Abstract
view Abstract Citations (25) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The High-Resolution Photospheric Soft X-Ray Spectrum of Sirius B Paerels, F. B. S. ; Bleeker, J. A. M. ; Brinkman, A. C. ; Heise, J. Abstract The authors present the high-resolution soft X-ray spectrum of the hot white dwarf Sirius B, as measured with the 500 lines mm-1 transmission grating spectrometer on EXOSAT. The X-rays are of purely photospheric origin. Using a large grid of model atmospheres, the authors determine the effective temperature of Sirius B with high accuracy. It is shown that a consistent description of the complete electromagnetic spectrum of Sirius B, from optical to X-ray wavelengths, is now possible. This solution requires Te to be in the range 25,000 - 26,000K, dependent on the choice of the other parameters, and the gravity to be in the range log g = 8.5 - 8.7. Publication: The Astrophysical Journal Pub Date: June 1988 DOI: 10.1086/166429 Bibcode: 1988ApJ...329..849P Keywords: Abundance; Hot Stars; Photosphere; Stellar Spectra; White Dwarf Stars; X Ray Spectra; Exosat Satellite; Lyman Spectra; Stellar Atmospheres; Astrophysics full text sources ADS | data products SIMBAD (2) MAST (1)
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