Cyclical period changes in the dwarf novae V2051 Oph and V4140 Sgr

We report on the identification of cyclical changes in the orbital period of the eclipsing dwarf novae V2051 Ophiuchi and V4140 Sagittarii. We used sets of white dwarf mid-eclipse timings to construct observed-minus-calculated diagrams covering, respectively, 25 and 16 yr of observations. The V2051...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2003-11, Vol.345 (3), p.889-896
Hauptverfasser:	Baptista, R., Borges, B. W., Bond, H. E., Jablonski, F., Steiner, J. E., Grauer, A. D.
Format:	Artikel
Sprache:	eng
Schlagworte:	accretion accretion discs accretion, accretion discs binaries: eclipsing stars: dwarf novae stars: evolution stars: individual: V2051 Oph stars: individual: V4140 Sgr
Online-Zugang:	Volltext
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