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astro-ph2000
Non-LTE effects in neutron star atmospheres
K. Werner, J. Deetjen
We present the first non-LTE model atmospheres for neutron stars (NS). We study their structure and NLTE effects on the emergent thermal radiation of old isolated NS.
astro-ph2000
ORFEUS II echelle spectra: On the influence of iron-group line blanketing in the Far-UV spectral range of hot subdwarfs
Jochen L. Deetjen
We present an analysis of the subdwarf O star Feige 67 with a fully metal-line blanketed NLTE model atmosphere based on high-resolution Far-UV (912-2000 A) and Near-UV (2000-3400 A…
astro-ph2000
The iron abundance in hot central stars of planetary nebulae derived from IUE spectra
J. L. Deetjen, S. Dreizler, T. Rauch +1
We present the first attempt to determine the iron abundance in hot central stars of planetary nebulae. We perform an analysis with fully metal-line blanketed NLTE model atmosphere…