The light and colour curve of the periodic variation of SCO X-1 /V 818 Sco/

Details The light and colour curve of the periodic variation of SCO X-1 /V 818 Sco/ The light and colour curve of the periodic variation of SCO X-1 /V 818 Sco/

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26as...28..119v&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 28, May 1977, p. 119-121.

Astronomy and Astrophysics

Astrophysics

5

Light Curve, Periodic Variations, Variable Stars, X Ray Stars, Stellar Luminosity, Tables (Data), Ubv Spectra

Scientific paper

A mean light and color curve for the periodic variation of Sco X-1, based on a few hundred photoelectric observations, is presented. These observations were made in 1971, 1972, and 1973. The light curve has the same shape as that of Wright et al. (1975). The V-B(Walraven system) color curve, which has an amplitude of 0.015 magnitude, must be considered as not yet firmly established. The star becomes bluer when it is brightest.

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