PRODUCTION OF BE-9 AND HEAVY-ELEMENTS IN THE INHOMOGENEOUS UNIVERSE

被引：49

作者：

TERASAWA, N ^{[1
]}

SATO, K ^{[1
]}

机构：

[1] UNIV TOKYO,FAC SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 362卷 / 02期

关键词：

Cosmology; Diffusion; Nucleosynthesis; Stars : Be; Stars: abundances; Stars: Population II;

D O I：

10.1086/185844

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

While 9Be is expected to provide a test of inhomogeneous models of primordial nucleosynthesis, we show that the previous estimate by the simplified two-zone model of neutron diffusion overestimated the 9Be abundance at least two orders of magnitude in plausible parameter space. The abundances of CNO elements expected to be the seeds of the cosmic r-process are very small in the proper range of baryon/photon ratio consistent with the abundances of light elements.

引用

页码：L47 / L49

页数：3

共 12 条

[1] COSMOLOGICAL QUANTUM CHROMODYNAMICS, NEUTRON DIFFUSION, AND THE PRODUCTION OF PRIMORDIAL HEAVY-ELEMENTS [J].

APPLEGATE, JH ;

HOGAN, CJ ;

SCHERRER, RJ .

ASTROPHYSICAL JOURNAL, 1988, 329 (02) :572-579

[2] CAN BE-9 PROVIDE A TEST OF COSMOLOGICAL THEORIES [J].

BOYD, RN ;

KAJINO, T .

ASTROPHYSICAL JOURNAL, 1989, 336 (02) :L55-L58

[3] THERMONUCLEAR REACTION-RATES .5. [J].

CAUGHLAN, GR ;

FOWLER, WA .

ATOMIC DATA AND NUCLEAR DATA TABLES, 1988, 40 (02) :283-334

[4]

Kurki-Suonio H., 1990, Astrophysical Journal, V353, P406, DOI 10.1086/168626

[5] INHOMOGENEOUS NUCLEOSYNTHESIS WITH NEUTRON DIFFUSION [J].

KURKISUONIO, H ;

MATZNER, RA ;

CENTRELLA, JM ;

ROTHMAN, T ;

WILSON, JR .

PHYSICAL REVIEW D, 1988, 38 (04) :1091-1099

[6] EFFECT OF SMALL-SCALE BARYON INHOMOGENEITY ON COSMIC NUCLEOSYNTHESIS [J].

KURKISUONIO, H ;

MATZNER, RA .

PHYSICAL REVIEW D, 1989, 39 (04) :1046-1053

[7] LATE-TIME NEUTRON DIFFUSION AND NUCLEOSYNTHESIS IN A POST-QCD INHOMOGENEOUS OMEGAB=1 UNIVERSE [J].

MALANEY, RA ;

FOWLER, WA .

ASTROPHYSICAL JOURNAL, 1988, 333 (01) :14-20

[8]

MALANEY RA, 1990, IN PRESS AP J

[9] NEUTRON LIFETIME MEASURED WITH STORED ULTRACOLD NEUTRONS [J].

MAMPE, W ;

AGERON, P ;

BATES, C ;

PENDLEBURY, JM ;

STEYERL, A .

PHYSICAL REVIEW LETTERS, 1989, 63 (06) :593-596

[10] BE-9 ABUNDANCES IN POPULATION-II STARS - IMPLICATIONS FOR LIGHT-ELEMENT NUCLEOSYNTHESIS [J].

RYAN, SG ;

BESSELL, MS ;

SUTHERLAND, RS ;

NORRIS, JE .

ASTROPHYSICAL JOURNAL, 1990, 348 (02) :L57-L60

← 1 2 →