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dc.contributor.author
Zapata, Luis A.
dc.contributor.author
Rodríguez, Luis F.
dc.contributor.author
Fernandez Lopez, Manuel
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dc.contributor.author
Palau, Aina
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Estalella, Robert
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Osorio, Mayra
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Anglada, Guillem
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Huelamo, Nuria
dc.date.available
2020-12-30T15:25:01Z
dc.date.issued
2020-06
dc.identifier.citation
Zapata, Luis A.; Rodríguez, Luis F.; Fernandez Lopez, Manuel; Palau, Aina; Estalella, Robert; et al.; Tidal Interaction between the UX Tauri A/C Disk System Revealed by ALMA; IOP Publishing; Astrophysical Journal; 896; 2; 6-2020
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/121358
dc.description.abstract
We present sensitive and high angular-resolution (∼0.″2-0.″3) (sub)millimeter (230 and 345 GHz) continuum and CO(2-1)/CO(3-2) line archive observations of the disk star system in UX Tauri carried out with the Atacama Large Millimeter/Submillimeter Array. These observations reveal the gas and dusty disk surrounding the young star UX Tauri A with a large signal-to-noise ratio (>400 in the continuum and >50 in the line), and for the first time we detect the molecular gas emission associated with the disk of UX Tauri C (with a size for the disk of <56 au). No (sub)millimeter continuum emission is detected at the 5σ level (0.2 mJy at 0.85 mm) associated with UX Tauri C. For the component UX Tauri C, we estimate a dust disk mass of ≤0.05 M ⊕. Additionally, we report a strong tidal disk interaction between both disks, UX Tauri A/C, separated 360 au in projected distance. The CO line observations reveal marked spiral arms in the disk of UX Tauri A and an extended redshifted stream of gas associated with the UX Tauri C disk. No spiral arms are observed in the dust continuum emission of UX Tauri A. Assuming a Keplerian rotation we estimate the enclosed masses (disk+star) from their radial velocities in 1.4 ± 0.6 M o˙ for UX Tauri A, and 70 ± 30/sin i Jupiter masses for UX Tauri C (the latter coincides with the mass upper limit value for a brown dwarf). The observational evidence presented here lead us to propose that UX Tauri C has a close approach of a possible wide, evolving, and eccentric orbit around the disk of UX Tauri A, causing the formation of spiral arms and a stream of molecular gas falling toward UX Tauri C.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Protostars
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Interferometry
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Disks
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Astronomía
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Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Tidal Interaction between the UX Tauri A/C Disk System Revealed by 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
2020-12-04T18:35:37Z
dc.journal.volume
896
dc.journal.number
2
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Zapata, Luis A.. Instituto de Radioastronomía y Astrofísica; México
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Fil: Rodríguez, Luis F.. Instituto de Radioastronomía y Astrofísica; México. Universidad Autónoma de Chiapas; 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
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Fil: Palau, Aina. Instituto de Radioastronomía y Astrofísica; México
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Fil: Estalella, Robert. Universidad de Barcelona; España
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Fil: Osorio, Mayra. Instituto de Astrofísica de Andalucía; España
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Fil: Anglada, Guillem. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Huelamo, Nuria. Centro de Astrobiología (csic-inta); España
dc.journal.title
Astrophysical Journal
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3847/1538-4357/ab8fac
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ab8fac
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