Justin Kasper

Review of science achievements

The First Splinter2

The purpose of the first splinter group was to receive input from the community on the following questions: In your view, what is the most compelling and enabling

science that will advance Heliophysics in the next 5-10 years?

In the next 10-20 years?

Goals: Lead in the roadmap with the most compelling science Identify any game-changing recent results develop better ways to portray our Heliophysics goals

and long-term strategy.

Process

Material from each table gathered by member of committee and report written up for each session

Session reports being combinedDescribe initial reaction today

Recent results Anticipated outcomes Unifying science themes Strategic plans for specific science programs

Recent accomplishments

Unexpected ionospheric drivers Impacts of terrestrial weather and tides on the Earth’s

ionosphere. Associations between ionospheric activity and solar wind

variations

Coupling across the bottom boundary between Earth’s atmosphere and the plasma environment (neutral atmosphere, thermosphere, mesosphere) Void regions in PMC images suggest coupling to lower

atmosphere

Signatures of terrestrial weather in the ionosphere?

Recent accomplishments

Measurements of reconnection, including in situ in the solar wind and in the magnetosphere, together with improved simulations. 3-D structure of reconnection.

Better far-side observations of the SunObservations of lower atmosphere drives of upper

atmosphere variability as source of ITM variabilityTermination shock observationsSTEREO observations - CME propagation from the

Sun to the earth.Hinode testing loop models

STEREO/WAVES Radiation belt Dust!

Power law acceleration

CME INITIATION Near-term breakthroughs

What is missing? thousands of CMES, but what causes them? Missing something... Origin may be below surface need to couple interior & surface processes -- (long term)

SOLAR WIND ACCELERATION Near-term breakthrough: Solar probe will help verify models -- best shot

What is missing? Need long term cycle observations: probe gets 1/2 cycle Want more probes -- multi-point onbservations to give --longterm Telemetry is a problem -- heliospheric DSN!

Reconnection long term

Near-term breakthroughs: Reconnection Observations Initiation from SDO -- all transients High time resolution, mutli wavelength Connection betwween short & long time scales, and small/large spatial scales- will be

well done by SDO Intergration between data & modelling

Microphysics & initiation, multi-scale is the most enabling for this topic

what is missing - no spectrograph on SDO Need high spatial, temporal and spectral resolution in space spectra will identify electric current sheets Need in-stiu confirmation of remote sensing diagnostics Any connection with fusion research? Would like to image solar corona in such a way as to connect MMS in-situ

observations to larger scales More connection between great Observatory spacecraft Multi-spacecraft missions working together in a concentrated region Near-solar in-situ measurements from Solar Probe.

Magnetosphere-Ionosphere-Thermosphere

Magnetophere-Ionosphere coupling possible in near term Need global state (mag field, E field), winds Models to couple them together Understanding micro-scale coupling Need IT Storm Probes GEC Mission

Couple observations from constellation of spacecraft Strategic Issues

Simulateneous measurements needed. Difficult with a reduced flight rate. Problem that we are not implementing missions from previous roadmaps Coordination with ground based observations; difficult to get underlying physics SMEX possibilities

Mission for Global IT Coupling Geostationary Imager by solar maximum Composition Changes (photons from Airglow) Synoptic Maps Measurements on order of a degree Science Question – What is the timescale for getting energy from the

magnetosphere into the ionosphere and thermosphere? Drivers from below versus drivers from above

Comparative studies

COMPARITVE INTERNAL SOLAR & STELLAR STRUCTURE & DYNAMICS

Near-Term breakthroughs: Helio & astero-seismology COROT, KEPLER missions to compare sun & stars Depth of CZ, core, source of magnetic activity can be compared

Missing aspects -- more stars, longer time scales Long term -- spatial resoluton for comparisons of higher-degree

modes, more information on CZ, cores, direct imaging of emergence of

stellar magnetic activity 30x30 pixels, 100 microArcsec resolution spectral resolution long-term predictive capability could be achieved. Origin of stellar/solar activity cycles

Compare Earth’s magnetophere to Jupiter’s & Saturn’s magnetosphere

Comparative heliophyiscs Corona to magnetosphere Planetary magnetospheres Heliosphere to astrosphere Sun to Stars

Summary12

Help us identify any missing pieces to this story Spacecraft not under senior review Guest Investigator and other independent research Are advances in some fields not captured by this

process (aerobraking, exoplanets…)

Resources Electronic copy of spreadsheet available Comments and suggestions greatly appreciated

Helio.progress@gmail.com