Are Sakurai's object and Nova Aquilae 1919 recurrent outbursts of classical novae?

Details Are Sakurai's object and Nova Aquilae 1919 recurrent outbursts of classical novae? Are Sakurai's object and Nova Aquilae 1919 recurrent outbursts of classical novae?

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ap.....42..425r&link_type=abstract

Astrophysics, Volume 42, Issue 4, pp.425-430

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

It is proposed to interpret the outbursts of Nova Aquilae 1919 (V605 Aql) and the nova-like outburst of Sakurai’s object in 1996 as recurrent outbursts of classical novae of the DQ Her and RR Pic types with recurrence periods of about 1100 and 50,000 years, respectively, and some characteristics of these stars are derived on that basis. Only now has V605 Aql returned to the quiet state, and it has an absolute visual magnitude no fainter than 8m-9m. The orbital inclination of the prenova’s binary system is about 90°. The absolute visual magnitude of the prenova of V4334 Sgr is no brighter than 3m. It is quite possible that the orbital inclination of the prenova’s binary system is close to 0°. The expansion velocities of the shells are 30 40 km/sec in both cases. The structure of the ejection is conserved in the recurrent outbursts.

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