Area scanner and conventional photometry of the visual binary AP-system HD 11502/3 /Gamma Arietis/

Details Area scanner and conventional photometry of the visual binary AP-system HD 11502/3 /Gamma Arietis/ Area scanner and conventional photometry of the visual binary AP-system HD 11502/3 /Gamma Arietis/

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....69..103m&link_type=abstract

Astronomy and Astrophysics, vol. 69, no. 1, Sept. 1978, p. 103-112. Research supported by the Oesterreichischer Fonds zur Foerd

Astronomy and Astrophysics

Astrophysics

5

A Stars, Binary Stars, Light Emission, Stellar Spectrophotometry, Electrophotometry, Light Curve, Periodic Variations, Ubv Spectra

Scientific paper

Time-resolved intermediate-band differential photometry of the two components of the visual Ap binary Gamma Ari is presented. It is shown that the peculiar southern component HD 11503 emits more flux in the spectral region covered than does its earlier-type companion. Unsuccessful attempts to redetermine the photometric period reveal that the period of HD 11503 might not be strictly constant. The elements of the possible mean light variation of HD 11503 are computed.

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