A quantitative analysis of the prototype [WCL] star CPD-56° 8032

Details A quantitative analysis of the prototype [WCL] star CPD-56° 8032 A quantitative analysis of the prototype [WCL] star CPD-56° 8032

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.238..119c&link_type=abstract

Astrophysics and Space Science, Volume 238, Issue 1, pp.119-123

Astronomy and Astrophysics

Astrophysics

1

Stars: Wolf-Rayet, Mass Loss, Atmospheres-Planetary Nebulae: Individual

Scientific paper

We present a detailed, quantitative study of the standard [WC10] Wolf-Rayet central star CPD-56o 8032 based on new high resolution AAT UCLES observations and the Hillier (1990) WR standard model. Our analysis of CPD-56o 8032 gives the wind properties (T *=34500K, lg (L/L &sun;)=3.8, lg (M/M &sun;a-1)=-5.4,v ∞=225 km s-1) and chemistry (C/He=0.5, O/He=0.1, by number), the latter suggesting an intimate relationship with the O vi PN central stars and the PG 1159-035 objects. A comparison between the wind properties of CPD-56o 8032 and Sk-66o 40 (WN 10) indicates that low excitation, low wind velocity WR winds are common to both low mass PN central stars (WC sequence) and high mass post-LBV's (WN sequence).

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