Detection of a new white-dwarf binary system in the extreme ultraviolet using the ROSAT Wide Field Camera

Details Detection of a new white-dwarf binary system in the extreme ultraviolet using the ROSAT Wide Field Camera Detection of a new white-dwarf binary system in the extreme ultraviolet using the ROSAT Wide Field Camera

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.355...61c&link_type=abstract

Nature (ISSN 0028-0836), vol. 355, Jan. 2, 1992, p. 61-63.

Computer Science

31

Binary Stars, Rosat Mission, Stellar Evolution, White Dwarf Stars, Extreme Ultraviolet Radiation, Main Sequence Stars, Stellar Atmospheres, Stellar Composition

Scientific paper

The Wide Field Camera on the Rosat satellite has detected a new white dwarf star as a bright EUV source; within the 1-arcmin error box of the EUV source is noted to lie an unusually blue star which is found to be a DA white dwarf/dM2-dM5 classification-range cool companion-comprising binary system. Similarities are noted between the features of this object and those of the Feige 24 binary system. EUV emission spectral differences between the white-dwarf binary and Feige 24 are attributable to discrepant atmospheric compositions.

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