TY - CONF
T1 - The Role of Heavy Ions as Coronal Diagnostics: Recent Results from Total Solar Eclipse Observations
AU - Habbal, Shadia Rifai
AU - Daw, A. N.
AU - Morgan, H.
AU - Johnson, J.
AU - Druckmuller, M.
AU - Druckmullerova, H.
AU - Scholl, I.
AU - Arndt, M. B.
AU - Pevtsov, A.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Recent advancements in coronal imaging capabilities and image processing
techniques, have led to new diagnostic capabilities for the exploration
of the solar atmosphere during total solar eclipses. In particular, the
suite of Fe spectral lines in the visible and near infrared, namely Fe
XIV 5303, Fe X 6374 A, Fe XI 7892 A, and Fe XIII 10747 A, together with
continuum white light emission, continue to unveil the intricate
topology of the magnetic field, density structures and temperature
distribution in the solar corona. These spectral lines are also yielding
new insights into the role of heavy ions as diagnostics of the coronal
plasma. This presentation will focus on the surprising results from the
eclipse observations of 2006 and 2008. With observations in H alpha,
neutral helium He I 5876 A and the Fe lines representing four different
ionization states of iron, it is shown how the distribution of neutrals
and heavy ions in select magnetic structures in the corona, provides new
insights into the physics of the coronal plasma, with implications for
models of coronal heating processes. These observations also shed light
on the source regions and properties of neutrals and minor ions measured
in interplanetary space.
AB - Recent advancements in coronal imaging capabilities and image processing
techniques, have led to new diagnostic capabilities for the exploration
of the solar atmosphere during total solar eclipses. In particular, the
suite of Fe spectral lines in the visible and near infrared, namely Fe
XIV 5303, Fe X 6374 A, Fe XI 7892 A, and Fe XIII 10747 A, together with
continuum white light emission, continue to unveil the intricate
topology of the magnetic field, density structures and temperature
distribution in the solar corona. These spectral lines are also yielding
new insights into the role of heavy ions as diagnostics of the coronal
plasma. This presentation will focus on the surprising results from the
eclipse observations of 2006 and 2008. With observations in H alpha,
neutral helium He I 5876 A and the Fe lines representing four different
ionization states of iron, it is shown how the distribution of neutrals
and heavy ions in select magnetic structures in the corona, provides new
insights into the physics of the coronal plasma, with implications for
models of coronal heating processes. These observations also shed light
on the source regions and properties of neutrals and minor ions measured
in interplanetary space.
UR - http://hdl.handle.net/2160/10570
M3 - Abstract
SP - 4
ER -