Fast Differential Emission Measure Inversion of Solar Coronal Data

Дата и время публикации : 2012-04-27T19:31:59Z

Авторы публикации и институты :
Joseph Plowman
Charles Kankelborg
Petrus Martens

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 22 Pages, 11 Figures; submitted to The Astrophysical Journal. This version (2) includes clarifications in the text and reflects improvements to the DEM code
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR

Краткий обзор статьи: We present a fast method for reconstructing Differential Emission Measures (DEMs) using solar coronal data. On average, the method computes over 1000 DEMs per second for a sample active region observed by the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory (SDO), and achieves reduced chi-squared of order unity with no negative emission in all but a few test cases. The high performance of this method is especially relevant in the context of AIA, which images of order one million solar pixels per second. This paper describes the method, analyzes its fidelity, compares its performance and results with other DEM methods, and applies it to an active region and loop observed by AIA and by the Extreme-ultraviolet Imaging Spectrometer (EIS) on Hinode.

Category: Physics