Formation of episodic magnetically driven radiatively cooled plasma jets in the laboratory
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
We report on experiments in which magnetically
driven radiatively cooled plasma jets were produced by a
1 MA, 250 ns current pulse on the MAGPIE pulsed power
facility. The jets were driven by the pressure of a toroidal
magnetic field in a “magnetic tower” jet configuration. This
scenario is characterized by the formation of a magnetically
collimated plasma jet on the axis of a magnetic “bubble”,
confined by the ambient medium. The use of a radial metallic
foil instead of the radial wire arrays employed in our previous
work allows for the generation of episodic magnetic
tower outflows which emerge periodically on timescales of
∼30 ns. The subsequent magnetic bubbles propagate with
velocities reaching ∼300 km/s and interact with previous
eruptions leading to the formation of shocks.
driven radiatively cooled plasma jets were produced by a
1 MA, 250 ns current pulse on the MAGPIE pulsed power
facility. The jets were driven by the pressure of a toroidal
magnetic field in a “magnetic tower” jet configuration. This
scenario is characterized by the formation of a magnetically
collimated plasma jet on the axis of a magnetic “bubble”,
confined by the ambient medium. The use of a radial metallic
foil instead of the radial wire arrays employed in our previous
work allows for the generation of episodic magnetic
tower outflows which emerge periodically on timescales of
∼30 ns. The subsequent magnetic bubbles propagate with
velocities reaching ∼300 km/s and interact with previous
eruptions leading to the formation of shocks.
Date Issued
2009-01-17
Date Acceptance
2008-12-16
Citation
Astrophysics and Space Science, 2009, 322 (1-4), pp.19-23
ISSN
1572-946X
Publisher
Springer Verlag (Germany)
Start Page
19
End Page
23
Journal / Book Title
Astrophysics and Space Science
Volume
322
Issue
1-4
Copyright Statement
The final publication is available at Springer via https://dx.doi.org/10.1007/s10509-009-9981-1
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
ASTRONOMY & ASTROPHYSICS
Jets
Protostars
Magnetic tower
Hydrodynamic jet
Young stellar object
YSO jet
Jet-ambient interaction
Radial foil
z-pinch
Magnetic field
Z-PINCH
OUTFLOWS
DISCS
TOWER
STARS
Publication Status
Published