Документ взят из кэша поисковой машины. Адрес оригинального документа : http://jet.sao.ru/hq/balega/PUBL_BAL/PUB_2003/2003BSAO_55_5.htm
Дата изменения: Wed Feb 24 16:01:49 2010
Дата индексирования: Tue Oct 2 07:02:07 2012
Кодировка:
Поисковые слова: equinox
Iron abundance in the atmospheres of components of the binary system 41 Draconis

NASA ADS Astronomy/Planetary Abstract Service

· Find Similar Abstracts (with default settings below)
· References in the Article
· Citations to the Article (1)
·
· Translate Abstract
Title:
Iron abundance in the atmospheres of components of the binary system 41 Draconis
Authors:
Balega, Yu. Yu.; Leushin, V. V.; Weigelt, G.
Journal:
Bulletin of the Special Astrophysical Observatory. Russian Academy of Sciences, Saint-Petersburg. (Izvestiya Spetsial'noi Astrofizicheskoi Observatorii) (ISSN 0320-9318), Vol. 55, p. 5 - 17 (2003)
Publication Date:
00/2003
Origin:
ARI
Keywords:
Stars: Binaries, Stars: Atmospheres, Stars: Abundances
Abstract Copyright:
Vertex International
Bibliographic Code:
2003BSAO...55....5B

Abstract

Iron abundances, FeI and FeII lines equivalent widths, and microturbulence velocities were found for the components of a highly eccentric spectroscopic and interferometric binary system 41 Dra from high resolution spectra obtained close to the periastron. Weighted mean values of iron abundances in the atmospheres are lgN(Fe) = 7.66 ± 0.03 and lgN(Fe) = 7.72 ± 0.03 for the component a and b, correspondingly. These values are approximately 0.2 dex higher than the solar iron abundance. The flux ratio, measured from the depths of FeI and FeII lines, Eb/Ea = 0.7, is in agreement with the magnitude difference 0.m41 found recently by speckle interferometry. It is supposed that the weaker companion of the binary has slightly higher effective temperature.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy/Planetary
Instrumentation
Physics/Geophysics
ArXiv Preprints
    

NASA ADS Homepage | ADS Sitemap | Query Form | Preferences | HELP | FAQ