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2011MNRAS.417.2440H - Mon. Not. R. Astron. Soc., 417, 2440-2464 (2011/November-2)
The winds of hydrogen-rich central stars of planetary nebulae.
HERALD J.E. and BIANCHI L.
Abstract (from CDS):
We also find interesting results for some individual stars. NGC 1360 (Teff ≃ 105 kK) displays the signature of a (previously undetected) weak stellar wind in its O VI 1032, 38 profile, and probably has the lowest mass-loss rate ({dot}M ≲ 1 x 10–10 M☉/yr) of any known CSPN. In contrast, we find the wind terminal velocity of NGC 2392 ( Teff ≃ 45 kK) to be v∞ ≃ 300 km/s, one of the slowest CSPN wind known, probably related to its subsolar metallicity. We have included in the model calculations many elements and high-ionization species previously neglected in analyses of this type, providing additional wind diagnostics such as Ne VIIλ973 and Ar VIIλ1064. The effects of including these as well as other line-blanketing elements are discussed.
Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS
Journal keyword(s): stars: abundances - stars: AGB and post-AGB - stars: atmospheres - white dwarfs - planetary nebulae: general - ultraviolet: stars
Simbad objects: 21
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