Rings and arcs around evolved stars - III. Physical conditions of the ring-like structures in the planetary nebula IC 4406 revealed by MUSE
- We present the analysis of Very Large Telescope Multi Unit Spectroscopic Explorer (MUSE) observations of the planetary nebula (PN) IC 4406. MUSE images in key emission lines are used to unveil the presence of at least five ring-like structures north and south of the main nebula of IC4406. MUSE spectra are extracted from the rings to unambiguously assess for the first time in a PN their physical conditions, electron density (n(e)), and temperature (T-e). The rings are found to have similar T-e as the rim of the main nebula, but smaller n(e). Ratios between different ionic species suggest that the rings of IC4406 have a lower ionization state than the main cavity, in contrast to what was suggested for the rings in NGC 6543, the Cat's Eye Nebula.
| Verfasserangaben: | Gerardo Ramos-LariosORCiD, Jesús Alberto ToalaORCiD, Janis B. Rodriguez-GonzalezORCiD, Martin A. GuerreroORCiD, Víctor Mauricio Alfonso Gomez-GonzalezORCiDGND |
|---|---|
| ISSN: | 0035-8711 |
| ISSN: | 1365-2966 |
| Titel des übergeordneten Werks (Englisch): | Monthly notices of the Royal Astronomical Society |
| Verlag: | Oxford Univ. Press |
| Verlagsort: | Oxford |
| Publikationstyp: | Wissenschaftlicher Artikel |
| Sprache: | Englisch |
| Datum der Erstveröffentlichung: | 08.03.2022 |
| Erscheinungsjahr: | 2022 |
| Datum der Freischaltung: | 14.05.2024 |
| Freies Schlagwort / Tag: | planetary nebulae: general;; planetary nebulae: individual: IC4406; stars: evolution; stars: winds, outflows |
| Band: | 513 |
| Ausgabe: | 2 |
| Seitenanzahl: | 7 |
| Erste Seite: | 2862 |
| Letzte Seite: | 2868 |
| Fördernde Institution: | CONACyT [263373]; PRODEP (Mexico); Programa de Becas posdoctorales of; the Direccion General de Asuntos del Personal Academico (DGAPA) of the; Universidad Nacional Autonoma de Mexico (UNAM, Mexico); DGAPA UNAM; PAPIIT project [IA100720]; Marcos Moshinsky Fundation (Mexico); Spanish; Ministerio de Ciencia, Innovacion y Universidades grant; [PGC2018-102184-B-I00]; FEDER funds; European Organization for; Astronomical Research in the Southern Hemisphere under ESO programme; [60.A-9100] |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 52 Astronomie |
| Peer Review: | Referiert |
| Lizenz (Deutsch): |  CC-BY - Namensnennung 4.0 International |
