1 / 13

ILWS 12 June 2007 ASI Program Ester Antonucci

This document outlines the participation and contributions to various space missions focused on solar system exploration and heliophysics, including SOHO, Ulysses, and Solar Orbiter. It details advanced diagnostic tools like magnetohydrodynamic modeling, spectroscopic diagnostic codes, and studies on solar wind turbulence. The role of multiwavelength coronagraphy, the analysis of coronal magnetic fields, and the development of instruments for upcoming missions is emphasized. The document also highlights key collaborations and data archiving initiatives to enhance solar research.

malaya
Télécharger la présentation

ILWS 12 June 2007 ASI Program Ester Antonucci

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ILWS 12 June 2007ASI ProgramEster Antonucci

  2. Participation In Flight Missions • SOHO (UVCS) • Ulysses • CLUSTER • DOUBLE STAR • Participation In Data Analysis • TRACE • HINODE • (STEREO)

  3. Solar System Exploration: Sun (Heliophysics) • Kickoff 1 June 2007 • Magneto-hydrodynamic modelling • Diagnostic tools aimed to address the solar and heliospheric physics issues: • MHD codes to interpret the coronal and heliospheric plasma processes. • Spectroscopic diagnostic codes for interpreting the UV, EUV ed X emission from optically thin plasmas (non-equilibrium ionization etc.). • Turbulence in the solar wind plasma. • Space Weather • Origin of solar perturbations (space data + radio, visible, cosmic rays, magnetic field) • SEP effects • Magnetospheric network data analysis. • Prototypes development • Multiwavelength coronagraphy for the extended corona (Solar Orbiter) • UV, XUV spectrometry for the inner corona observation (Solar Orbiter) • UV polarimetry for coronal magnetic field observations (SMESE,COMPASS) • Plasma analyzer (Solar Orbiter) • Energetic particle analyzer (Solar Orbiter)

  4. Coronal magnetic field Coronal images give qualitative information about the field topology. Extrapolation Techniques: potential field: extrapolation to the corona of photospheric magnetic field in the hp: no electric currents. force-free field: hp: electric currents can flow only along magnetic field lines so to exert no magnetic force on the coronal plasma. Observational UV spectropolarimetry. Hanle effect: resonance polarization in spectral lines is deeply modified by the presence of a magnetic field (UV Lyman alpha series, OVI 1032, allowed coronal lines which are radiatively excited by the radiation coming from the solar disk) (Cosmic Vision 15-25)

  5. Solar System Exploration: Sun (Heliosphysics) cont • Laboratory developments • Optics for coronal spectro-imaging in the UV/Visibile • Multilayer coating in the EUV • Wide angle coronagraphs formed by nanosatellites • Facility for coronagraphic instrumentation calibration • Upgrade of facility for testing plasma analyzers. • Observations and analysis • Instrumentation operating in space • Future Missions • High energy particles (LISA) • Coronal magnetic field measurements (COMPASS) • Magnetospheric missions

  6. Helium Resonance Scatter in the Corona and Heliosphere Program: SCORE NASA LWS Program • SCORE (Sounding Coronagraphic Experiment) in the frame of the NASA ‘Living with a Star’ program • Launch October 2007 Firsts • Helium measurement in the solar corona • Test of multiwavelength coronagraphy in view of the SolarOrbiter (visible, H, He)

  7. Missione SOLAR ORBITER • Solar Orbiter first circumsolar mission of the ‘International Living with a Star’ program. • Solar Orbiter last mission of the ‘Cosmic Vision’ ESA program.

  8. Possible italian contributions to Solar OrbiterLetters of Intent 15 Sep 2006 • CIAO (Coronal Imaging Advanced Observations) • EUS (Extreme Ultraviolet Spectrometer) • DPD (Dust Particle Detector) • NPD (Neutral Particle Detector) • SWA (Solar Wind Plasma Analyzer) • HET(High Energy Telescope)

  9. Interests in other missions • ASPICS Coronagraphy • SMESE Coronal magnetic field system • KUAFU AUV-visible light coronagraphy • Solar Probe Heliospheric imaging

  10. ‘Cosmic Vision 2015-2025’ proposals • Compass (leading role) • Magnetic field measurements in corona and on the disk: UV Visible spectro polarimetry • Spacecrafts in flight formation • Polaris (participation)

  11. z y x COMPASS Formation Flying Spacecrafts “Sunshade” Spacecraft (S-S/C) Payload Spacecraft (P/L-S/C) 100 m

  12. Payload The COMPASS payload will consist of remote sensing instruments with off-limb and on-disk fields-of-view (FOV). - Off-limb FOV: • UV coronal spectro-polarimeter (90-120 nm) • Visible & IR coronal spectro-polarimeter (0.5-1 m) - On-Disk FOV: • UV spectro-polarimeter (100-200 nm) • EUV imaging-polarimeter (17 nm) • Dopplergraph-magnetograph imager COMPASS & POLARIS

  13. DATA ARCHIVES • SOLAR (SOHO archive) • SOLARNET (italian solar archives network) • EGSO (SEC,DSO)

More Related