Abstract
We discuss production of light elements (Li, Be) in energetic type Ic supernovae (SNe Ic) and how newly synthesized light elements are transferred to stars of the next generation. We have pointed out that spallation reactions involving N and He become important in an explosion of a rotating metal-poor star if the progenitor still keeps a fraction of the He layer at SN explosion. In this kind of explosions, 6Li is produced by a fusion reaction He+He. Simultaneously, most of Be is produced through the spallation reaction He+N. This scenario suggests that there must be intrinsic scattering in abundance of Li isotopic ratios among metal-poor stars because the mass range of stars concerned here is limited to ≳ 40 M⊙ and light element yields should be sensitive to the degree of rotation.
| Original language | English |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Pages | 105-110 |
| Number of pages | 6 |
| Volume | 847 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology - Tokyo Duration: 2005 Nov 8 → 2005 Nov 11 |
Other
| Other | ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology |
|---|---|
| City | Tokyo |
| Period | 05/11/8 → 05/11/11 |
Fingerprint
Keywords
- Light elements
- Population II stars
- Supernovae
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Light element production in type Ic supernovae. / Shigeyama, Toshikazu; Nakamura, Ko; Wanajo, Shinya; Inoue, Susumu.
AIP Conference Proceedings. Vol. 847 2006. p. 105-110.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Light element production in type Ic supernovae
AU - Shigeyama, Toshikazu
AU - Nakamura, Ko
AU - Wanajo, Shinya
AU - Inoue, Susumu
PY - 2006
Y1 - 2006
N2 - We discuss production of light elements (Li, Be) in energetic type Ic supernovae (SNe Ic) and how newly synthesized light elements are transferred to stars of the next generation. We have pointed out that spallation reactions involving N and He become important in an explosion of a rotating metal-poor star if the progenitor still keeps a fraction of the He layer at SN explosion. In this kind of explosions, 6Li is produced by a fusion reaction He+He. Simultaneously, most of Be is produced through the spallation reaction He+N. This scenario suggests that there must be intrinsic scattering in abundance of Li isotopic ratios among metal-poor stars because the mass range of stars concerned here is limited to ≳ 40 M⊙ and light element yields should be sensitive to the degree of rotation.
AB - We discuss production of light elements (Li, Be) in energetic type Ic supernovae (SNe Ic) and how newly synthesized light elements are transferred to stars of the next generation. We have pointed out that spallation reactions involving N and He become important in an explosion of a rotating metal-poor star if the progenitor still keeps a fraction of the He layer at SN explosion. In this kind of explosions, 6Li is produced by a fusion reaction He+He. Simultaneously, most of Be is produced through the spallation reaction He+N. This scenario suggests that there must be intrinsic scattering in abundance of Li isotopic ratios among metal-poor stars because the mass range of stars concerned here is limited to ≳ 40 M⊙ and light element yields should be sensitive to the degree of rotation.
KW - Light elements
KW - Population II stars
KW - Supernovae
UR - http://www.scopus.com/inward/record.url?scp=33846340702&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846340702&partnerID=8YFLogxK
U2 - 10.1063/1.2234390
DO - 10.1063/1.2234390
M3 - Conference contribution
AN - SCOPUS:33846340702
SN - 0735403422
SN - 9780735403420
VL - 847
SP - 105
EP - 110
BT - AIP Conference Proceedings
ER -