Sökning: onr:"swepub:oai:research.chalmers.se:e2e5d150-e93f-4ef5-912d-429626e50536" > A measure of the si...
Fältnamn | Indikatorer | Metadata |
---|---|---|
000 | 12450naa a2201165 4500 | |
001 | oai:research.chalmers.se:e2e5d150-e93f-4ef5-912d-429626e50536 | |
003 | SwePub | |
008 | 200903s2020 | |||||||||||000 ||eng| | |
024 | 7 | a https://doi.org/10.1038/s41586-020-2613-12 DOI |
024 | 7 | a https://research.chalmers.se/publication/5188882 URI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 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 Ireland4 aut |
245 | 1 0 | a A measure of the size of the magnetospheric accretion region in TW Hydrae |
264 | c 2020-08-26 | |
264 | 1 | b Springer Science and Business Media LLC,c 2020 |
520 | a Stars form by accreting material from their surrounding disks. There is a consensus that matter flowing through the disk is channelled onto the stellar surface by the stellar magnetic field. This is thought to be strong enough to truncate the disk close to the corotation radius, at which the disk rotates at the same rate as the star. Spectro-interferometric studies in young stellar objects show that hydrogen emission (a well known tracer of accretion activity) mostly comes from a region a few milliarcseconds across, usually located within the dust sublimation radius1–3. The origin of the hydrogen emission could be the stellar magnetosphere, a rotating wind or a disk. In the case of intermediate-mass Herbig AeBe stars, the fact that Brackett γ (Brγ) emission is spatially resolved rules out the possibility that most of the emission comes from the magnetosphere4–6 because the weak magnetic fields (some tenths of a gauss) detected in these sources7,8 result in very compact magnetospheres. In the case of T Tauri sources, their larger magnetospheres should make them easier to resolve. The small angular size of the magnetosphere (a few tenths of a milliarcsecond), however, along with the presence of winds9,10 make the interpretation of the observations challenging. Here we report optical long-baseline interferometric observations that spatially resolve the inner disk of the T Tauri star TW Hydrae. We find that the near-infrared hydrogen emission comes from a region approximately 3.5 stellar radii across. This region is within the continuum dusty disk emitting region (7 stellar radii across) and also within the corotation radius, which is twice as big. This indicates that the hydrogen emission originates in the accretion columns (funnel flows of matter accreting onto the star), as expected in magnetospheric accretion models, rather than in a wind emitted at much larger distance (more than one astronomical unit). | |
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 Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng |
700 | 1 | a Natta, A.u Dublin Institute for Advanced Studies4 aut |
700 | 1 | a Garatti, A. Caratti o.u Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Ray, Tomu Dublin Institute for Advanced Studies4 aut |
700 | 1 | a Fedriani, Rubén,d 1991u Chalmers tekniska högskola,Chalmers University of Technology,Dublin Institute for Advanced Studies4 aut0 (Swepub:cth)fedriani |
700 | 1 | a Koutoulaki, M.u European Southern Observatory (ESO),Dublin Institute for Advanced Studies4 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 Perraut, K.u 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 Benisty, M.u Université Grenoble Alpes,Grenoble Alpes University,Universidad de Chile (UCH),University of Chile (UCH)4 aut |
700 | 1 | a Dougados, C.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Labadie, L.u Universität zu Köln,University of Cologne4 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 European Southern Observatory Santiago,Instituto Superior Tecnico,Universidade do Porto,University of Porto4 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 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 Duvert, G.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a De Zeeuw, T.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 Grellmann, R.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Abuter, R.u European Southern Observatory (ESO)4 aut |
700 | 1 | a Amorim, A.u Instituto Superior Tecnico,Universidade de Lisboa,University of Lisbon4 aut |
700 | 1 | a Bauböck, M.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 Berger, J. P.u European Southern Observatory (ESO),Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Bonnet, H.u European Southern Observatory (ESO)4 aut |
700 | 1 | a Buron, A.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 Clénet, Y.u PSL University Paris4 aut |
700 | 1 | a Coudé Du Foresto, V.u PSL University Paris4 aut |
700 | 1 | a De Wit, W. J.u European Southern Observatory Santiago4 aut |
700 | 1 | a Eckart, A.u Universität zu Köln,University of Cologne,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 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 Filho, M.u Universidade do Porto,University of Porto,Instituto Superior Tecnico,European Southern Observatory Santiago4 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 Garcia Dabo, C. E.u European Southern Observatory (ESO)4 aut |
700 | 1 | a Gendron, E.u PSL University Paris4 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 Habibi, M.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 Haubois, X.u European Southern Observatory Santiago4 aut |
700 | 1 | a Haussmann, 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 Hippler, 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 Hubert, Z.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Horrobin, M.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Jimenez-Rosales, Alejandrau Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Jocou, L.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Kervella, P.u PSL University Paris4 aut |
700 | 1 | a Kolb, J.u European Southern Observatory Santiago4 aut |
700 | 1 | a Lacour, S.u PSL University Paris4 aut |
700 | 1 | a Le Bouquin, J. B.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a Léna, P.u PSL University Paris4 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 PSL University Paris4 aut |
700 | 1 | a Perrin, G.u PSL University Paris4 aut |
700 | 1 | a Pfuhl, O.u European Southern Observatory (ESO)4 aut |
700 | 1 | a Ramirez, A.u European Southern Observatory (ESO)4 aut |
700 | 1 | a Rau, C.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 Rousset, G.u PSL University Paris4 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 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 Vincent, F. H.u PSL University Paris4 aut |
700 | 1 | a von Fellenberg, 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 Widmann, 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 Wieprecht, 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 Wiest, M.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Wiezorrek, 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 Woillez, Julienu European Southern Observatory (ESO)4 aut |
700 | 1 | a Yazici, S.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Zins, G.u European Southern Observatory Santiago4 aut |
710 | 2 | a Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)b Dublin Institute for Advanced Studies4 org |
773 | 0 | t Natured : Springer Science and Business Media LLCg 584:7822, s. 547-550q 584:7822<547-550x 0028-0836x 1476-4687 |
856 | 4 | u https://scholarlypublications.universiteitleiden.nl/access/item%3A3142113/view |
856 | 4 8 | u https://doi.org/10.1038/s41586-020-2613-1 |
856 | 4 8 | u https://research.chalmers.se/publication/518888 |
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
Kopiera och spara länken för att återkomma till aktuell vy