A far-infrared study of low and intermediate mass evolved stars using "Herschel" PACS and SPIRE Spectroscopy
In this thesis, a far-infrared (FIR) study of evolved low and intermediate mass stars is presented. The characterization of these evolved stars is particularly interesting when we analyse their properties in the FIR and the sub-millimeter wavelength regions. Due to the very promising spectroscopic d...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | español |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/11147 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/11147 |
| Access Level: | acceso abierto |
| Palabra clave: | 524.3-54(043.2) Estrellas Stars Astronomía (Física) |
| Sumario: | In this thesis, a far-infrared (FIR) study of evolved low and intermediate mass stars is presented. The characterization of these evolved stars is particularly interesting when we analyse their properties in the FIR and the sub-millimeter wavelength regions. Due to the very promising spectroscopic data of Herschel, PACS (50-220 m) and SPIRE (200-600m) observations have been included in this thesis to carry out a systematic an homogeneous study of a relatively big sample of evolved stars which cover dierent evolutionary stages (AGBs, post-AGBs and PNe) and chemical types. The first main step of this work was the systematic and homogeneous data reduction process developed for two dierent sample of sources observed with PACS and (or) SPIRE in spectroscopic mode. The stars included in the reprocessed sample were taken from the Herschel Science Archive, as they have been previously observed with these instruments as part of numerous observing programs. As a result two different web-based catalogues(https://throes.cab.inta-csic.es and https://throes-spire.cab.inta-csic.es) were created to offer to the whole scientific community, 220 science-ready spectroscopic data corresponding to114 dierent evolved stars observed with PACS and, also, 109 fully-reduced SPIRE spectra associated to 68 individual targets. |
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