Observations of the red-dwarf emission-line objects LP 101-15, BY Draconis, GT Pegasi, and FF Andromedae.
Abstract
Photoelectric UBVRI photometry of LP101-15, BY Dra, GT Peg, and FF And is presented, and implications with respect to the 'center-of-activity' model are discussed. This is apparently the most physically acceptable model to date; facular-like areas and flare activity are included in an attempt to explain all aspects of the behavior of this class of stars. Data for BY Dra and GT Peg are inconclusive at this time, but FF And can be fairly well understood in terms of the center-of-activity model. A slight secondary eclipse may have been detected for LP101-15, but verification is needed.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- February 1975
- DOI:
- 10.1086/129740
- Bibcode:
- 1975PASP...87..163M
- Keywords:
-
- Astronomical Models;
- Dwarf Stars;
- Emission Spectra;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Variable Stars;
- Eclipses;
- Electrophotometry;
- Error Analysis;
- Line Spectra;
- Astrophysics