IHY Workshop April 2004 Eberhard M

1
Heliospheric Working Group

• Eberhard Möbius (for Gary Zank), Justin Kasper
• Chuck Smith (invitation charge)John
  Richardson, Eric Christian, Nancy Crooker, Marcia
  Neugebauer, Hans Müller, Joe Giacalone, John
  Bieber
• Emissaries in Bob Lin, B. C. Low out
  John Bieber, Nancy Crooker

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Goals

• Carry out the Message (and Connect)Heliospheric
  Science contributes to wider community (Astronomy
  Origins Solar System exploration)Heliospheric
  Science is about Exploration (general public)
• Understand Our Home System from the Sun to its
  Boundary with the Interstellar Medium
• Maintain Existing Assets in Space Our Great
  Observatory Heliospheric Fleet
• Improve Consolidate Global Heliospheric Models
  Current plasmaneutrals plasmamagnetic
  field
• Need all combined

3
Campaigns

• 3D-Heliosphere at the A- Solar Minimum (1 AU -
  VLISM) (3Do) (E.M., C.S., ) Existing
  Assets ACE, Voyager (distance and latitude),
  Ulysses (fast lat. scanpolar passes), SOHO,
  Wind, Cassini, MGS, IMAGE, Archived Data
  Pioneers, Galileo, New STEREO, Ground
  Observatories Neutron Monitors,
• Modeling Multi-fluid Kinetic models,

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Campaigns

• 3D-Heliosphere at the A- Solar Minimum (Sun - 2
  AU) (3Di) (J.K. Existing
  Assets ACE, Ulysses (fast lat. scanpolar
  passes), SOHO, Wind, RHESSI, SMEI, MGS Archived
  Data Helios, IMP-8, ISEE-3, PVO, New Solar-B
  STEREO MESSENGERGround Observatories Low Freq.
  Radio Observatories, IPS, Optical Solar
  Observatories, µ-DetectorsModeling 3D-MHD,
  Potential Field, Kinetic,

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Campaigns

• Comparative interplanetary shock study (CS)
  (planetary, comet, interplanetary, Termination,
  )Assets ACE, Cluster, RHESSI, SOHO, Ulysses,
  Voyager, Wind, Archival, Modeling
• - Intercalibration of SW observations (SWI)
  (J.R.) (consolidate distribution
  functions make the data available! Assets
  Wind, ACE, SOHO, Ulysses, Voyager,
• - Study of the Heliosphere near the Termination
  Shock (TS)Assets Voyager, theory, modeling

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Questions

• - Provide a consistent view of the 3D
  heliosphere (modeling from corona to ISM)
  (3Di, o)
• What is the SW structure as a function of
  latitude and distance? (Voyager at higher
  latitude and distance function of cycle
  difference A and A-) (3Di, o, SWI) -
  What is the 3D structure of the magnetic field in
  the quiet heliosphere? (3Di, o)
• - What are the heliospheric signatures of the
  global magnetic field reversal in each 11-year
  cycle? (3Di, o)
• How does the interstellar gas in the inner
  heliosphere change with the solar cycle?
  (3Do, i)
• - How do the photospheric, coronal, and
  interplanetary magnetic fields relate to each
  other? (3Di, o)

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Questions

• - What is the high energy radiation environment
  and how does it change over time? (space
  weather) (3Do, i)
• - What are the connections between GCRs and
  climate (3Do)
• - What are the causes of GCR modulation?
  (3Do)
• - What are the changes of the GCR spectrum?
  (3Do)
• How does interplanetary acceleration change with
  solar cycle? (CS, 3Di)
• What is the nature of the heliosphere near the
  TS? (TS, CS)
• What are interplanetary signatures and effects
  of reconnection? (mag. f., composition)
  (3Di)
• What are the properties of shocks? (CS, SWI)
• What is the nature of heliospheric turbulence?
  (3Di,o, TS)

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Small widely distributed Observatories
1) Neutron Monitors (make use of all around the
world, fill gaps stability of neutron monitors)
(John B. Cliff L.?) 2) µ-monitors 30
GeV 100k (John B.) 3) Low
Frequency Radio Observatories (also EPO) (Justin
K.) 4) InterPlanetary Scintillation (IPS) 5) Use
of ground observatories for ISM absorption (E.M.
ask Rosine Lallement)1, 2, 3, 4) encourage
other countries to invest in order to get into
front line research assistance with blueprints
and funds for workshops etc. possible3) PI
projects with placing units in other countries
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Education Outreach

• Theme Head above the Atmosphere during the
  IGYHead out of our Home System with IHY
• IHY Planetarium Show on the Heliosphere Voyager
  trip ISM flow through systemSolar System
  through varying ISM
• Use Radio Observatories for EducationNOT
  FINISHED!!!