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- Title
A Spectroscopic Study of the Envelope of the Recurrent Nova CI Aquilae.
- Authors
Burlak, M. A.; Esipov, V. F.
- Abstract
Spectroscopic observations of the recurrent Nova CI Aq1 in the wavelength range 4000-11 000 Å are presented. Its evolution is traced is traced from maximum light to the disappearance of nebular lines. 〈E[sub B-V]〉 = 0.91 ± 0.11, as inferred from the Balmer decrement. The mean expansion velocity of the envelope measured near maximum light is 2800 km s[sup -1]. The helium in the Nova envelope has been found to be enhanced, 〈He/H〉 = 0.22. CI Aq1 is similar in spectral evolution, in change of the envelope expansion velocity, and in helium abundance to other recurrent novae.
- Subjects
NOVAE (Astronomy); CATACLYSMIC variable stars
- Publication
Astronomy Letters, 2001, Vol 27, Issue 9, p574
- ISSN
1063-7737
- Publication type
Article
- DOI
10.1134/1.1397739