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Laboratory disruption of scaled astrophysical outflows by a misaligned magnetic field
- Source :
- Nature Communications, Nature Communications, Nature Publishing Group, 2021, 12, pp.762. ⟨10.1038/s41467-021-20917-x⟩, Nature Communications, 2021, 12 (1), pp.762. ⟨10.1038/s41467-021-20917-x⟩, Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- The shaping of astrophysical outflows into bright, dense, and collimated jets due to magnetic pressure is here investigated using laboratory experiments. Here we look at the impact on jet collimation of a misalignment between the outflow, as it stems from the source, and the magnetic field. For small misalignments, a magnetic nozzle forms and redirects the outflow in a collimated jet. For growing misalignments, this nozzle becomes increasingly asymmetric, disrupting jet formation. Our results thus suggest outflow/magnetic field misalignment to be a plausible key process regulating jet collimation in a variety of objects from our Sun’s outflows to extragalatic jets. Furthermore, they provide a possible interpretation for the observed structuring of astrophysical jets. Jet modulation could be interpreted as the signature of changes over time in the outflow/ambient field angle, and the change in the direction of the jet could be the signature of changes in the direction of the ambient field.<br />Mass outflow is a common process in astrophysical objects. Here the authors investigate in which conditions an astrophysically-scaled laser-produced plasma flow can be collimated and evolves in the presence of a misaligned external magnetic field.
- Subjects :
- Science
Astrophysics::High Energy Astrophysical Phenomena
Nozzle
outflows, magnetohydrodynamics(MHD), shockwaves, astrophysical jets
General Physics and Astronomy
FOS: Physical sciences
Astrophysics
01 natural sciences
Article
General Biochemistry, Genetics and Molecular Biology
Collimated light
Settore FIS/05 - Astronomia E Astrofisica
Ambient field
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
Magnetic pressure
010306 general physics
010303 astronomy & astrophysics
Solar and Stellar Astrophysics (astro-ph.SR)
Astrophysics::Galaxy Astrophysics
Laboratory astrophysics
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
Jet (fluid)
Multidisciplinary
Laser-produced plasmas
General Chemistry
Physics - Plasma Physics
Magnetic field
Plasma Physics (physics.plasm-ph)
Astrophysics - Solar and Stellar Astrophysics
Physics::Accelerator Physics
Outflow
High Energy Physics::Experiment
Astrophysics - High Energy Astrophysical Phenomena
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Database :
- OpenAIRE
- Journal :
- Nature Communications, Nature Communications, Nature Publishing Group, 2021, 12, pp.762. ⟨10.1038/s41467-021-20917-x⟩, Nature Communications, 2021, 12 (1), pp.762. ⟨10.1038/s41467-021-20917-x⟩, Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
- Accession number :
- edsair.doi.dedup.....bc22862c97c722ae1c91d783c6bab602