CHIANTI - An atomic database for emission lines. X. Spectral atlas of a cold feature observed with Hinode-EIS - Astrophysics > Solar and Stellar AstrophysicsReportar como inadecuado




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Abstract: In this work we report on a cold, bright portion of an active region observedby Hinode-EIS. The emitting plasma was very bright at transition regiontemperatures, and the intensities of lines of ions formed between 10^5-10^6 Kwere enhanced over normal values. The data set constitutes an excellentlaboratory where the emission of transition region ions can be tested. We firstdetermine the thermal structure of the observed plasma, and then we use it 1to develop a spectral atlas, and 2 to assess the quality of CHIANTI atomicdata by comparing predicted emissivities with observed intensities. We identifyseveral lines never observed before in solar spectra, and find an overallexcellent agreement between CHIANTI predicted emissivities and observations.



Autor: E. Landi, P.R. Young

Fuente: https://arxiv.org/







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