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astro-ph2007★ 7 cited
EM Cygni: a study of its eclipse timings
Sz. Csizmadia, Zs. Nagy, T. Borkovits +3
EM Cygni is a Z Cam-subtype eclipsing dwarf nova. Its orbital period variations were reported in the past but the results were in conflict to each other while other studies allowed…
astro-ph2005
Indirect evidence for short period magnetic cycles in W UMa stars
T. Borkovits, M. M. Elkhateeb, Sz. Csizmadia +4
Complex period variations of five W UMa type binaries (AB And, OO Aql, DK Cyg, V566 Oph, U Peg) were investigated by analyzing their O--C diagrams, and several common features were…