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| Paper: |
Evolution of Nova TrA 2008 into a High Mass-Accretion Rate Post-Nova |
| Volume: |
493, 19th European Workshop on White Dwarfs |
| Page: |
507 |
| Authors: |
Walter, F. M. |
| Abstract: |
NR TrA (Nova TrA 2008) was a normal slow Fe II novae for its first year of
evolution. During its third year eclipses appeared, and optical
spectra revealed the presence of hot permitted lines of C IV, N V, and O VI
in addition to the usual nebular lines. The light curve and spectra resemble
those of the V Sge stars.
The orbital period is 5.25 hours. The time-resolved spectra show a prominent
S-wave in the hot lines with an amplitude of about 100 km/s.
We conclude that the system is a CV with a high mass accretion rate that
has persisted for some 6 years after the explosion. |
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