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@article{Barnes:2016:2/217,
author = {Barnes, WT and Cargill, PJ and Bradshaw, SJ},
doi = {2/217},
journal = {Astrophysical Journal},
title = {Inference of heating properties from "hot" non-flaring plasmas in active region cores. II. nanoflare trains},
url = {http://dx.doi.org/10.3847/1538-4357/833/2/217},
volume = {833},
year = {2016}
}
TY - JOUR
AB - Despite its prediction over two decades ago, the detection of faint, high-temperature (\hot") emissiondue to nano are heating in non- aring active region cores has proved challenging. Using an e cienttwo- uid hydrodynamic model, this paper investigates the properties of the emission expected fromrepeating nano ares (a nano are train) of varying frequency as well as the separate heating of electronsand ions. If the emission measure distribution (EM(T)) peaks atT=Tm, we nd that EM(Tm) isindependent of details of the nano are train, and EM(T) above and belowTmre ects di erent aspectsof the heating. BelowTmthe main in uence is the relationship of the waiting time between successivenano ares to the nano are energy. AboveTmpower-law nano are distributions lead to an extensiveplasma population not present in a monoenergetic train. Furthermore, in some cases characteristicfeatures are present in EM(T). Such details may be detectable given adequate spectral resolution anda good knowledge of the relevant atomic physics. In the absence of such resolution we propose somemetrics that can be used to infer the presence of \hot" plasma.
AU - Barnes,WT
AU - Cargill,PJ
AU - Bradshaw,SJ
DO - 2/217
PY - 2016///
SN - 1538-4357
TI - Inference of heating properties from "hot" non-flaring plasmas in active region cores. II. nanoflare trains
T2 - Astrophysical Journal
UR - http://dx.doi.org/10.3847/1538-4357/833/2/217
UR - http://hdl.handle.net/10044/1/45989
VL - 833
ER -