Stimulated radiative association of Li and H in the early universe

被引：71

作者：

Stancil, PC ^{[1
]}

Dalgarno, A ^{[1
]}

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1997年 / 479卷 / 02期

关键词：

atomic processes; cosmic microwave background; early universe;

D O I：

10.1086/303920

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The enhancement of the rate coefficient for the radiative association of Li and H to form LiH arising from stimulated emission by the cosmic background radiation field is calculated. It is shown that the effect on the fractional abundance of LiH in the early universe for redshifts z between 1000 and 10 is small.

引用

收藏

页码：543 / 546

页数：4

相关论文

共 10 条

[1] The radiative association of Li+ and H, Li and H+, and Li and H [J].

Dalgarno, A ;

Kirby, K ;

Stancil, PC .

ASTROPHYSICAL JOURNAL, 1996, 458 (02) :397-400

[2]

DEBERNARDIS P, 1993, ASTRON ASTROPHYS, V269, P1

[3] Computed distributions of rotovibrational transitions in LiH(X(1)Sigma(+)) and LiH+(X(2)Sigma(+)) [J].

Gianturco, FA ;

Giorgi, PG ;

Berriche, H ;

Gadea, FX .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1996, 117 (02) :377-392

[4] MOLECULES IN THE EARLY UNIVERSE [J].

LEPP, S ;

SHULL, JM .

ASTROPHYSICAL JOURNAL, 1984, 280 (02) :465-469

[5] MOLECULES IN THE POSTRECOMBINATION UNIVERSE AND MICROWAVE BACKGROUND ANISOTROPIES [J].

MAOLI, R ;

MELCHIORRI, F ;

TOSTI, D .

ASTROPHYSICAL JOURNAL, 1994, 425 (02) :372-381

[6] DEUTERIUM IN THE UNIVERSE [J].

PALLA, F ;

GALLI, D ;

SILK, J .

ASTROPHYSICAL JOURNAL, 1995, 451 (01) :44-50

[7]

PUY D, 1993, ASTRON ASTROPHYS, V267, P337

[8] THE LITHIUM PROBLEM WITH IRAM, OSSE, AND INTEGRAL [J].

SIGNORE, M ;

VEDRENNE, G ;

DEBERNARDIS, P ;

DUBROVICH, V ;

ENCRENAZ, P ;

MAOLI, R ;

MASI, S ;

MASTRANTONIO, G ;

MELCHIORRI, B ;

MELCHIORRI, F ;

TANZILLI, PE .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1994, 92 (02) :535-537

[9] The lithium chemistry of the early universe [J].

Stancil, PC ;

Lepp, S ;

Dalgarno, A .

ASTROPHYSICAL JOURNAL, 1996, 458 (02) :401-406

[10] THE RADIATIVE ASSOCIATION OF HE+ AND H [J].

ZYGELMAN, B ;

DALGARNO, A .

ASTROPHYSICAL JOURNAL, 1990, 365 (01) :239-240