Planetary nebulae results from the infrared space observatory
Fuente:
Redalyc
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidad Nacional Autónoma de México
2002
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1876429931315986432 |
|---|---|
| author | S. W. J. Colgan |
| author_facet | S. W. J. Colgan |
| contents | Planetary nebulae results from the infrared space observatory S. W. J. Colgan A. Liao J. P. Harrington R. H. Rubin R. J. Dufour Física, Astronomía y Matemáticas ISM: STRUCTURE PLANETARY NEBULAE: GENERAL Observations with the Infrared Space Observatory (ISO) provide a means to assess important properties of theplasma in gaseous nebulae, including planetary nebulae (PNs). We present some results for average electrondensities that have been determined from the ux ratios of several ne-structure, infrared emission lines.Because the ISO spectroscopic aperture was always at least as large as 14 00 2000, these represent macroscopicmeasurements for our sample of PNs. We nd some instances of the observed line ux ratio being clearly out ofrange of the theoretical predictions using current atomic data. In these cases, the ISO data cannot presently beused with these atomic data to derive electron density, but rather provide direction for needed improvementsin the atomic collision strengths. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57112037 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) Vol.12 |
| format | Artículo científico |
| id | redalyc_57112037 |
| institution | Redalyc |
| language | en |
| publishDate | 2002 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Planetary nebulae results from the infrared space observatory S. W. J. Colgan Física, Astronomía y Matemáticas ISM: STRUCTURE PLANETARY NEBULAE: GENERAL Planetary nebulae results from the infrared space observatory S. W. J. Colgan A. Liao J. P. Harrington R. H. Rubin R. J. Dufour Física, Astronomía y Matemáticas ISM: STRUCTURE PLANETARY NEBULAE: GENERAL Observations with the Infrared Space Observatory (ISO) provide a means to assess important properties of theplasma in gaseous nebulae, including planetary nebulae (PNs). We present some results for average electrondensities that have been determined from the ux ratios of several ne-structure, infrared emission lines.Because the ISO spectroscopic aperture was always at least as large as 14 00 2000, these represent macroscopicmeasurements for our sample of PNs. We nd some instances of the observed line ux ratio being clearly out ofrange of the theoretical predictions using current atomic data. In these cases, the ISO data cannot presently beused with these atomic data to derive electron density, but rather provide direction for needed improvementsin the atomic collision strengths. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57112037 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) Vol.12 |
| title | Planetary nebulae results from the infrared space observatory |
| topic | Física, Astronomía y Matemáticas ISM: STRUCTURE PLANETARY NEBULAE: GENERAL |
| url | https://www.redalyc.org/articulo.oa?id=57112037 |