The Nova KT Eri Is a Recurrent Nova With a Recurrence Time-Scale of 40-50 Years

Bradley E. Schaefer, Frederick M. Walter, Rebekah Hounsell +1

KT Eridani was a very fast nova in 2009 peaking at V=5.42 mag. We marshal large data sets of photometry to finally work out the nature of KT Eri. From the TESS light curve, as conf…