THE IRON ABUNDANCE IN HELIUM STAR HD-144941

Authors
JEFFERY CS HARRISON PM
Citation
Cs. Jeffery et Pm. Harrison, THE IRON ABUNDANCE IN HELIUM STAR HD-144941, Astronomy and astrophysics, 323(2), 1997, pp. 393-394
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
323
Issue
2
Year of publication
1997
Pages
393 - 394
Database
ISI
SICI code
0004-6361(1997)323:2<393:TIAIHS>2.0.ZU;2-V
Abstract
The iron abundance in the helium star HD 144941 has been measured from ultraviolet Fe III lines. It is 1.9 +/- 0.2 dex below solar and confi rms the low metallicity (Z = 0.0003) previously determined from measur ements of CNO and other light elements. The result is important becaus e the low CNO metallicity must be reflected in the iron-group elements in order to explain why HD 144941 does not show pulsations.