论文信息 - Observational Evidence for Large-Scale Spot Activity on the Primary Component of XY Ursae Majoris

Observational Evidence for Large-Scale Spot Activity on the Primary Component of XY Ursae Majoris

Extensive peand spectroscopic observations of the short period eclipsing binary XY UMa within the last four years confirm the star spot and stellar activity model/ which was presented in 1975.

E. Geyer

[1] E. Geyer,et al. A polarimetric investigation of the eclipsing binary XY ursae majoris , 1977 .

[2] E. Geyer. Remarks on erratic period fluctuations of detached close binaries and the constancy of the orbital period of XY UMa , 1977 .

[3] H. N. Russell. On the light variations of asteroids and satellites , 1906 .