SIMBAD references

1994A&A...287..175V - Astronomy and Astrophysics, volume 287, 175-178 (1994/7-1)

G191-B2B: accurate abundances for nitrogen, silicon, and iron from GHRS observations.

VIDAL-MADJAR A., ALLARD N.F., KOESTER D., LEMOINE M., FERLET R., BERTIN P., LALLEMENT R. and VAUCLAIR G.

Abstract (from CDS):

We present a new abundance analysis from high resolution GHRS spectra for 3 heavy elements showing spectral lines that are almost certainly of photospheric origin. The derived values (number abundances relative to hydrogen are 4±1.5x10–6 for N, 3±1.5x10–7 for Si, and 3±1.5x10–6 for Fe. These abundances are more accurate than previous values derived from IUE observations and can be used to provide constraints on the remaining and so far not unambiguously identified absorption in the EUV.

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Journal keyword(s): stars: white dwarfs - stars: individual: G 191-B2B - stars: abundances

Simbad objects: 1

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