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Reconstruction of the EUV spectral irradiance Atomic data and model atmosphere structures Margit Haberreiter Veronique Delouille, Benjamin Mampeay , Micha Schoell , Rami Qahwaji, Ilaria Ermolli. Reconstruction of EUV variations. i : concentric rings r i j : class (feature)
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SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Reconstruction of the EUV spectral irradianceAtomic data and model atmosphere structuresMargit HaberreiterVeronique Delouille, Benjamin Mampeay, MichaSchoell, Rami Qahwaji, Ilaria Ermolli
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Reconstruction of EUV variations i: concentric rings ri j: class (feature) Ij:(ri,λ): Intensity for each feature and position on the solar disk
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans EUV reconstruction - Semi-empirical modeling nlevel, nel,nion,… (x,y,z,t) Iterative process I(λ,μ,φ,t) I(λ,μ,φ,t)
SolarModeling (SolMod) code Multi level atoms 373 ions, from H to Ni withioncharge 25 ~14’000+ atomic levels ~170’000+ spectrallines Statisticalequationissolved to getthelevelpopulations Chromosphere and transitionregion Fontenlaet al. ,2009 atmospherestructures -> to beupdated forioncharge 2: fullNLTE (Fontenla et al., 2009) Corona Coronalstructures (Haberreiter, 2011, SoPh) ioncharge>2 opticallythin, i.e. collisions and spontaneous emission (updated to latest Chianti v7.1.9) Line of sightintegrationaccountsforopacity Sphericalsymmetry
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Synthetic EUV Spectra Quiet Corona (QS1) Quiet Coronal Network (QS2) Active Coronal Network (AR1) Hot loops (AR2) Super hot loops (AR3)
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Contribution of chromosphere, transition region and corona
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans SolMod Contrast at EIT passbands Contrast of SOLMOD spectra for the EIT 171 and 195 passbands
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Determination of the intensity centers for each class
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Filling factors from SOHO/EIT Image segmentation of SOHO/ EIT images carried out by ROB (D3.2)
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans SolMod Reconstruction versus SOHO/SEM
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans SolMod Reconstruction versus SOHO/SEM Missing some variability AR2 and AR3 are represented by the brightest model (AR3) Reasons: Background radiation from chromosphere and transition region needs to be added In process for D4.4: using the PSPT filling factors Also analysis from Rami using the MDI analysis
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans Pre-study: Determine the center intensity of each class Missing some variability: Some inter-class variation might be missing -> inherent to the approach
Status of Deliverables under PMOD/WRCs’s responsibility • D4.2 Improved atmosphere structures for the synthesis of the EUV/UV spectrum • D4.3 Improvement of the atomic data set employed in the spectral synthesis • D4.4 Reconstruction and validation of EUV/UV Spectral irradiance based on SOHO/EIT, PSPT/Ca II images • D8.2: Database to disseminate the irradiance time series and segmentation maps
D4.2 Improved atmosphere structures for the synthesis of the EUV/UV spectrum • Main problems indicated with the line formation of EUV/UV spectral lines • Lyman-α✔ • He II 304 nm in progress • He II continuum • (“improvement” not explicitly specified in the proposal)
D4.2: 1. Lyman-α line formation Without AD With AD Schöll, Haberreiter, Schmutz, Shapiro, submitted to A&A AD: AmbipolarDiffussion
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.2: 1. Lyman-α line formation Schöll, Haberreiter, Schmutz, Shapiro, submitted to A&A
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.2: 1. Lyman-α line formation Schöll, Haberreiter, Schmutz, Shapiro, submitted to A&A
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.2: 2. He continuum and He II 304 Å Haberreiter, 2011, Solar Physics
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.2 Improved atmosphere structures for the synthesis of the EUV/UV spectrum • Improvement atmosphere structure for modeling theLyman α line • Decreased temperature in the chromosphere will lead to a decrease in the He II 304 spectral line • He II 30.4 nm calculations are on their way for end of November
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.3 Improvement of the atomic data set employed in the spectral synthesis • Two main points to be addressed: • Update of atomic data of already implemented spectral lines to Chianti 7.1.9 • Implementation of highly ionized ions • Update from Giulio on important lines for the (optically think UV that were not yet implemented in Chianti 7.1.9
D4.3: 1. Update of atomic data of implemented spectral lines to Chianti 7.1.9 • Update of the atomic data set from Chianti 5.2 to Chianti 7.1.9
D4.3: 1. Update of atomic data of implemented spectral lines to Chianti 7.1.9 • Update of the atomic data set from Chianti 5.2 to Chianti 7.1.9
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.3: 1. Update of atomic data of implemented spectral lines to Chianti 7.1.9 • For D4.3: • Compare the calculation of the additional optically thin lines carried out with SOLMOD versus CHIANTI
Status Update WP8 / SOLID Database http://projects.pmodwrc.ch/solid-visualization/makeover/
Future Steps • Use PROBA2/SWAP and PSPT filling factors for reconstruction of the EUV/UV and visible • Use the MDI analysis by Rami for the reconstruction of the UV and visible • Use Picard/SODISM data for reconstruction of the UV and visible
Towards the Recommended SSI time series • SSI fromsemi-empirical modeling • We need to discuss an approach how to determine the error propagation: • the contrast of activity features • filling factor
SOLID First Annual Meeting Margit Haberreiter Oct 14 – 18, 2013, Orléans D4.2: 2. He continuum and He II 304 Å Haberreiter (2011), Solar Physics,274, 473