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Far ultraviolet spectroscopy of (non-magnetic) cataclysmic variables

Long, Knox S

Advances in Space Research, 2006, Vol.38(12), pp.2827-2831 [Peer Reviewed Journal]

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  • Title:
    Far ultraviolet spectroscopy of (non-magnetic) cataclysmic variables
  • Author: Long, Knox S
  • Description: HST and FUSE have provided high signal-to-noise, high-resolution spectra of a variety of cataclysmic variables and have allowed a detailed characterization of FUV emission sources in both high and low states. Here, I describe how this has advanced our understanding of non-magnetic CVs. In the high state, the FUV spectra are dominated by disk emission that is modified by scattering in high and low velocity material located above the disk photosphere. Progress is being made towards reproducing the high-state spectra using kinematic prescriptions of the velocity field and new ionization and radiative transfer codes. In conjunction with hydrodynamical simulations of the outflows, accurate estimates of the mass loss rates and determination of the launching mechanism are likely forthcoming. In quiescence, the FUV spectra reveal contributions from the WD and the disk. Quantitative analyses have lead to solid measurements of the temperatures and abundances of a number of WDs in...
  • Is Part Of: Advances in Space Research, 2006, Vol.38(12), pp.2827-2831
  • Identifier: ISSN: 0273-1177 ; E-ISSN: 1879-1948 ; DOI: 10.1016/j.asr.2005.10.057
  • Subjects: Accretion Disks ; Cataclysmic Variables ; Dwarf Novae ; White Dwarf ; Accretion Disks ; Cataclysmic Variables ; Dwarf Novae ; White Dwarf ; Engineering ; Astronomy & Astrophysics ; Physics
  • Language: English

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