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| Paper: |
Observation and Light Curve Analysis of Three Eclipsing Dwarf Novae |
| Volume: |
496, Living Together: Planets, Host Stars and Binaries |
| Page: |
231 |
| Authors: |
Golysheva, P.; Shugarov, S.; Katysheva, N.; Khruzina, T. |
| Abstract: |
We present the results of our photometric observations of the
eclipsing dwarf novae V1239 Her, V2051 Oph, and EX Dra
in quiescence. All light curves exhibit a deep main eclipse,
a depression near the secondary minimum, and a hump before
the eclipses. However, the light curves can vary from
cycle to cycle. We have improved
the orbital period of V1239 Her using the O–C
diagram over a long time interval.
The combined “hot line + hot spot” model was used to
analyze the light curves of V1239 Her.
Some physical and geometrical parameters of the components, such as the
temperature of inner and outer disk and the hot spot, have been derived. |
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