no abstracts in English
