Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....95..244h&link_type=abstract
Astronomy and Astrophysics, vol. 95, no. 2, Mar. 1981, p. 244-249. Deutsche Forschungsgemeinschaft
Astronomy and Astrophysics
Astrophysics
47
Helium Hydrogen Atmospheres, O Stars, Stellar Atmospheres, Stellar Spectra, Stellar Spectrophotometry, Thermodynamic Equilibrium, Abundance, Atmospheric Models, B Stars, Stellar Evolution, Stellar Luminosity
Scientific paper
The spectra of 11 subluminous O-type stars were obtained with the ESO 3.60 m telescope (a resolution of 29 A/mm at wavelengths of 4250-4800 A). The spectra were analyzed quantitatively for effective temperature, surface gravity, and H/He ratio by using a grid of NLTE model atmospheres, effective temperature from 36,000 to 55,000 K, and log g from 4.0 to 6.5. Seven of the stars are helium-enriched; two are extremely rich in helium (SB21 and TON-S 103). The evolutionary status of the intermediate helium stars is examined.
Gruschinske J.
Hunger Kurt
Kudritzki Rolf Peter
Simon K. P.
No associations
LandOfFree
NON-LTE analysis of subluminous O-stars. IV - Spectral photometry and NLTE analysis of 11 subluminous stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with NON-LTE analysis of subluminous O-stars. IV - Spectral photometry and NLTE analysis of 11 subluminous stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NON-LTE analysis of subluminous O-stars. IV - Spectral photometry and NLTE analysis of 11 subluminous stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1785433