Sökning: (WFRF:(Grellmann R.)) > The GRAVITY young s...
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000 | 11207naa a2201081 4500 | |
001 | oai:research.chalmers.se:7079880a-c51f-4030-9fdd-08247fd30731 | |
003 | SwePub | |
008 | 200416s2020 | |||||||||||000 ||eng| | |
009 | oai:DiVA.org:su-181757 | |
024 | 7 | a https://research.chalmers.se/publication/5164892 URI |
024 | 7 | a https://doi.org/10.1051/0004-6361/2020375832 DOI |
024 | 7 | a 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 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a 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 |
245 | 1 0 | a 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 | 1 | b 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 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
650 | 7 | a 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 | |
700 | 1 | a 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 |
700 | 1 | a 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 |
700 | 1 | a Koutoulaki, M.u Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland,European Southern Observatory (ESO)4 aut |
700 | 1 | a Perraut, K.u Université Grenoble Alpes,Grenoble Alpes University,Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Linz, H.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Brandner, W.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Garcia, P. J. V.u Universidade do Porto,University of Porto,Instituto Superior Tecnico,European Southern Observatory Santiago,Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Klarmann, L.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Henning, T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Labadie, L.u Universität zu Köln,University of Cologne,Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a 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 |
700 | 1 | a Lazareff, B.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a 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 |
700 | 1 | a Caselli, P.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a 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 |
700 | 1 | a Bik, Adrianusu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University4 aut0 (Swepub:su)abik |
700 | 1 | a Benisty, M.u European Southern Observatory Santiago,Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Dougados, C.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Ray, Tomu Dublin Institute for Advanced Studies4 aut |
700 | 1 | a Amorim, A.u Instituto Superior Tecnico,Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Berger, J. P.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Clénet, Y.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Coudé Du Foresto, V.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Duvert, G.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Eckart, A.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Eisenhauer, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Gao, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Gendron, E.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a 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 |
700 | 1 | a Gillessen, S.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Gordo, P.u Instituto Superior Tecnico4 aut |
700 | 1 | a Jocou, L.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Horrobin, M.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Kervella, P.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Lacour, S.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Le Bouquin, J. B.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Léna, P.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Grellmann, R.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Ott, T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Paumard, T.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Perrin, G.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Rousset, G.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Scheithauer, S.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Shangguan, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Stadler, J.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Straub, O.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Straubmeier, C.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Sturm, E.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a 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 |
700 | 1 | a Vincent, F. H.u Observatoire de Paris,Paris Observatory4 aut |
700 | 1 | a Widmann, F.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
710 | 2 | a Dublin Institute for Advanced Studiesb Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)4 org |
773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 635q 635x 0004-6361x 1432-0746 |
856 | 4 | u https://research.chalmers.se/publication/516489/file/516489_Fulltext.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://www.aanda.org/articles/aa/pdf/2020/03/aa37583-20.pdf |
856 | 4 8 | u https://research.chalmers.se/publication/516489 |
856 | 4 8 | u https://doi.org/10.1051/0004-6361/202037583 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-181757 |
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