Study of the ultraviolet absorptions in the spectra of DA white dwarfs. Semiannual Report, 1 April-30 September 1985

Technical Report · Sun Jun 01 04:00:00 EDT 1986

OSTI ID:7158789

Wegner, G A

Systematic investigations of the ultraviolet spectra of the hydrogen-rich white dwarfs were conducted with the International Ultraviolet Explorer satellite (IUE). This is to follow up on the work reported in Nelan and Wegner (1985) that the strong absorptions found earlier near lambda lambda 1600 and 1400 (cf. Greenstein 1980; Wegner 1982 and 1984, b) in the spectra of the cooler DA are absorptions produced by the H2 and H2(+) quasi-molecules. Observations of new DA white dwarfs obtained with the IUE are summarized.

• Research Organization: Dartmouth Coll., Hanover, NH (USA)
• OSTI ID: 7158789
• Report Number(s): N-86-28038; NASA-CR-177276
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
DWARF STARS
ELEMENTS
ENERGY LEVELS
ENERGY SPECTRA
HYDROGEN
MATHEMATICAL MODELS
NONMETALS
SPECTRA
STAR MODELS
STARS
ULTRAVIOLET SPECTRA
WHITE DWARF STARS