Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987dchn.rept.....w&link_type=abstract
Semiannual Report, 1 Jan. - 30 Jun. 1987 Dartmouth Coll., Hanover, NH. Dept. of Physics and Astronomy.
Astronomy and Astrophysics
Astronomy
Faint Objects, Magnetic Stars, Ultraviolet Astronomy, Ultraviolet Spectra, White Dwarf Stars, Cataclysmic Variables, Iue, Stellar Magnetic Fields
Scientific paper
Low resolution International Ultraviolet Explorer (IUE) spectroscopic observations of two magnetic white dwarfs BPM25114 and K813-14 were obtained using both the SWP and LWP cameras. The first object has an observed magnetic field of 4 x 10(7) Gauss and the second has one of 3 x 10(7) Gauss. Both objects have overall spectral energy distributions appropriate for cool DA white dwarfs with T(eff) near 10,000 K and accordingly show strong lambda lambda 1400 and 1600 absorption in their spectra. Compared to non-magnetic DA white dwarfs of comparable effective temperature, there are some differences in the profiles, presumably produced by the magnetic fields in these objects. In addition, the ultraviolet spectra of a number of hot subluminous stars in the Kiso Schmidt survey were observed.
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