Publications in Comparative Magnetospheres

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Publications in Comparative Magnetospheres

• Siscoe, G. L. Towards a comparative theory of
  magnetospheres, in Solar System Plasma Physics,
  Vol. II, edited by C. F. Kennel, L. J.
  Lanzerotti, and E. N. Parker, North-Holland
  Publishing Co., 299-402, 1979.
• Lanzerotti, L. J., and S. M. Krimigis
  Comparative magnetospheres, Physics Today. 38,
  24-32, 1985.
• Vasyliunas, V. M. Comparative magnetospheres
  Lessons for Earth, Advances in Space Research,
  33, 2113-2120, 2004.
• Blanc, M., R. Kallenbach, and N. V. Erkaev Solar
  system magnetospheres, Space Science Reviews,
  116, 227-298, 2005.
• Russell, C. T. New horizons in planetary
  magnetospheres, Advances in Space Research, 37,
  1467-1481, 2006.

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Comparative CME and Magnetosphere Phenomena

• Magnetosheath
• Draping
• Turbulence
• Accretion/reconnection
• ICME/Magnetosphere
• In-transit cooling
• interchange reconnection
• CME/Plasmoid Dynamics
• Acceleration propagation
• Close-Field-Line Heating
• Flares and ring current
• Eruption Dynamics
• Reconnection instability scenarios
• Energetic Particles
• Shock acceleration
• Reconnection acceleration
• Plasmoid-Like Structures
• BBFs
• Solar wind examples

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Comparative CME and Magnetosphere Phenomena

• Pre-Eruption
• Flux cancellation for CMEs flux buildup for
  substorms
• Eruption
• Instability mechanisms for CMEs and substorms
• Post-Eruption
• Heating on closed field lines
• Current sheets and blobs
• CME/plasmoid acceleration and propagation
• In-transit cooling and magnetic transfiguration
• Particle Energization
• Reconnection and shock models
• Sheath Phenomena
• Draping, turbulence, accretion and reconnection

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Reconnection in Solar Corona and Geotail
Same absolute scale in both pictures
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Draping in Terrestrial ICME Magnetosheaths
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ICME
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Kaymaz and Siscoe 2006
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Dawn-Dusk Asymmetry in B Model and IMP 8
Data Compared
Weak field on dawn side
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Lat 10o
1.3 AU
East Flank Weak
East-West Asymmetry in B In ICMEs
West Flank Strong
B (nT)
CCMC-Cone Model
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Westside CMEs More Geoeffective
ZHANG ET AL. SOLAR SOURCES OF MAJOR GEOMAGNETIC
STORMS (2003)
WANG ET AL. GEOEFFECTIVE HALO CMES (2002)
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Dawn-Dusk Draping Asymmetry in IMF Bz
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East-West ICME Draping Asymmetry in IMF Bz
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East-West ICME Draping Asymmetry in IMF Bz
Siscoe, MacNeice and Odstrcil 2007
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Magnetosheath Accretion
IMF clock angle
Computed Field Strength on Stagnation Streamline
in Earths Magnetosheath (no accretion)
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Magnetosheath Accretion
Measured Field Strength Near Stagnation Streamli
ne in ICME Magnetosheaths (accretion)
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Similar CME and Substorm Eruption Scenarios
Directly Driven
Blocking-Release
CME
Thermal
Dynamo
SUBSTORM
Blast
Drctly Drvn
IMF
Connec.
Recon.
Inst.
Config.
Inst.
Blocking-Release
Current.
Inst.
Mass
Exchng.
MIC
Inst.
Dis- eqlb.
Triggered.
Diseqlib.
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Example
CME
Substorm
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Melon-Seed Magnetic Geometry
Mikic and Linker
Low Zhang
Forbes
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Bo
Ba
Forbes Model
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Velocity Profiles Obtained with Melon-Seed Model
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Bo (G) Ba/Bo Density Ratio Speed (km/s) Density (cm-3)
Green Circle ? 40 0.9 0.26 887 1.0
Turquoise Circle? 25 0.9 0.3 754 1.5
Red Circle ? 15 0.8 0.4 693 1.8
Orange Circle ? 5 0.8 0.5 516 4.5
Purple Square ? 20 0.3 1.0 678 2.0
Purple Diamond ? 30 0.11 2.0 634 2.3
Purple Cross ? 40 .065 3.0 628 2.5
Green Cross ? 15 0.33 3.0 827 9.4
Red Asterisk ? 15 0.53 2.0 649 2.3
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Geotail Plasmoid
Interplanetary CME
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Comparative CME and Magnetosphere Phenomena

• Pre-Eruption
• Forbes/Hughes/Bhattacharjee
• Eruption
• Forbes/Hughes/Bhattacharjee/Reeves
• Post-Eruption
• Raymond/Golub/Korreck/Reeves/Spence
• van Ballegooijen/Hughes
• Forbes/Siscoe/Goodrich/Raeder
• Owens/Crooker/Siscoe
• Particle Energization
• Lee/Schwadron/Korreck
• Sheath Phenomena
• Farrugia/Smith/Richardson/ Siscoe/Crooker

• Pre-Eruption
• Flux cancellation for CMEs flux buildup for
  substorms
• Eruption
• Instability mechanisms for CMEs and substorms
• Post-Eruption
• Heating on closed field lines
• Current sheets and blobs
• CME/plasmoid acceleration and propagation
• In-transit cooling and magnetic transfiguration
• Particle Energization
• Reconnection and shock models
• Sheath Phenomena
• Draping, turbulence, accretion and reconnection