Observational studies of pre-main-sequence evolution.
Abstract
Optical scanner data from 4270 to 6710 A with a resolution of 7 A were obtained for some 500 H-alpha stars. The data were used to obtain spectral types, reddening coefficients, and emission line strengths; in addition, they are combined with IR broadband measurements out to 3.5 microns to provide bolometric luminosities and effective temperatures. H-R diagrams are presented for the Taurus-Auriga complex, Orion, NGC 2264, NGC 7000/IC 5070, and the Rho Ophiuci association. Some general conclusions are presented.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- December 1979
- DOI:
- 10.1086/190641
- Bibcode:
- 1979ApJS...41..743C
- Keywords:
-
- Main Sequence Stars;
- Stellar Evolution;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Astronomical Catalogs;
- Binary Stars;
- Emission Spectra;
- Hertzsprung-Russell Diagram;
- Infrared Astronomy;
- Line Spectra;
- Optical Scanners;
- Stellar Luminosity;
- Stellar Temperature;
- Astrophysics