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Outflows from the y...
Outflows from the youngest stars are mostly molecular
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- Ray, T. P. (author)
- Dublin Institute for Advanced Studies,Trinity College Dublin, the University of Dublin
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- Mccaughrean, M. J. (author)
- European Space Research and Technology Centre (ESA ESTEC)
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- o Garatti, A. Caratti (author)
- Osservatorio Astronomico di Capodimonte,Stockholms universitet,Stockholm University
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- Kavanagh, P. J. (author)
- Maynooth University,Dublin Institute for Advanced Studies
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- Justtanont, Kay, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- van Dishoeck, E. F. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Reitsma, M. (author)
- Universiteit Leiden (UL),Leiden University (UL),European Space Research and Technology Centre (ESA ESTEC)
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- Beuther, H. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Francis, L. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Gieser, C. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Klaassen, P. (author)
- Royal Observatory
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- Perotti, G. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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Tychoniec, L. (author)
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- van Gelder, M. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Colina, L. (author)
- Centro de Astrobiologia (CAB)
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- Greve, Th. R. (author)
- Danmarks Tekniske Universitet,Technical University of Denmark
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- Guedel, M. (author)
- Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH),Universität Wien,University of Vienna,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Henning, Th. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Lagage, P. O. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Östlin, Göran, 1968- (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Vandenbussche, B. (author)
- Katholieke Universiteit Leuven
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- Waelkens, C. (author)
- Katholieke Universiteit Leuven
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- Wright, G. (author)
- Royal Observatory
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- Tychoniec, Łukasz (author)
- European Southern Observatory (ESO)
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Nature. - 0028-0836 .- 1476-4687. ; 622, s. 48-52
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Abstract
Subject headings
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- The formation of stars and planets is accompanied not only by the build-up of matter, namely accretion, but also by its expulsion in the form of highly supersonic jets that can stretch for several parsecs1,2. As accretion and jet activity are correlated and because young stars acquire most of their mass rapidly early on, the most powerful jets are associated with the youngest protostars3. This period, however, coincides with the time when the protostar and its surroundings are hidden behind many magnitudes of visual extinction. Millimetre interferometers can probe this stage but only for the coolest components3. No information is provided on the hottest (greater than 1,000 K) constituents of the jet, that is, the atomic, ionized and high-temperature molecular gases that are thought to make up the jet's backbone. Detecting such a spine relies on observing in the infrared that can penetrate through the shroud of dust. Here we report near-infrared observations of Herbig-Haro 211 from the James Webb Space Telescope, an outflow from an analogue of our Sun when it was, at most, a few times 104 years old. These observations reveal copious emission from hot molecules, explaining the origin of the 'green fuzzies'4-7 discovered nearly two decades ago by the Spitzer Space Telescope8. This outflow is found to be propagating slowly in comparison to its more evolved counterparts and, surprisingly, almost no trace of atomic or ionized emission is seen, suggesting its spine is almost purely molecular. Near-infrared imagery and spectroscopy from JWST of the Herbig-Haro 211 system, an analogue of the young Sun, reveals supersonic jets of hot molecules that can explain the origin of the 'green fuzzies' phenomenon.
Subject headings
- NATURVETENSKAP -- Annan naturvetenskap (hsv//swe)
- NATURAL SCIENCES -- Other Natural Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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Nature
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- By the author/editor
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Ray, T. P.
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Mccaughrean, M. ...
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o Garatti, A. Ca ...
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Kavanagh, P. J.
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Justtanont, Kay, ...
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van Dishoeck, E. ...
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show more...
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Reitsma, M.
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Beuther, H.
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Francis, L.
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Gieser, C.
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Klaassen, P.
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Perotti, G.
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Tychoniec, L.
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van Gelder, M.
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Colina, L.
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Greve, Th. R.
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Guedel, M.
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Henning, Th.
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Lagage, P. O.
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Östlin, Göran, 1 ...
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Vandenbussche, B ...
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Waelkens, C.
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Wright, G.
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Tychoniec, Łukas ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Other Natural Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Nature
- By the university
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Stockholm University
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Chalmers University of Technology