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ALMA observations of the young substellar binary system 2M1207

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dc.contributor.authorRicci, L.
dc.contributor.authorCazzoletti, P.
dc.contributor.authorCzekala, I.
dc.contributor.authorAndrews, S. M.
dc.contributor.authorWilner, D.
dc.contributor.authorSzűcs, L.
dc.contributor.authorLodato, G.
dc.contributor.authorTesti, L.
dc.contributor.authorPascucci, I.
dc.contributor.authorMohanty, S.
dc.contributor.authorApai, D.
dc.contributor.authorCarpenter, J. M.
dc.contributor.authorBowler, B. P.
dc.date.accessioned2023-08-29T11:30:10Z
dc.date.available2023-08-29T11:30:10Z
dc.date.issued2017-07-01
dc.identifier293199173
dc.identifiera668d2eb-4f8e-44bf-9774-0d435c26b373
dc.identifier85024399041
dc.identifier.citationRicci , L , Cazzoletti , P , Czekala , I , Andrews , S M , Wilner , D , Szűcs , L , Lodato , G , Testi , L , Pascucci , I , Mohanty , S , Apai , D , Carpenter , J M & Bowler , B P 2017 , ' ALMA observations of the young substellar binary system 2M1207 ' , Astronomical Journal , vol. 154 , no. 1 , 24 . https://doi.org/10.3847/1538-3881/aa78a0en
dc.identifier.issn0004-6256
dc.identifier.otherBibCode: 2017AJ....154...24R
dc.identifier.otherORCID: /0000-0002-1483-8811/work/141643339
dc.identifier.urihttps://hdl.handle.net/10023/28255
dc.descriptionFunding: J.M.C. acknowledges support from the National Aeronautics and Space Administration under Grant No. 15XRP15_20140 issued through the Exoplanets Research Program. Support for this work was provided by NASA through Hubble Fellowship grant HST-HF2-51369.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555.en
dc.description.abstractWe present ALMA observations of the 2M1207 system, a young binary made of a brown dwarf with a planetary-mass companion at a projected separation of about 40 au. We detect emission from dust continuum at 0.89 mm and from the J=3-2 rotational transition of CO from a very compact disk around the young brown dwarf. The small radius found for this brown dwarf disk may be due to truncation from the tidal interaction with the planetary-mass companion. Under the assumption of optically thin dust emission, we estimate a dust mass of 0.1 M ⊕ for the 2M1207A disk and a 3σ upper limit of ∼1 MMoon for dust surrounding 2M1207b, which is the tightest upper limit obtained so far for the mass of dust particles surrounding a young planetary-mass companion. We discuss the impact of this and other non-detections of young planetary-mass companions for models of planet formation that predict circumplanetary material to surround these objects.
dc.format.extent8
dc.format.extent1353693
dc.language.isoeng
dc.relation.ispartofAstronomical Journalen
dc.subjectCircumstellar matteren
dc.subjectPlanets and satellites: formationen
dc.subjectStars: individual: 2M1207en
dc.subjectSubmillimeter: starsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleALMA observations of the young substellar binary system 2M1207en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.3847/1538-3881/aa78a0
dc.description.statusPeer revieweden
dc.identifier.urlhttps://arxiv.org/abs/1706.03708en
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2017AJ....154...24Ren


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