CN status of a sample of galactic OB supergiants (CROSBI ID 515380)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Sarta Deković, Mariza ; Kotnik-Karuza, Dubravka
engleski
CN status of a sample of galactic OB supergiants
In search for evidence for the CNO processed material in the atmospheres of galactic OB supergiants we measured the equivalent widths of photospheric lines in the high-resolution IUE spectra. A sample of 36 stars was investigated and the lines He II 1640 Å ; ; , C III 1247 Å ; ; , N IV 1718 Å ; ; and O IV 1339 Å ; ; were studied. All ions show a well-defined dependence on effective temperature. Comparison of stars with questionable CN status with normal stars gives evidence for decrease in equivalent widths of C III and O IV lines accompanied by increase in equivalent widths of N IV and He II lines, which leads to abundance differences.
abundances; OB supergiants; UV spectroscopy; processed material
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
39-42-x.
2005.
objavljeno
Podaci o matičnoj publikaciji
Massive Stars and High-Energy Emission in OB Associations
Rauw, Gregor ; Nazé, Yaël ; Blomme, Ronny ; Gosset, Eric
Liege: Université de Liège
Podaci o skupu
JENAM 2005 Distant Worlds
poster
04.07.2005-07.07.2005
Liège, Belgija