Elemental abundance analyses with DAO spectrograms -: XIX.: The superficially normal B stars ζ Draconis, η Lyrae, 8 Cygni and 22 Cygni

被引：17

作者：

Adelman, SJ ^{[1
]}

机构：

[1] The Citadel, Dept Phys, Charleston, SC 29409 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1998年 / 296卷 / 04期

关键词：

stars : abundances; stars : early-type; stars : individual :zeta Draconis; stars : individual :eta Lyrae; stars : individual : 8 Cygni; stars : individual : 22 Cygni;

D O I：

10.1046/j.1365-8711.1998.01426.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Elemental abundances of the superficially normal early and middle B stars zeta Dra, eta Lyr, 8 Cyg and 22 Cyg are derived, consistent with previous studies in this series, using spectrograms obtained with Reticon and CCD detectors. Almost all of the derived metal abundances are found to be solar within the errors of the analysis. However, the He/H ratios are slightly greater than solar.

引用

页码：856 / 862

页数：7

共 48 条

[1]

Abt H. A., 1972, BIBLIO STELLAR RADIA

[2]

ADELMAN SJ, 1985, ASTRON ASTROPHYS, V152, P434

[3] ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR [J].

ANDERS, E ;

GREVESSE, N .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (01) :197-214

[4]

[Anonymous], 1975, 362 SAO

[5]

Bevington P., 2002, Data Reduction and Error Analysis for the Physical Sciences, V3rd ed.

[6]

BIEMONT E, 1993, ASTRON ASTROPHYS, V273, P665

[7]

BIEMONT E, 1991, ASTRON ASTROPHYS, V249, P539

[8]

BIEMONT E, 1993, ASTRON ASTROPHYS SUP, V102, P435

[9]

BIEMONT E, 1993, APJ, V412, P432

[10]

BIZZARRI A, 1993, ASTRON ASTROPHYS, V273, P707

← 1 2 3 4 5 →