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dc.date.accessioned | 2019-11-01T13:48:03Z | |
dc.date.available | 2019-11-01T13:48:03Z | |
dc.date.issued | 2002 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/84623 | |
dc.description.abstract | We report radio continuum observations at 1465 MHz obtained with the Very Large Array (VLA) in the DnC configuration toward the ring nebulae associated with the stars WR 101 and WR 113, with resolutions of ∼38″ and 30″, respectively. IRAS images of the nebulae with resolutions of about 2′ (90 M⊙, 40 cm-3) are also analyzed. A remarkable resemblance among the optical, infrared, and radio images of these ring nebulae is observed. The VLA data indicate that Anon. WR 101 is thermal in nature. An ionized mass of ≈230 ± 40 M⊙ and electron densities in the range ≈40-55 cm-3 were estimated for Anon. WR 101. The derived ionized masses and electron densities in the inner and outer shells of the nebula related to WR 113 are ≈20 ± 10 M⊙, 180-500 cm-3 and ≈90 M⊙ 40 cm-3, respectively. Based on infrared data at 60 and 100 μm, the derived masses and temperatures for the dust component in the ring nebula around WR 101 are 0.3-1 M⊙ and ≈40 K. The associated masses suggest that the ring nebula related to WR 101 and the outer arc associated with WR 113 consist of swept-up interstellar matter, while the relatively low ionized mass associated with the inner shell of the nebula around WR 113 may contain a nonnegligible contribution of expelled ejecta material. The derived electron densities for the nebula around WR 101 and the inner shell around WR 113 are comparable to electron densities for other W-R ring nebulae. Low filling factors are inferred for both nebulae. The nebulae probably originated during the current W-R phase of the stars. | en |
dc.format.extent | 3348-3355 | es |
dc.language | en | es |
dc.subject | ISM: bubbles | es |
dc.subject | ISM: individual (Anon. WR 101, Anon WR 113) | es |
dc.subject | Stars: individual (WR 101, WR 113) | es |
dc.subject | Stars: Wolf-Rayet | es |
dc.title | VLA radio continuum and IRAS observations of the ring nebulae around WR 101 and WR 113 | en |
dc.type | Articulo | es |
sedici.identifier.other | doi:10.1086/340725 | es |
sedici.identifier.other | eid:2-s2.0-0141638728 | es |
sedici.identifier.issn | 0004-6256 | es |
sedici.creator.person | Cappa, Cristina Elisabet | es |
sedici.creator.person | Goss, W. M. | es |
sedici.creator.person | Pineault, Serge | es |
sedici.subject.materias | Ciencias Astronómicas | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Astronómicas y Geofísicas | es |
mods.originInfo.place | Instituto Argentino de Radioastronomía | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | The Astronomical Journal | es |
sedici.relation.journalVolumeAndIssue | vol. 123, no. 6 | es |
sedici.rights.sherpa | * RoMEO: verde* Pre-print del autor: can* Post-print del autor: can* Versión de editor/PDF:can* Condiciones:>>On any website, arXiv, scientific social networks (except Research Gate) or non-commercial open access repository.>>Publisher's version/PDF may be used on any website or authors' institutional repository>>Deben reconocerse el copyright y la fuente editorial>>Debe ir enlazado a la versión de editor>>La versión de editor/PDF puede utilizarse>>Authors depositing in arXiv must they choose the first licence statement offered by arXiv when uploading their article � a "non-exclusive licence to distribute">>Publisher last contacted on 10/02/2016>>Publisher last reviewed on 15/08/2017* Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0004-6256/es/ |