IM Normae: The Death Spiral of a Cataclysmic Variable?
IM Normae: The Death Spiral of a Cataclysmic Variable?
Abstract We present a study of the orbital light curves of the recurrent nova IM Normae since its 2002 outburst. The broad “eclipses” recur with a 2.46 hr period, which increases on a timescale of 1.28(16) × 10 6 yr. Under the assumption of conservative mass transfer, this suggests a …