On the ultraviolet energy distributions and the temperatures of peculiar B and A stars.
Abstract
Color temperatures have been estimated by comparing ultraviolet observations of HgMn and magnetic Ap stars with those of normal stars. Ultraviolet data from the OAO-2, ANS, TD-1, and IUE satellites generally give similar results. The values for the normal stars were derived from comparison of fluxes predicted by solar-composition fully line-blanketed model atmospheres with optical region spectrophotometry. The ultraviolet temperatures of the HgMn stars cover a narrower temperature range than do their optical region values. Magnetic Ap stars with similar optical region temperatures can show substantial differences in their ultraviolet color temperatures. This may result from magnetic field configuration and abundance differences.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- October 1985
- DOI:
- 10.1086/131650
- Bibcode:
- 1985PASP...97..970A
- Keywords:
-
- A Stars;
- B Stars;
- Magnetic Stars;
- Peculiar Stars;
- Spectral Energy Distribution;
- Stellar Spectrophotometry;
- Stellar Temperature;
- Iue;
- Manganese;
- Mercury (Metal);
- Ultraviolet Spectra;
- Astrophysics