Speaker
Juan Martinez-Sykora
(BAERI)
Description
The complexity of the chromosphere is due to various regime
changes that take place
across it. Consequently, the interpretation of chromospheric
observations is a
challenging task. It is thus crucial to combine these
observations with advanced
radiative-MHD numerical modeling. Because the photosphere,
chromosphere and
transition region are partially ionized, the interaction
between ionized and neutral
particles has important consequences on the
magneto-thermodynamics of these regions.
We implemented the effects of partial ionization using the
generalized Ohm’s law in
the Bifrost code (Gudiksen et al. 2011) which solves the
full MHD equations with
non-grey and non-LTE radiative transfer and thermal
conduction along magnetic field
lines. The implementation of partial ionization effects
impact our modeled
radiative-MHD atmosphere, such as producing chromospheric
heating and diffusion of
magnetic field into the upper-chromosphere among others. We
will describe, in detail,
the differences in the physical processes and chromospheric
synthetic observations
from simulations with and without ion-neutral interaction
effects. This detailed
description is important for the interpretation of recent
and future chromospheric
observations.
Primary author
Juan Martinez-Sykora
(BAERI)
