EDP Sciences
Free access
Volume 421, Number 3, July III 2004
Page(s) 1051 - 1061
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20047041

A&A 421, 1051-1061 (2004)
DOI: 10.1051/0004-6361:20047041

Abundances in planetary nebulae: Me 2-1

R. Surendiranath1, S. R. Pottasch2 and P. García-Lario3

1  Indian Institute of Astrophysics, Koramangala II Block, Bangalore - 560034, India
2  Kapteyn Astronomical Institute, PO Box 800, 9700 AV Groningen, The Netherlands
3  ISO Data Centre, Science Operations and Data Systems Division, Research and Scientific Support Department of ESA, Villafranca del Castillo, Apartado de Correos 50727, 28080 Madrid, Spain

(Received 9 January 2004 / Accepted 16 March 2004)

ISO and IUE spectra of the round planetary nebula Me 2-1 are combined with visual spectra taken from the literature to obtain for the first time a complete extinction-corrected spectrum. With this, the physico-chemical characteristics of the nebula and its central star are determined by various methods including photoionization modeling using Cloudy. The results of the modeling are compared to those derived from a more classical, simple abundance determination approach. A discussion is presented on the validity of the different methods used and assumptions made. Finally, the main results are interpreted in terms of the evolutionary stage of Me 2-1   and its central star.

Key words: ISM: abundances -- planetary nebulae: individual: Me 2-1 -- infrared: ISM -- ISM: lines and bands

Offprint request: R. Surendiranath, nath@iiap.res.in

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