MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements

Haw, Magnus A.; Bellan, Paul M.

doi:10.1002/2017gl074505

Title: MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements

Journal Article · 31 August 2017 · Geophysical Research Letters

DOI: https://doi.org/10.1002/2017gl074505 · OSTI ID:1537298

^[1];

^[2]

California Inst. of Technology (CalTech), Pasadena, CA (United States); DOE/OSTI
California Inst. of Technology (CalTech), Pasadena, CA (United States)

Laboratory measurements of B(x,t) in a volume enclosing portions of two arched flux ropes show flux rope collimation driven by gradients in axial current density. These measurements verify the three predictions of a proposed MHD collimation mechanism: (1) axial magnetic forces exist in current channels with spatially varying minor radius, (2) these forces can drive counterpropagating axial flows, and (3) this process collimates the flux rope. As a result, this mechanism may explain the axial uniformity of solar loops and is relevant to other systems with current channels of varying minor radius such as solar prominences and astrophysical jets.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: California Inst. of Technology (CalTech), Pasadena, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: FG02-04ER54755; SC0010471

OSTI ID:: 1537298

Alternate ID(s):: OSTI ID: 1574934; OSTI ID: 1397314

Journal Information:: Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 19 Vol. 44; ISSN 0094-8276

Publisher:: American Geophysical UnionCopyright Statement

Country of Publication:: United States

Language:: English

References (31)

Co- and counter-helicity interaction between two adjacent laboratory prominences Hansen, J. F.; Tripathi, S. K. P.; Bellan, P. M. Physics of Plasmas, Vol. 11, Issue 6 https://doi.org/10.1063/1.1724831	journal	June 2004
FIRST THREE-DIMENSIONAL RECONSTRUCTIONS OF CORONAL LOOPS WITH THE STEREO A + B SPACECRAFT. IV. MAGNETIC MODELING WITH TWISTED FORCE-FREE FIELDS Aschwanden, Markus J.; Wuelser, Jean-Pierre; Nitta, Nariaki V. The Astrophysical Journal, Vol. 756, Issue 2 https://doi.org/10.1088/0004-637X/756/2/124	journal	August 2012
The Electrical Current Density Vector in the Inner Penumbra of a Sunspot Puschmann, K. G.; Cobo, B. Ruiz; Pillet, V. Martínez The Astrophysical Journal, Vol. 721, Issue 1 https://doi.org/10.1088/2041-8205/721/1/L58	journal	September 2010
Magnetically Driven Flows in Arched Plasma Structures Stenson, E. V.; Bellan, P. M. Physical Review Letters, Vol. 109, Issue 7 https://doi.org/10.1103/PhysRevLett.109.075001	journal	August 2012
Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope Yan, Xiao-Li; Xue, Zhi-Ke; Xiang, Yong-Yuan Research in Astronomy and Astrophysics, Vol. 15, Issue 10 https://doi.org/10.1088/1674-4527/15/10/009	journal	October 2015
The magnetic field configuration of a solar prominence inferred from spectropolarimetric observations in the He i 10 830 Å triplet Orozco Suárez, D.; Asensio Ramos, A.; Trujillo Bueno, J. Astronomy & Astrophysics, Vol. 566 https://doi.org/10.1051/0004-6361/201322903	journal	June 2014
Why current-carrying magnetic flux tubes gobble up plasma and become thin as a result Bellan, P. M. Physics of Plasmas, Vol. 10, Issue 5 https://doi.org/10.1063/1.1558275	journal	May 2003
Coronal loop Expansion Properties Explained Using Separators Plowman, Joseph E.; Kankelborg, Charles C.; Longcope, Dana W. The Astrophysical Journal, Vol. 706, Issue 1 https://doi.org/10.1088/0004-637X/706/1/108	journal	October 2009
Dynamic and Stagnating Plasma Flow Leading to Magnetic-Flux-Tube Collimation You, S.; Yun, G. S.; Bellan, P. M. Physical Review Letters, Vol. 95, Issue 4 https://doi.org/10.1103/PhysRevLett.95.045002	journal	July 2005
OBSERVATIONS OF PLASMA UPFLOW IN A WARM LOOP WITH HINODE /EIS Tripathi, Durgesh; Mason, Helen E.; Del Zanna, Giulio The Astrophysical Journal, Vol. 754, Issue 1 https://doi.org/10.1088/2041-8205/754/1/L4	journal	July 2012
On the Anisotropy in Expansion of Magnetic flux Tubes in the Solar Corona Malanushenko, A.; Schrijver, C. J. The Astrophysical Journal, Vol. 775, Issue 2 https://doi.org/10.1088/0004-637X/775/2/120	journal	September 2013
Criteria for Scaled Laboratory Simulations of Astrophysical MHD Phenomena Ryutov, D. D.; Drake, R. P.; Remington, B. A. The Astrophysical Journal Supplement Series, Vol. 127, Issue 2 https://doi.org/10.1086/313320	journal	April 2000
A laboratory plasma experiment for studying magnetic dynamics of accretion discs and jets Hsu, S. C.; Bellan, P. M. Monthly Notices of the Royal Astronomical Society, Vol. 334, Issue 2 https://doi.org/10.1046/j.1365-8711.2002.05422.x	journal	August 2002
PERSISTENT DOPPLER SHIFT OSCILLATIONS OBSERVED WITH HINODE /EIS IN THE SOLAR CORONA: SPECTROSCOPIC SIGNATURES OF ALFVÉNIC WAVES AND RECURRING UPFLOWS Tian, Hui; McIntosh, Scott W.; Wang, Tongjiang The Astrophysical Journal, Vol. 759, Issue 2 https://doi.org/10.1088/0004-637X/759/2/144	journal	October 2012
Physics of Solar Prominences: II—Magnetic Structure and Dynamics Mackay, D. H.; Karpen, J. T.; Ballester, J. L. Space Science Reviews, Vol. 151, Issue 4 https://doi.org/10.1007/s11214-010-9628-0	journal	February 2010
Coronal Loop Widths and Pressure Scale Heights Petrie, G. J. D. The Astrophysical Journal, Vol. 649, Issue 2 https://doi.org/10.1086/506905	journal	October 2006
Elementary Loop Structures in the Solar Corona Analyzed from TRACE Triple‐Filter Images Aschwanden, Markus J.; Nightingale, Richard W. The Astrophysical Journal, Vol. 633, Issue 1 https://doi.org/10.1086/452630	journal	November 2005
The Magnetic Structure of Coronal Loops Observed by TRACE Fuentes, M. C. Lopez; Klimchuk, J. A.; Demoulin, P. The Astrophysical Journal, Vol. 639, Issue 1 https://doi.org/10.1086/499155	journal	March 2006
Evolving Active Region Loops Observed with the Transition Region and Coronal explorer . II. Time‐dependent Hydrodynamic Simulations Warren, Harry P.; Winebarger, Amy R.; Mariska, John T. The Astrophysical Journal, Vol. 593, Issue 2 https://doi.org/10.1086/376678	journal	August 2003
Scaling laws and Temperature Profiles for Solar and Stellar Coronal Loops with Non-Uniform Heating Martens, P. C. H. The Astrophysical Journal, Vol. 714, Issue 2 https://doi.org/10.1088/0004-637X/714/2/1290	journal	April 2010
Anti-Parallel euv Flows Observed Along Active Region Filament Threads with hi-c Alexander, Caroline E.; Walsh, Robert W.; Régnier, Stéphane The Astrophysical Journal, Vol. 775, Issue 1 https://doi.org/10.1088/2041-8205/775/1/L32	journal	September 2013
Gravitational steady states of solar coronal loops Sugiyama, Linda E.; Asgari-Targhi, M. Physics of Plasmas, Vol. 24, Issue 2 https://doi.org/10.1063/1.4975311	journal	February 2017
Thermal instability of electrolytic capacitor bank used for gas puff valve Bellan, P. M. Review of Scientific Instruments, Vol. 73, Issue 8 https://doi.org/10.1063/1.1488677	journal	August 2002
Coronal Scale-Height Enhancement by Magnetohydrodynamic Waves Litwin, C.; Rosner, R. The Astrophysical Journal, Vol. 506, Issue 2 https://doi.org/10.1086/311656	journal	October 1998
Modeling the Large‐Scale Structures of Astrophysical Jets in the Magnetically Dominated Limit Li, Hui; Lapenta, Giovanni; Finn, John M. The Astrophysical Journal, Vol. 643, Issue 1 https://doi.org/10.1086/501499	journal	May 2006
Solar Magnetic Flux Ropes Filippov, Boris; Martsenyuk, Olesya; Srivastava, Abhishek K. Journal of Astrophysics and Astronomy, Vol. 36, Issue 1 https://doi.org/10.1007/s12036-015-9321-5	journal	March 2015
Evidence for Nonuniform Heating of Coronal Loops Inferred from Multithread Modeling of TRACE Data Aschwanden, Markus J.; Nightingale, Richard W.; Alexander, David The Astrophysical Journal, Vol. 541, Issue 2 https://doi.org/10.1086/309486	journal	October 2000
Solar Force-free Magnetic Fields Wiegelmann, Thomas; Sakurai, Takashi Living Reviews in Solar Physics, Vol. 9 https://doi.org/10.12942/lrsp-2012-5	journal	January 2012
A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953 DeRosa, Marc L.; Schrijver, Carolus J.; Barnes, Graham The Astrophysical Journal, Vol. 696, Issue 2 https://doi.org/10.1088/0004-637X/696/2/1780	journal	April 2009
PATTERNS OF FLOWS IN AN INTERMEDIATE PROMINENCE OBSERVED BY HINODE Ahn, Kwangsu; Chae, Jongchul; Cao, Wenda The Astrophysical Journal, Vol. 721, Issue 1 https://doi.org/10.1088/0004-637X/721/1/74	journal	August 2010
Solar Prominences: Observations Parenti, Susanna Living Reviews in Solar Physics, Vol. 11 https://doi.org/10.12942/lrsp-2014-1	journal	January 2014

Cited By (1)

Experiments and models of MHD jets and their relevance to astrophysics and solar physics Bellan, Paul M. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5009571	journal	May 2018

Similar Records

Laboratory study of low-beta forces in arched, line-tied magnetic flux ropes

Dataset · 2016 · OSTI ID:1367081

Myers, Clayton; Yamada, Masaaki; Ji, Hantao; +2 more

Laboratory demonstration of slow rise to fast acceleration of arched magnetic flux ropes

Journal Article · 2016 · Geophysical Research Letters · OSTI ID:1469332

Ha, Bao N.; Bellan, Paul M.

SOLAR PROMINENCES EMBEDDED IN FLUX ROPES: MORPHOLOGICAL FEATURES AND DYNAMICS FROM 3D MHD SIMULATIONS

Journal Article · 2016 · Astrophysical Journal · OSTI ID:22518529

Terradas, J.; Soler, R.; Oliver, R.; +2 more

Related Subjects

36 MATERIALS SCIENCE
geology
flux rope
MHD
coronal loops
laboratory plasma

Title: MHD Collimation Mechanism in Arched Flux Ropes Characterized Using Volumetric, Time-Dependent B-Vector Measurements

Citation Formats

References (31)

Cited By (1)

Similar Records

Related Subjects