Abundances in planetary nebulae: NGC 6826

dc.contributor.author	Surendiranath, R
dc.contributor.author	Pottasch, S. R
dc.date.accessioned	2008-06-20T10:49:19Z
dc.date.available	2008-06-20T10:49:19Z
dc.date.issued	2008-05
dc.identifier.citation	A&A, Vol. 483, No. 2, pp. 519 - 527	en
dc.identifier.uri	http://hdl.handle.net/2248/2480
dc.description.abstract	Aims. We determine the chemical abundances and other parameters of the nebula NGC 6826 and its central star. Methods. We present new ISO spectra and combine them with archival IUE and optical spectra from the literature to get a complete, extinction-corrected, spectrum. The chemical composition of the nebula is then calculated in two ways, first by directly calculating and adding individual ion abundances, and second by building a model nebula that will reproduce the observed spectrum. Results. The results of these two methods are compared. In addition, we discuss the star exciting the nebula.	en
dc.format.extent	391194 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	EDP Sciences	en
dc.relation.uri	http://www.aanda.org/articles/aa/abs/2008/20/aa09380-08/aa09380-08.html	en
dc.subject	SM: abundances -- ISM	en
dc.subject	planetary nebulae: individual:	en
dc.subject	NGC 6826 -- infrared: ISM	en
dc.title	Abundances in planetary nebulae: NGC 6826	en
dc.type	Article	en