New observations of six RV Tauri and SRd variable stars

Details New observations of six RV Tauri and SRd variable stars New observations of six RV Tauri and SRd variable stars

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95..427d&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 95, July 1983, p. 427-432.

Other

2

Electrophotometry, Light Curve, Stellar Spectrophotometry, Taurus Constellation, Variable Stars, Late Stars, Stellar Luminosity, Ubv Spectra

Scientific paper

Differential photoelectric observations in the b and y filters of the four-color system have been obtained of five known or questionable RV Tau variable stars and one SRd variable, using the 1.2-meter telescope at Cloudcroft Observatory. These observations spanned roughly 180 days for TT Oph and V564 Oph, with 40 to 50 observations each (every fourth night on the average). The other four stars, (TX Aql, DW Peg, EI Peg, and Z Sex) were all observed an average of 13 nights, spanning roughly 100 nights. One to three cycles were covered for each star. V564 Oph displayed an unusual asymmetric deep minimum in its light curve. TT Oph has adhered closely to its light elements (61.08 d) over the past 43 years.

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