[Loops] Paper EIS DEM

[Chloé Guennou]

Hello everyone,

ApJ has just accested our paper "Can the DEM constrain the timescale of 
energy deposition in the solar corona?" that may be of interest to you.

Abstract:
"In this paper, the ability of the Hinode/EIS instrument to detect 
radiative signatures of coronal heating is investigated. Recent 
observational studies of AR cores suggest that both the low and high 
frequency heating mechanisms are consistent with observations. 
Distinguishing between these possibilities is important for identifying 
the physical mechanism(s) of the heating. The Differential Emission 
Measure (DEM) tool is one diagnostic that allows to make this 
distinction, through the amplitude of the DEM slope coolward of the 
coronal peak. It is therefore crucial to understand the uncertainties 
associated with these measurements. Using proper estimations of the 
uncertainties involved in the problem of DEM inversion, we derive 
confidence levels on the observed DEM slope. Results show that the 
uncertainty in the slope reconstruction strongly depends on the number 
of lines constraining the slope. Typical uncertainty is estimated to be 
about +/- 1.0, in the more favorable cases. "

You can download a copy at astro-ph until it is officially published by ApJ:

http://arxiv.org/abs/1306.3114

Best regards,
Chloé Guennou.