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dc.contributor.author
Zapata, Luis A.
dc.contributor.author
Loinard, Laurent
dc.contributor.author
Fernandez Lopez, Manuel
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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.
dc.contributor.author
Menten, Karl M.
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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
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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
dc.description.fil
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
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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
dc.description.fil
Fil: Gull, Theodore R.. No especifíca;
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Fil: Morris, Patrick W.. No especifíca;
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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
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