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FältnamnIndikatorerMetadata
00011207naa a2201081 4500
001oai:research.chalmers.se:7079880a-c51f-4030-9fdd-08247fd30731
003SwePub
008200416s2020 | |||||||||||000 ||eng|
009oai:DiVA.org:su-181757
024a https://research.chalmers.se/publication/5164892 URI
024a https://doi.org/10.1051/0004-6361/2020375832 DOI
024a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1817572 URI
040 a (SwePub)cthd (SwePub)su
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
100a Garatti, A. Caratti o.u Dublin Institute for Advanced Studies,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),University College Dublin, National University Of Ireland,Instituto Superior Tecnico4 aut
2451 0a The GRAVITY young stellar object survey: II. First spatially resolved observations of the CO bandhead emission in a high-mass YSO
264 c 2020-03-24
264 1b EDP Sciences,c 2020
338 a electronic2 rdacarrier
520 a Context. The inner regions of the discs of high-mass young stellar objects (HMYSOs) are still poorly known due to the small angular scales and the high visual extinction involved. Aims. We deploy near-infrared spectro-interferometry to probe the inner gaseous disc in HMYSOs and investigate the origin and physical characteristics of the CO bandhead emission (2.3-2.4 m). Methods. We present the first GRAVITY/VLTI observations at high spectral (R = 4000) and spatial (mas) resolution of the CO overtone transitions in NGC2024 IRS 2. Results. The continuum emission is resolved in all baselines and is slightly asymmetric, displaying small closure phases (8). Our best ellipsoid model provides a disc inclination of 34 1, a disc major axis position angle (PA) of 166 1, and a disc diameter of 3:99 0:09 mas (or 1.69 0.04 au, at a distance of 423 pc). The small closure phase signals in the continuum are modelled with a skewed rim, originating from a pure inclination effect. For the first time, our observations spatially and spectrally resolve the first four CO bandheads. Changes in visibility, as well as differential and closure phases across the bandheads are detected. Both the size and geometry of the CO-emitting region are determined by fitting a bidimensional Gaussian to the continuum-compensated CO bandhead visibilities. The CO-emitting region has a diameter of 2.740:08 0:07 mas (1.16 0.03 au), and is located in the inner gaseous disc, well within the dusty rim, with inclination and PA matching the dusty disc geometry, which indicates that both dusty and gaseous discs are coplanar. Physical and dynamical gas conditions are inferred by modelling the CO spectrum. Finally, we derive a direct measurement of the stellar mass of M 14:7 M by combining our interferometric and spectral modelling results.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a Techniques: spectroscopic
653 a Methods: observational
653 a Infrared: stars
653 a Techniques: interferometric
653 a Stars: massive
653 a Stars: formation
700a Fedriani, Rubén,d 1991u Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland,Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)fedriani
700a Garcia-Lopez, R.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland,Observatoire de Paris,Paris Observatory4 aut
700a Koutoulaki, M.u Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland,European Southern Observatory (ESO)4 aut
700a Perraut, K.u Université Grenoble Alpes,Grenoble Alpes University,Observatoire de Paris,Paris Observatory4 aut
700a Linz, H.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Brandner, W.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Garcia, P. J. V.u Universidade do Porto,University of Porto,Instituto Superior Tecnico,European Southern Observatory Santiago,Observatoire de Paris,Paris Observatory4 aut
700a Klarmann, L.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Henning, T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Labadie, L.u Universität zu Köln,University of Cologne,Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Sanchez-Bermudez, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico4 aut
700a Lazareff, B.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a van Dishoeck, E. F.u Universiteit Leiden (UL),Leiden University (UL),Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Caselli, P.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a De Zeeuw, P. T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Universiteit Leiden (UL),Leiden University (UL),Observatoire de Paris,Paris Observatory4 aut
700a Bik, Adrianusu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University4 aut0 (Swepub:su)abik
700a Benisty, M.u European Southern Observatory Santiago,Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Dougados, C.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Ray, Tomu Dublin Institute for Advanced Studies4 aut
700a Amorim, A.u Instituto Superior Tecnico,Universität zu Köln,University of Cologne4 aut
700a Berger, J. P.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Clénet, Y.u Observatoire de Paris,Paris Observatory4 aut
700a Coudé Du Foresto, V.u Observatoire de Paris,Paris Observatory4 aut
700a Duvert, G.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Eckart, A.u Universität zu Köln,University of Cologne4 aut
700a Eisenhauer, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Gao, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Gendron, E.u Observatoire de Paris,Paris Observatory4 aut
700a Genzel, R.u University of California,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Gillessen, S.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Gordo, P.u Instituto Superior Tecnico4 aut
700a Jocou, L.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Horrobin, M.u Universität zu Köln,University of Cologne4 aut
700a Kervella, P.u Observatoire de Paris,Paris Observatory4 aut
700a Lacour, S.u Observatoire de Paris,Paris Observatory4 aut
700a Le Bouquin, J. B.u Université Grenoble Alpes,Grenoble Alpes University4 aut
700a Léna, P.u Observatoire de Paris,Paris Observatory4 aut
700a Grellmann, R.u Universität zu Köln,University of Cologne4 aut
700a Ott, T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Paumard, T.u Observatoire de Paris,Paris Observatory4 aut
700a Perrin, G.u Observatoire de Paris,Paris Observatory4 aut
700a Rousset, G.u Observatoire de Paris,Paris Observatory4 aut
700a Scheithauer, S.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Shangguan, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Stadler, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Straub, O.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Straubmeier, C.u Universität zu Köln,University of Cologne4 aut
700a Sturm, E.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Thi, W. F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
700a Vincent, F. H.u Observatoire de Paris,Paris Observatory4 aut
700a Widmann, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
710a Dublin Institute for Advanced Studiesb Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)4 org
773t Astronomy and Astrophysicsd : EDP Sciencesg 635q 635x 0004-6361x 1432-0746
856u https://research.chalmers.se/publication/516489/file/516489_Fulltext.pdfx primaryx freey FULLTEXT
856u https://www.aanda.org/articles/aa/pdf/2020/03/aa37583-20.pdf
8564 8u https://research.chalmers.se/publication/516489
8564 8u https://doi.org/10.1051/0004-6361/202037583
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-181757

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