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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2008
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57144113 |
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| _version_ | 1866817199608430592 |
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| author | C. Morisset |
| author_facet | C. Morisset |
| contents | An atlas of synthetic line profiles of planetary nebulae C. Morisset G. Stasi¿ska Física, Astronomía y Matemáticas turbulence line: proles methods: numerical planetary nebulae: general We have constructed a grid of photoionization models of spherical, ellipticaland bipolar planetary nebulae. Assuming different velocity fields, we have computedline profiles corresponding to different orientations, slit sizes and positions. Theatlas is meant both for didactic purposes and for the interpretation of data on realnebulae. As an application, we have shown that line profiles are often degenerate,and that recovering the geometry and velocity field from observations requires linesfrom ions with different masses and different ionization potentials. We have alsoshown that the empirical way to measure mass-weighted expansion velocities fromobserved line widths is reasonably accurate if considering the HWHM. For distantnebulae, entirely covered by the slit, the unknown geometry and orientation donot alter the measured velocities statistically. The atlas is freely accessible frominternet. The Cloudy 3D suite and the associated VISNEB tool are available onrequest. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57144113 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.44 |
| format | Artículo científico |
| id | redalyc_57144113 |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | An atlas of synthetic line profiles of planetary nebulae C. Morisset Física, Astronomía y Matemáticas turbulence line: proles methods: numerical planetary nebulae: general An atlas of synthetic line profiles of planetary nebulae C. Morisset G. Stasi¿ska Física, Astronomía y Matemáticas turbulence line: proles methods: numerical planetary nebulae: general We have constructed a grid of photoionization models of spherical, ellipticaland bipolar planetary nebulae. Assuming different velocity fields, we have computedline profiles corresponding to different orientations, slit sizes and positions. Theatlas is meant both for didactic purposes and for the interpretation of data on realnebulae. As an application, we have shown that line profiles are often degenerate,and that recovering the geometry and velocity field from observations requires linesfrom ions with different masses and different ionization potentials. We have alsoshown that the empirical way to measure mass-weighted expansion velocities fromobserved line widths is reasonably accurate if considering the HWHM. For distantnebulae, entirely covered by the slit, the unknown geometry and orientation donot alter the measured velocities statistically. The atlas is freely accessible frominternet. The Cloudy 3D suite and the associated VISNEB tool are available onrequest. 2008 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57144113 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.44 |
| title | An atlas of synthetic line profiles of planetary nebulae |
| topic | Física, Astronomía y Matemáticas turbulence line: proles methods: numerical planetary nebulae: general |
| url | https://www.redalyc.org/articulo.oa?id=57144113 |