Solar Physics Task GroupSolar Physics Task Group ILWS-STG@sun.Stanford.EDUILWS-STG@sun.Stanford.EDU

report written by the chairTodd Hoeksema

reported by Werner Schmutz

International Living With a StarInternational Living With a Star

June 12-13, 2007June 12-13, 2007

Hinode Image of Solar Flare

Solar Task Group Activities

• Meeting of Opportunity at COSPAR

• Membership Finalized

• Charter Proposed

• Some Issues Identified

• Plan to meet at ILWS in September

Solar Task Group Principles

• Emphasize system science

• Highlight critical ILWS requirements for Solar

• Facilitate collaboration & partnership

• Identify programs, needs, gaps

• Enable access to solar science data

• Efficiently use agency resources

• Capitalize on strengths of each partner

• Link pure and applied components

Solar Task Group Incomplete List of Issues

• Integration, coordination, communication– Science, techniques, programs, agencies, nations– Missions – e.g KuaFu, Solar Orbiter, Solar Sentinels

• Solar interior, solar atmosphere, solar wind, events, irradiance, effects

• 3d Magnetic field, solar far side, cycle & dynamo, active regions, flares, CMEs, energetic particles, coronal topology, heliospheric evolution

• radio science, spectroscopy, forecasting, modeling, ground & space based observations, continuity

Solar Task Group Incomplete List of Issues

• Some of the Crucial ILWS Observations– Irradiance, coronagraph, in situ solar wind,

high resolution photosphere, global solar field, spectroscopy, transition region and corona, IR observations

• Some Key ILWS Modeling & Theory Needs– Stereoscopic modeling, Solar wind modeling,

MHD modeling, Particle acceleration, Event initiation, Event Forecasting, Transition to Operations

Solar Task Group Plans

• Complete program inventory by fall 2007

• At fall meeting continue efforts to– List high priority ILWS solar observations– Identify strong and weak areas in ILWS theory

& modeling efforts– Suggest opportunities for interagency

collaboration– Promote scientific cooperation on ILWS topics

Solar Task Group MembersILWS-STG@sun.Stanford.EDU

• J. Todd Hoeksema <Todd@sun.stanford.edu>• Ashok Ambastha <Ambastha@prl.res.IN>• Thierry Appourchaux <Thierry.Appourchaux@ias.u-psud.FR>• Joan Burkepile <Iguana@hao.ucar.edu>• Paul Cally <Paul.Cally@sci.monash.edu.AU>• Paul Charbonneau <PaulChar@astro.UMontreal.CA>• Richard Harrison <R.A.Harrison@rl.ac.UK>• Masayoshi Kojima <Kojima@stelab.nagoya-u.ac.JP>• Vladimir Kuznetsov <KVD@izmiran.RU>• Marcos Machado <Machado@conae.gov.AR>• Werner Schmutz <Werner.Schmutz@pmodwrc.CH>• ChuanYi Tu <ChuanYiTu@pku.edu.CN>• Stephen White <White@astro.umd.edu>

From the European Solar Community

4 Solar proposals to ESA‘s Cosmic Vision programme

• CMM Coronal Magnetic Mapper coronal magnetic field diagnostics

• HIRISE – HIgh Resolution Imaging and Spectroscopy Explorer A New Generation Ultra High Resolution and Coronagraphic Solar Physics Mission)

• DynaMICCS – Dynamics and Magnetism from the Inner Core to the Corona of the Sun (A mission for a complete and continuous view of the Sun dedicated to magnetism, space weather and space climate)

• POLARIS 3D structure of the solar magnetic field, convection, circulation flows, solar wind, and radiance.

• … ?

Swiss contributions to ILWS solar irradiance monitoring

(PMOD/WRC is building hardware)

today

TSI & optical

TSI & optical

UV & FUV

TSI & UV & optical

SOVIM/ISS = VIRGO/SoHO:Total Solar Irradiance + optical filter radiometers

SOLAR on COLUMBUS on ISS

• LYRA– UV radiometer– PI: JF Hochedez– LYRA.oma.be

• SWAP– EUV imager at 17.5

nm– PIs: D Berghmans &

JM Defise– SWAP.oma.be

Sun

PROBA2: Two solar instruments

Filter Radiometers (high measuring cadence) reconstruction of the solar UV spectrum

LYRA/PROBA2 (launch 2008)

PREMOS-PFR/PICARD (launch 2009)

LYRA: 10 (Zr), 30 (Al), 125, 215215 nm

PREMOS: 215215, 268, 535, 607, 782

nm

LYRA/PROBA2 – 4 channel solar irradiance:2 FUV, 2 UV wavelengths –

Integration of LYRA on PROBA2

5.3.2007

Silvio Koller

LYRA PM

Total Solar Irradianceobservations between 2006 and 2012

ACRIM III 2000 - ?

VIRGO/SOHO 1996 - 2007 - 2009

TIM/SORCE 2003 – 2008 - (GLORY?)

SOVIM/ISS 2008 - 2009 ?

PREMOS-TSI/PICARD 2009 - 2012 - ?SOVAP-TSI/PICARD (B)

TSI/PROBA3 ???

RAD/KuaFu-A 2012RAD – a TSI experiment comprising:

SIM = Solar Irradiance Monitor (CN)DOR = Davos Observatory Radiometer (CH)

PICARDPREMOS – SOVAP – SODISM

Total Solar Irradiance

Filter Radiometers

PREMOS/PICARD proto type finished

Thank you for your attention!