ELEMENTAL ABUNDANCES OF THE B-STAR AND A-STAR GAMMA-GEMINORUM, 7-SEXTANTIS, HR-4817, AND HR-5780

被引：19

作者：

ADELMAN, SJ

PHILIP, AGD

机构：

[1] WESLEYAN UNIV,VAN VLECK OBSERV,MIDDLETOWN,CT 06457

[2] UNION UNIV UNION COLL,SCHENECTADY,NY 12308

[3] NATL OPT ASTRON OBSERV,KITT PEAK NATL OBSERV,TUCSON,AZ

[4] DOMINION ASTROPHYS OBSERV,VICTORIA V8X 4M6,BC,CANADA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1992年 / 104卷 / 675期

关键词：

D O I：

10.1086/132999

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Fine analyses of the B and A stars, gamma-Geminorum, 7 Sextantis, HR 4817, and HR 5780 are performed. Although the data cover rather limited spectral regions, still useful results were obtained. The data were mostly obtained at the KPNO coude feed telescope with CCD TI No. 3, camera 5, and grating A. The He/H ratio of HR 4817 confirms the similarity of many abundance values with those of the peculiar Mn star 53 Tauri. For the most part gamma-Gem, 7 Sex, and HR 5780 have derived abundances similar to those of other normal sharp-lined stars of similar effective temperature.

引用

页码：316 / 321

页数：6

共 35 条

[21]

Martin G.A., 1988, J PHYS CHEM REF DATA, V17, P1

[22] GRIDS FOR THE DETERMINATION OF EFFECTIVE TEMPERATURE AND SURFACE GRAVITY OF B-STARS, A-STARS AND F-STARS USING MU-UPSILON-BY-BETA PHOTOMETRY [J].