High-speed photometry of the Recurrent Nova IM Normae

Abstract

The recurrent nova IM Nor is found to have an orbital period of 2.462 h, shown by periodic dips in brightness. This is only the second recurrent nova known to have such a short period. We interpret the light curve as largely produced by a reflection effect from the heated face of the secondary star, probably with addition of a partial eclipse of the accretion disc.

3 pages, 2 figures; accepted for publication in MNRAS

References in corpus (3)

• High speed photometry of faint Cataclysmic Variables: III. V842 Cen, BY Cir, DD Cir, TV Crv, V655 CrA, CP Cru, V794 Oph, V992 Sco, EU Sct and V373 Sct
• Modelling the Recurrent Nova CI Aql in Quiescence
• General Properties of Quiescent Novae

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• SDSSJ001153.08-064739.2, a cataclysmic variable with an evolved donor in the period gap
• Nova V5116 Sgr and searching for superhumps in nova remnants
• V1494 Aql: Eclipsing Fast Nova with an Unusual Orbital Light Curve
• Chandra observations of the recurrent nova IM Nor
• Orbital Period Changes for Fourteen Novae and the Critical Failures of the Predictions of Standard Theories, the Hibernation Model, and the Magnetic Braking Model
• On the Possibility of V4444 Sgr as a Recurrent Nova