| Issue |
A&A
Volume 390, Number 2, August I 2002
|
|
|---|---|---|
| Page(s) | 667 - 671 | |
| Section | The Sun | |
| DOI | https://doi.org/10.1051/0004-6361:20020774 | |
| Published online | 12 July 2002 | |
Deconstructing IRAS 07027–7934
Indian Institute of Astrophysics, Koramangala II Block, Bangalore – 560034, India
Corresponding author: nath@iiap.ernet.in
Received:
13
March
2002
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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