CC Sculptoris: A superhumping intermediate polar

Abstract

We present high speed optical, spectroscopic and Swift X-ray observations made during the dwarf nova superoutburst of CC Scl in November 2011. An orbital period of 1.383 h and superhump period of 1.443 h were measured, but the principal new finding is that CC Scl is a previously unrecognised intermediate polar, with a white dwarf spin period of 389.49 s which is seen in both optical and Swift X-ray light curves only during the outburst. In this it closely resembles the old nova GK Per, but unlike the latter has one of the shortest orbital periods among intermediate polars.

Accepted for publication in MNRAS; 11 pages, 19 figures

References in corpus (1)

• Dwarf nova oscillations and quasi-periodic oscillations in cataclysmic variables -- VI. Spin rates, propellering, and coherence

Cited by in corpus (13)

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• High-speed photometry of faint cataclysmic variables - VIII. Targets from the Catalina Real-time Transient Survey
• XMM-Newton observations of eleven intermediate polars and possible candidates
• The Orbital Period vs. Absolute Magnitude Relationship of Intermediate Polars: Implications for Low States and Outbursts
• The Magnetospheric Boundary in Cataclysmic Variables
• Emission line tomography of the short period cataclysmic variables CC Scl and V2051 Oph
• Hubble Space Telescope Ultraviolet Light Curves Reveal Interesting Properties of CC Sculptoris and RZ Leonis
• CC Sculptoris: Eclipsing SU UMa-Type Intermediate Polar
• Long-term Periodicities of Cataclysmic Variables with Synoptic Surveys
• Bridging the Gap: OPTICAM Reveals the Hidden Spin of the WZ Sge Star GOTO 065054.49+593624.51
• UGPS J194310+183851: an Unusual Optical and X-ray Faint Cataclysmic Variable?