2001A&A...380..533T


Query : 2001A&A...380..533T

2001A&A...380..533T - Astronomy and Astrophysics, volume 380, 533-543 (2001/12-3)

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

TAPPERT C., THORSTENSEN J.R., FENTON W.H., BENNERT N., SCHMIDTOBREICK L. and BIANCHINI A.

Abstract (from CDS):

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.

Abstract Copyright:

Journal keyword(s): stars: individual: CW 1045+525 - stars: novae, cataclysmic variables - stars: fundamental parameters - binaries: general

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* U Gem CV* 07 55 05.2323858391 +22 00 05.045435077   15.3 14.54     DA 1062 0
2 V* CH UMa CV* 10 07 00.7219578828 +67 32 47.507173639   15.97       ~ 107 0
3 V* LY UMa CV* 10 48 18.0061204292 +52 18 29.800872750   16.5 14.95     K 31 0
4 V* LS Peg CV* 21 51 57.9372002301 +14 06 53.267732979   11.89 12.10 12.18   ~ 83 0
5 GD 1662 CV* 23 29 00.4711137193 -29 46 45.980626470           OBe 147 0

    Equat.    Gal    SGal    Ecl

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2021.07.29-17:50:10

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