FUSE Observational Evidence of the Boundary Layer of MV Lyrae in the High State
Abstract
We carry out a spectral analysis of the archival FUSE spectrum of the VY Scl novalike cataclysmic variable MV Lyrae obtained in the high state. We find that standard disk models fail to fit the flux in the shorter wavelengths of FUSE (λ < 950 Å). An improved fit is obtained by including a modeling of the boundary layer at the inner edge of the disk. The result of the modeling shows that in the high state the disk has a moderate accretion rate , a low inclination, a boundary layer with a temperature of ∼100,000 K, and size ∼0.20 Rwd, and the white dwarf is possibly heated up to a temperature T ≈ 50,000 K or higher.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- August 2011
- DOI:
- 10.1086/661773
- Bibcode:
- 2011PASP..123..903G