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Measuring the ionis...
Measuring the ionisation fraction in a jet from a massive protostar
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- Fedriani, R. (author)
- Dublin Institute for Advanced Studies,University College Dublin, National University Of Ireland
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- Garatti, A. Caratti o. (author)
- University College Dublin, National University Of Ireland,Dublin Institute for Advanced Studies
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- Purser, S. J.D. (author)
- Dublin Institute for Advanced Studies
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- Sanna, A. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Tan, Jonathan, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,University of Virginia
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- Garcia-Lopez, R. (author)
- Dublin Institute for Advanced Studies
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- Ray, T. P. (author)
- Dublin Institute for Advanced Studies
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- Coffey, Deirdre (author)
- University College Dublin, National University Of Ireland,Dublin Institute for Advanced Studies
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- Stecklum, B. (author)
- Thüringer Landessternwarte Tautenburg
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- Hoare, M. G. (author)
- University of Leeds
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(creator_code:org_t)
- 2019-08-09
- 2019
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723 .- 2041-1723. ; 10:1
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Abstract
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- It is important to determine if massive stars form via disc accretion, like their low-mass counterparts. Theory and observation indicate that protostellar jets are a natural consequence of accretion discs and are likely to be crucial for removing angular momentum during the collapse. However, massive protostars are typically rarer, more distant and more dust enshrouded, making observational studies of their jets more challenging. A fundamental question is whether the degree of ionisation in jets is similar across the mass spectrum. Here we determine an ionisation fraction of ~5–12% in the jet from the massive protostar G35.20-0.74N, based on spatially coincident infrared and radio emission. This is similar to the values found in jets from lower-mass young stars, implying a unified mechanism of shock ionisation applies in jets across most of the protostellar mass spectrum, up to at least ~10 solar masses.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Fedriani, R.
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Garatti, A. Cara ...
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Purser, S. J.D.
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Sanna, A.
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Tan, Jonathan, 1 ...
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Garcia-Lopez, R.
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show more...
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Ray, T. P.
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Coffey, Deirdre
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Stecklum, B.
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Hoare, M. G.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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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 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Nature Communica ...
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Chalmers University of Technology