Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pasp...90..706m&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 90, Dec. 1978-Jan. 1979, p. 706-710.
Astronomy and Astrophysics
Astronomy
5
Algol, Eclipsing Binary Stars, Electrophotometry, Orbital Elements, Stellar Spectrophotometry, Stellar Mass Accretion, Stellar Mass Ejection, Stellar Radiation
Scientific paper
A photoelectric observation of minimum light for Algol is reported: JD 2443565.5785 (visual) and JD 2443565.5802 (blue). The times of minima obtained between 1964 and 1978 indicate that a period decrease may have occurred about 1975. It is suggested that this period change, as well as the radio and X-ray activity and spectroscopic anomalies observed during 1975, may have been due to a mass-transfer event that occurred around that time.
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