Analysis of white dwarf Lyman alpha profiles

Details Analysis of white dwarf Lyman alpha profiles Analysis of white dwarf Lyman alpha profiles

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..285h&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 285-288 (SEE N85-20961 1

Astronomy and Astrophysics

Astronomy

2

Astronomical Photography, Lyman Alpha Radiation, Spectrum Analysis, Stellar Spectra, White Dwarf Stars, Cameras, Gravitation, Images, Stellar Temperature, Voyager Project

Scientific paper

Through the use of a doubly exposed large and small aperture short wavelength prime image it is possible to obtain Lyman alpha profiles for white dwarfs which are relatively free from geocoronal Lyman alpha contamination. For DA white dwarfs the analysis of both wings of these broad profiles yields well-determined temperatures and useful constraints upon surface gravity. Two examples of such an analysis are discussed, and the results compared with temperatures determined from Voyager far UV (912-1150 A) fluxes.

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