Query : 2004A&A...417..283G

2004A&A...417..283G - Astronomy and Astrophysics, volume 417, 283-291 (2004/4-1)

A spectrophotometric study of RW Trianguli.


Abstract (from CDS):

On the basis of spectrophotometric observations we reconstruct the accretion disk of the eclipsing novalike cataclysmic variable RW Tri in the wavelength region 3600-7000Å. We find a radial temperature profile that is, on average, consistent with that expected on the basis of the theory of optically thick, steady state accretion disks and infer a mass-accretion rate in RW Tri of ∼10–8M/yr. The line emission is dominated by two areas: one around the hot-spot region and one near the white dwarf. Both emission regions have appreciable vertical extension, and seem to be decoupled from the velocity field in the disk. In our observations RW Tri shows a number of features that are characteristic of the SW Sex sub-class of novalike stars. The appearance of a novalike system as a UX UMa/RW Tri or SW Sex star seems to be mainly governed by the mass-transfer rate from the secondary at the time of observation.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - stars: binaries: eclipsing - stars: individual: RW Tri - stars: novae, cataclysmic variables

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 V* RW Tri CV* 02 25 36.1556820000 +28 05 50.891220600   13.50 12.50     M0V 294 0
2 V* UX UMa CV* 13 36 40.9531256400 +51 54 49.423353228   12.78 13.26     sdOB 508 0
3 V* GS Pav CV* 20 08 07.6210700448 -69 48 58.759918560 16.19 16.68 16.56     F5+sdB 22 0
4 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 765 0

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