UBVRI photometry of variable red dwarf emission objects

Details UBVRI photometry of variable red dwarf emission objects UBVRI photometry of variable red dwarf emission objects

May 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974phdt.........6m&link_type=abstract

Ph.D. Thesis Florida Univ., Gainesville.

Astronomy and Astrophysics

Astronomy

1

Astronomical Photometry, Dwarf Stars, Variable Stars, Data Acquisition, Electrophotometers, Line Spectra, Statistical Analysis

Scientific paper

A review of the history and nature of small scale variability of red dwarf emission line stars is presented. This discussion is accompanied by a description of equipment developed for the purpose of expediting data acquisition for photoelectric photometry of faint stars. Data obtained at the Kitt Peak National Observatory, the Lowell Observatory, and the Rosemary Hill Observatory of the University of Florida are tabulated and analyzed to determine their implications with respect to the known variability of four stars. BY Draconis, GT Pegasus, FF Andromeda, and LP101-15 (an eclipsing binary) are studied. LP101-15 and BY Draconis were observed on the Johnson UBVRI system at Kitt Peak while BY Draconis, GT Pegasus, and FF Andromeda were observed on the Johnson RI system at the Lowell Observatory. UBVR observations were carried out on all four objects at Rosemary Hill Observatory since the spring of 1972.

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