Chemical compositions and plasma parameters of planetary nebulae with Wolf-Rayet and wels type central stars
| hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
| hal.structure.identifier | Observatoire aquitain des sciences de l'univers [OASU] | |
| hal.structure.identifier | Observatoire astronomique de Strasbourg [OAS] | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | GIRARD, Pascal | |
| hal.structure.identifier | Observatoire astronomique de Strasbourg [OAS] | |
| hal.structure.identifier | Institut für Theoretische Physik und Astrophysik [Kiel] [ITAP] | |
| hal.structure.identifier | International Space University | |
| dc.contributor.author | KOPPEN, J. | |
| hal.structure.identifier | Observatoire astronomique de Strasbourg [OAS] | |
| dc.contributor.author | ACKER, A. | |
| dc.date.created | 2007 | |
| dc.date.issued | 2007 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | Aims: Chemical compositions and other properties of planetary nebulae around central stars of spectral types [WC], [WO], and wels are compared with those of `normal' central stars, in order to clarify the evolutionary status of each type and their interrelation. Methods: We use plasma diagnostics to derive from optical spectra the plasma parameters and chemical compositions of 48 planetary nebulae. We also reanalyze the published spectra of a sample of 167 non-WR PN. The results as well as the observational data are compared in detail with those from other studies of the objects in common. Results: The central star's spectral type is clearly correlated with electron density, temperature and excitation class of the nebula, [WC] nebulae tend to be smaller than the other types. All this corroborates the view of an evolutionary sequence from cool [WC 11] central stars inside dense, low excitation nebulae towards hot [WO 1] stars with low density, high excitation nebulae. The wels PN, however, appear to be a separate class of objects, not linked to WRPN by evolution, --abridged-- | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.title.en | Chemical compositions and plasma parameters of planetary nebulae with Wolf-Rayet and wels type central stars | |
| dc.type | Article de revue | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph] | |
| dc.identifier.arxiv | astro-ph/0611149 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.page | 265-274 | |
| bordeaux.volume | 463 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00119849 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00119849v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2007&rft.volume=463&rft.spage=265-274&rft.epage=265-274&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=GIRARD,%20Pascal&KOPPEN,%20J.&ACKER,%20A.&rft.genre=article |
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