Is the DA white dwarf 1910 + 047 a soft X-ray source?

Details Is the DA white dwarf 1910 + 047 a soft X-ray source? Is the DA white dwarf 1910 + 047 a soft X-ray source?

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...361l..65v&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 361, Oct. 1, 1990, p. L65-L68.

Astronomy and Astrophysics

Astrophysics

3

Spectrum Analysis, Stellar Spectra, White Dwarf Stars, X Ray Sources, Atmospheric Models, Emission Spectra, Stellar Atmospheres

Scientific paper

The possibility that the recently discovered DA white dwarf WD 1910 + 047 might be an Einstein soft X-ray source is studied, applying a complete model atmosphere analyis to both the optical and the soft X-ray data. It is found that the X-ray source in question is at least one order of magnitude too strong to be compatible with the estimated atmospheric parameters of the possible optical counterpart. The spatial coincidence between the two, however, remains extremely intriguing and has left us with the dilemma of accepting the relatively improbable coincidence of two unrelated objects or rejoicing over the discovery of a highly unusual one.

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