On the Progenitors of Galactic Novae

Details On the Progenitors of Galactic Novae On the Progenitors of Galactic Novae

2011-12-12

arxiv.org/abs/1112.2589v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

10 pages, 4 figures, accepted for publication in the Astrophysical Journal

Scientific paper

Of the approximately 400 known Galactic classical novae, only ten of them, the recurrent novae, have been seen to erupt more than once. At least eight of these recurrents are known to harbor evolved secondary stars, rather than the main sequence secondaries typical in classical novae. In this paper, we propose a new nova classification system, based solely on the evolutionary state of the secondary, and not (like the current schemes) based on the properties of the outbursts. Using archival optical and near-infrared photometric observations of a sample of thirty eight quiescent Galactic novae we show that the evolutionary state of the secondary star in a quiescent system can predicted and several objects are identified for follow-up observations; CI Aql, V2487 Oph, DI Lac and EU Sct.

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