Spectral classification from the ultraviolet line features of S 2/68 spectra. IV. Late-type stars.
Abstract
This paper concerns the classification of more than 150 stars whose spectral types are later than A3-A4 and whose spectra were observed with the sky survey telescope (S2/68) mounted on the TD1 satellite. As in the three previous papers of this series, a statistical study of the spectra is made to establish ultraviolet classification criteria. The scheme thus established permits the separation of Am stars and Ap stars and of a new group of ultraviolet Am stars.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- January 1979
- Bibcode:
- 1979A&AS...35...75C
- Keywords:
-
- A Stars;
- Classifications;
- Late Stars;
- Stellar Spectra;
- Ultraviolet Spectra;
- Sky Surveys (Astronomy);
- Spaceborne Astronomy;
- Statistical Analysis;
- Tables (Data);
- Td-1 Satellite;
- Ultraviolet Spectrophotometers;
- Astronomy;
- Late-Type Stars:Spectral Classification;
- Spectral Classification:UV