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Optical Light Curve of Nova KT Eridani

Published online by Cambridge University Press:  21 February 2013

W. P. Chen ,
L. W. Hung  and
Fred Walter
W. P. Chen
Affiliation:
Graduate Institute of Astronomy, National Central University, Taiwan email: wchen@astro.ncu.edu.tw
L. W. Hung
Affiliation:
Graduate Institute of Astronomy, National Central University, Taiwan email: wchen@astro.ncu.edu.tw
Fred Walter
Affiliation:
Dept. of Physics and Astronomy, Stony Brook University, USA
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Abstract

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We present the optical light curve of the very fast nova, KT Eridani, from its outburst in November 2009 to quiescence in 2012. Comparison of our data with the 24-hour monitoring by Swift on 2010 March 31 indicates a possible anticorrelation between the X-ray and optical emissions. A period of 57 d is found in the long-term optical light curve, which we interpret as the orbital modulation of the hot spot on the white dwarf disk accreting material from an early K-type giant. Our study lends support to the notation that KT Eri may be a recurrent nova.

Keywords

Accretion disksbinaries: closenovaewhite dwarfsX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 191 - 192
Copyright
Copyright © International Astronomical Union 2013

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