Volume 397, Number 3, January III 2003
|Page(s)||951 - 959|
|Section||Stellar structure and evolution|
|Published online||21 January 2003|
Modelling the recurrent nova CI Aql in quiescence
Institut für Astrophysik der Leopold–Franzens–Universität Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria
Corresponding author: S. Kimeswenger, firstname.lastname@example.org
Accepted: 30 September 2002
We present detailed photometric investigations of the recurrent nova CI Aql. New data obtained after the 2000 outburst are used to derive a 3D geometrical model of the system. The resulting light curves clearly indicate the existence of an asymmetric spray around the accretion disk, as claimed in the past e.g. for the super-soft X-ray source CAL87 in the LMC. The simulated light curves give us the mass transfer rates varying from in 1991–1996 to in 2001/2002. The distance and the interstellar foreground extinction resulting from the model are 1.55 kpc and respectively. During fast photometry sequences in 2002 short timescale variations ( min) of the mass loss are found. Moreover a change in the orbital period of the system is detectable and results in a mass loss of during the nova explosion.
Key words: stars: individual: CI Aql / stars: novae, cataclysmic variables / accretion, accretion disks / binaries: eclipsing
© ESO, 2003
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