Sub-millimeter non-contaminated detection of the disk around TWA\\,7 by ALMA

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dc.catalogadorvzp
dc.contributor.authorBayo, A.
dc.contributor.authorOlofsson, Johan
dc.contributor.authorMatra, L.
dc.contributor.authorBeamin Muhlenbrock, Juan Carlos
dc.contributor.authorGallardo, J.
dc.contributor.authorde Gregorio-Monsalvo, I.
dc.contributor.authorBooth, M.
dc.contributor.authorZamora, C.
dc.contributor.authorIglesias, D.
dc.contributor.authorHenning, Th.
dc.contributor.authorR. Schreiber, M.
dc.contributor.authorCáceres Acevedo, Claudio Cesar
dc.date.accessioned2024-03-15T13:57:01Z
dc.date.available2024-03-15T13:57:01Z
dc.date.issued2019
dc.description.abstractDebris disks can be seen as the left-overs of giant planet formation and the possible nurseries of rocky planets. While M-type stars out-number more massive stars we know very little about the time evolution of their circumstellar disks at ages older than $\sim 10$\,Myr. Sub-millimeter observations are best to provide first order estimates of the available mass reservoir and thus better constrain the evolution of such disks. Here, we present ALMA Cycle\,3 Band\,7 observations of the debris disk around the M2 star TWA\,7, which had been postulated to harbor two spatially separated dust belts, based on unresolved far-infrared and sub-millimeter data. We show that most of the emission at wavelengths longer than $\sim 300$\,$\mu$m is in fact arising from a contaminant source, most likely a sub-mm galaxy, located at about 6.6" East of TWA\,7 (in 2016). Fortunately, the high resolution of our ALMA data allows us to disentangle the contaminant emission from that of the disc and report a significant detection of the disk in the sub-millimeter for the first time with a flux density of 2.1$\pm$0.4 mJy at 870 $\mu$m. With this detection, we show that the SED can be reproduced with a single dust belt.
dc.fuente.origenORCID
dc.identifier.doi10.48550/arXiv.1806.09252
dc.identifier.urihttps://publons.com/wos-op/publon/15577962/
dc.identifier.urihttps://doi.org/10.48550/arXiv.1806.09252
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84471
dc.information.autorucInstituto de Física; Beamin Muhlenbrock Juan Carlos; 0000-0002-8409-6534; 154617
dc.information.autorucInstituto de Física; Caceres Acevedo Claudio Cesar; S/I; 126012
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final6
dc.pagina.inicio1
dc.rightsacceso abierto
dc.rights.licenseCC BY-NC-ND 4.0 DEEDAttribution-NonCommercial-NoDerivs 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleSub-millimeter non-contaminated detection of the disk around TWA\\,7 by ALMA
dc.typepreprint
sipa.codpersvinculados154617
sipa.codpersvinculados126012
sipa.trazabilidadORCID;2024-03-11
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