ON THE IDENTIFICATION OF FIELD HORIZONTAL-BRANCH A STARS

被引：5

作者：

PHILIP, AGD

ADELMAN, SJ

机构：

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

[2] CITADEL,DEPT PHYS,CHARLESTON,SC 29409

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1991年 / 103卷 / 659期

关键词：

HORIZONTAL-BRANCH STARS; POPULATION-II;

D O I：

10.1086/132795

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Field horizontal-branch A-star candidates are found by spectroscopic and colorimetric surveys. To confirm their status four-color, H-beta photometry and ultraviolet spectrophotometry have been employed. In this paper we demonstrate the importance of high-dispersion spectroscopy to identify nonclass members by inspection. The final confirmation of class membership requires an elemental abundance analysis.

引用

页码：63 / 66

页数：4

共 18 条

[1]

Adelman S. J., 1987, Publications of the Dominion Astrophysical Observatory, Victoria, British Columbia, V16, P203

[2] ELEMENTAL ABUNDANCE ANALYSES WITH COADDED DAO SPECTROGRAMS .1. THE FIELD HORIZONTAL-BRANCH STARS HD 64488, 109995 AND 161817 [J].