The cataclysmic variable CW 1045+525: A secondary-dominated dwarf nova?

Tappert C.; THORSTENSEN, JR; Fenton, WH; Bennert, N; Schmidtobreick L.; Bianchini, A

Abstract

We present spectroscopic and photometric observations of the cataclysmic variable CW 1045+525. Both the optical spectrum and the photometric lightcurve show a strong contribution of a K5V-M0V secondary. We derive an orbital period Porb = 0.271278(1) d by measuring the radial velocities of the absorption lines of the secondary. The period and spectral type of the secondary suggest a distance of 350-700 pc. There is evidence for additional sources of line- and continuum emission, but no direct evidence of an accretion disc. We discuss several scenarios for the nature of CW 1045+525 on the basis of our results, finding a dwarf nova classification to be the most probable, although not completely satisfying, explanation for the observed characteristics.

Más información

Título según WOS: The cataclysmic variable CW 1045+525: A secondary-dominated dwarf nova?
Título según SCOPUS: The cataclysmic variable CW 1045+525: A secondary-dominated dwarf nova?
Título de la Revista: ASTRONOMY & ASTROPHYSICS
Volumen: 380
Número: 2
Editorial: EDP SCIENCES S A
Fecha de publicación: 2001
Página de inicio: 533
Página final: 543
Idioma: English
URL: http://www.edpsciences.org/10.1051/0004-6361:20011441
DOI:

10.1051/0004-6361:20011441

Notas: ISI, SCOPUS