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
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.