SIMBAD references

2009CoAst.159..107Z - Com. in Asteroseismology, 159, 107 (2009/March-0)

UV spectroscopy of the hybrid PG 1159-type central stars of the planetary nebulae NGC 7094 and Abell 43.

ZIEGLER M., RAUCH T., WERNER K., KOESTERKE L. and KRUK J.W.

Abstract (from CDS):

Hydrogen-deficient post-AGB stars have experienced a late helium-shell flash that mixes the hydrogen-rich envelope and the helium-rich intershell. The amount of hydrogen remaining in the stellar envelope depends on the particular moment when this late thermal pulse occurs.

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 2

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