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dc.contributor.author
Zapata, Luis A.  
dc.contributor.author
Loinard, Laurent  
dc.contributor.author
Fernandez Lopez, Manuel  
dc.contributor.author
Toalá, Jesús A.  
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González, Ricardo F.  
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Rodríguez, Luis F.  
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Gull, Theodore R.  
dc.contributor.author
Morris, Patrick W.  
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Menten, Karl M.  
dc.contributor.author
Kamiński, Tomasz  
dc.date.available
2023-10-04T09:38:45Z  
dc.date.issued
2022-08  
dc.identifier.citation
Zapata, Luis A.; Loinard, Laurent; Fernandez Lopez, Manuel; Toalá, Jesús A.; González, Ricardo F.; et al.; Catching the Butterfly and the Homunculus of n Carinae with ALMA; IOP Publishing; Astrophysical Journal; 935; 2; 8-2022; 1-13  
dc.identifier.issn
0004-637X  
dc.identifier.uri
http://hdl.handle.net/11336/214007  
dc.description.abstract
The nature and origin of the molecular gas component located in the circumstellar vicinity of n Carinae are still far from being completely understood. Here, we present Atacama Large Millimeter/submillimeter Array CO(3-2) observations with a high angular resolution (∼0.″15) and a great sensitivity that are employed to reveal the origin of this component in n Carinae. These observations reveal much higher velocity (-300 to +270 km s-1) blue- and redshifted molecular thermal emission than previously reported, which we associate with the lobes of the Homunculus Nebula, and which delineates very well the innermost contours of the red- and blueshifted lobes likely due to limb brightening. The inner contour of the redshifted emission was proposed to be a disrupted torus, but here we reveal that it is at least part of the molecular emission originating from the lobes and/or the expanding equatorial skirt. On the other hand, closer to systemic velocities (±100 km s-1), the CO molecular gas traces an inner butterfly-shaped structure that is also revealed at near-IR and mid-IR wavelengths as the region in which the shielded dust resides. The location and kinematics of the molecular component indicate that this material has formed after the different eruptions of n Carinae.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
IOP Publishing  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Evolved stars  
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Astrophysics - Astrophysics of Galaxies  
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Astrophysics - Solar and Stellar Astrophysics  
dc.subject.classification
Astronomía  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Catching the Butterfly and the Homunculus of n Carinae with ALMA  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-09-25T14:52:21Z  
dc.journal.volume
935  
dc.journal.number
2  
dc.journal.pagination
1-13  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Zapata, Luis A.. Universidad Nacional Autónoma de México; México  
dc.description.fil
Fil: Loinard, Laurent. Universidad Nacional Autónoma de México; México  
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Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina  
dc.description.fil
Fil: Toalá, Jesús A.. Universidad Nacional Autónoma de México; México  
dc.description.fil
Fil: González, Ricardo F.. Universidad Nacional Autónoma de México; México  
dc.description.fil
Fil: Rodríguez, Luis F.. Universidad Nacional Autónoma de México; México  
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Fil: Gull, Theodore R.. No especifíca;  
dc.description.fil
Fil: Morris, Patrick W.. No especifíca;  
dc.description.fil
Fil: Menten, Karl M.. Max Planck Institute For Radio Astronomy; Alemania  
dc.description.fil
Fil: Kamiński, Tomasz. Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences; Polonia  
dc.journal.title
Astrophysical Journal  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3847/1538-4357/ac7461