Abundances in planetary nebulae: Me 2-1

R. Surendiranath; S. R. Pottasch; P. García-Lario

doi:doi:10.1051/0004-6361:20047041

Free Access

Issue		A&A Volume 421, Number 3, July III 2004


Page(s)		1051 - 1061
Section		Interstellar and circumstellar matter
DOI		https://doi.org/10.1051/0004-6361:20047041
Published online		29 June 2004

A&A 421, 1051-1061 (2004)

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

Corresponding author: R. Surendiranath, nath@iiap.res.in

Received: 9 January 2004
Accepted: 16 March 2004

Abstract

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

Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, The Netherlands and the UK) and with the participation of ISAS and NASA. This research has also used archival IUE and HST data.

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Tables [see full text] and [see full text] are only available in electronic form at http://www.edpsciences.org

© ESO, 2004

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Abundances in planetary nebulae: Me 2-1 *,**

Abundances in planetary nebulae: Me 2-1 ^*,^**