Deconstructing IRAS 07027-7934

Details Deconstructing IRAS 07027-7934 Deconstructing IRAS 07027-7934

Aug 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...390..667s&link_type=abstract

Astronomy and Astrophysics, v.390, p.667-671 (2002)

Astronomy and Astrophysics

Astrophysics

2

Planetary Nebulae: Individual: Iras 07027-7934, Planetary Nebulae: Photoionization Modeling, Stars: Wc 11

Scientific paper

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 T_eff, R*, 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, E(B-V), is 2.

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