The Enigmatic Behaviour of the Old Nova RR Pic

Details The Enigmatic Behaviour of the Old Nova RR Pic The Enigmatic Behaviour of the Old Nova RR Pic

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap%26ss.304..303s&link_type=abstract

Astrophysics and Space Science, Volume 304, Issue 1-4, pp. 303-305

Astronomy and Astrophysics

Astrophysics

2

Novae, Cataclysmic Variables, Accretion Discs

Scientific paper

We report preliminary results of an observing run at the 1--m telescope at CTIO during which we followed RR Pic over several nights in February 2005. The resulting light curves show no sign of an eclipse. Apart from the 3.48 h period, which is usually interpreted as the orbital one, we find an additional period at P=3.78 h, which we interpret as the superhump period of the system. We furthermore present high resolution Doppler maps in Hα, Hβ and He II, which we derived from observations at the NTT, La Silla in February 2004. They show strong variations in the emission distribution from one day to the next. While Hα and Hβ emission clearly show the accretion disc with some additional isolated sources, the He II emission is confined to an elongated region at low velocities.

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