Photometric observations of the Algol variable V 505 Sagittarii

Details Photometric observations of the Algol variable V 505 Sagittarii Photometric observations of the Algol variable V 505 Sagittarii

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26as...46..263w&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 46, Nov. 1981, p. 263-275.

Astronomy and Astrophysics

Astrophysics

6

Eclipsing Binary Stars, Light Curve, Sagittarius Constellation, Stellar Magnitude, Stellar Spectrophotometry, Variable Stars, Angular Momentum, Brightness, Mass Transfer, Subgiant Stars, Tables (Data)

Scientific paper

Photometric measurements of the bright Algol variable system V 505 Sagittarii obtained between 1973 and 1979 are presented. Observations in the B and V bands from the steepest parts of the descending and ascending branches of the primary eclipse are used to obtain the times of five primary minima with full certainty, and two times with less certainty. The period is observed to show only small variations, suggesting a low state of mass transfer from the subgiant to the primary, where a temporary storage of angular momentum takes place, during the years 1968-1976, although the minima observed in 1978 and 1979 deviate from the predicted relation. Mean light curves are derived for the 1972-1976 observations, and deviations of individual observations are noted.

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