Volume 390, Number 2, August I 2002
|Page(s)||667 - 671|
|Published online||12 July 2002|
Deconstructing IRAS 07027–7934
Indian Institute of Astrophysics, Koramangala II Block, Bangalore – 560034, India
Corresponding author: email@example.com
Accepted: 27 May 2002
The planetary nebula IRAS 07027–7934 has a compact ionized core surrounded by a large cloud of matter believed to be of neutral gas and dust particles. A photoionization model of this ionized core is presented in this paper. The parameters Teff, , and distance of the central star along with the radius of the nebula are derived by photoionization modeling. The nebula is found to have a much lower electron temperature than was estimated earlier but the electron density is very high, in broad agreement with previous result. The abundances derived for the first time point to a C/O ratio of > 5 for the nebula, and the internal extinction caused by the ionized core, , is 2.
Key words: planetary nebulae: individual: IRAS 07027–7934 / planetary nebulae: photoionization modeling / stars: WC 11
© ESO, 2002
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