Scaling relations for the supernova γ-process and the 176Lu nuclear cosmochronometer

被引：8

作者：

Hayakawa, T ^{[1
]}

Iwamoto, N

Shizuma, T

Kajino, T

Umeda, H

Nomoto, K

机构：

[1] Japan Atom Energy Res Inst, Adv Photon Res Ctr, Kyoto 6190215, Japan

[2] Natl Astron Observat, Mitaka, Tokyo 1818588, Japan

[3] Japan Atom Energy Res Inst, Dept Nucl Energy Syst, Tokai, Ibaraki 3191195, Japan

[4] Univ Tokyo, Sch Sci, Dept Astron, Tokyo 1130033, Japan

来源：

NUCLEAR PHYSICS A | 2005年 / 758卷

关键词：

D O I：

10.1016/j.nuclphysa.2005.05.095

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Analyzing the solar system abundances, we find two universal scaling relations concerning the p- and s-nuclei. These scalings indicate that the gamma-process nucleosynthesis in supernova, (SN) explosions is the most probable origin of the p-nuclei. In addition the scalings lead to new concepts: a universality of the gamma-process and a new nuclear cosmochronometer. Calculations of the gamma-process are carried out for typical core-collapse SN explosion models. These confirm the observed

引用

页码：525C / 528C

页数：4

共 12 条

[1]

ARNOULD M, 1976, ASTRON ASTROPHYS, V46, P117

[2]

AUDOUZE J, 1970, ASTRON ASTROPHYS, V8, P436

[3] LU-176 - COSMIC CLOCK OR STELLAR THERMOMETER [J].

BEER, H ;

KAPPELER, F ;

WISSHAK, K ;

WARD, RA .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1981, 46 (04) :295-317

[4]

Firestone R.B., 1998, Table of Isotopes, V8th

[5] The puzzle of the synthesis of the rare nuclide 138La [J].

Goriely, S ;

Arnould, M ;

Borzov, I ;

Rayet, M .

ASTRONOMY & ASTROPHYSICS, 2001, 375 (02) :L35-L38

[6]

IWAMOTO N, 2004, IN PRESS INT S OR MA

[7]

PELLIN MJ, 2000, LUNAR PLANET SCI C, V31, P1917

[8]

RAYET M, 1995, ASTRON ASTROPHYS, V298, P517

[9] End point of the rp process on accreting neutron stars [J].

Schatz, H ;

Aprahamian, A ;

Barnard, V ;

Bildsten, L ;

Cumming, A ;

Ouellette, M ;

Rauscher, T ;

Thielemann, FK ;

Wiescher, M .

PHYSICAL REVIEW LETTERS, 2001, 86 (16) :3471-3474

[10] Cross section measurements of the 181Ta(γ,n)180Ta reaction near neutron threshold and the p-process nucleosynthesis -: art. no. 015807 [J].

Utsunomiya, H ;

Akimune, H ;

Goko, S ;

Ohta, M ;

Ueda, H ;

Yamagata, T ;

Yamasaki, K ;

Ohgaki, H ;

Toyokawa, H ;

Lui, YW ;

Hayakawa, T ;

Shizuma, T ;

Khan, E ;

Goriely, S .

PHYSICAL REVIEW C, 2003, 67 (01) :158071-158079

← 1 2 →