Detalles de publicación
PP 09062
On the Magnetic Field of off-limb Spicules
(1) HAO - National Center for Atmospheric Research
(2) IAC - Instituto de Astrofísica de Canarias
(3) Departamento de Astrofísica (Universidad de La Laguna)
(4) CSIC - Consejo Superior de Investigaciones Científicas
Determining the magnetic field related to solar spicules is vital for developing
adequate models of these plasma jets, which are thought to play a key role in
the thermal, dynamic and magnetic structure of the chromosphere. Here we
report on the magnetic properties of off-limb spicules in a very quiet region of
the solar atmosphere, as inferred from new spectropolarimetric observations in
the He I 10830 \AA\ triplet obtained with the Tenerife Infrared Polarimeter. We
have used a novel inversion code for Stokes profiles caused by the joint action of
atomic level polarization and the Hanle and Zeeman effects (HAZEL) to interpret
the observations. Magnetic fields as strong as 40 G were detected in a very
localized area of the slit, which could represent a possible lower value of the field
strength of organized network spicules.
adequate models of these plasma jets, which are thought to play a key role in
the thermal, dynamic and magnetic structure of the chromosphere. Here we
report on the magnetic properties of off-limb spicules in a very quiet region of
the solar atmosphere, as inferred from new spectropolarimetric observations in
the He I 10830 \AA\ triplet obtained with the Tenerife Infrared Polarimeter. We
have used a novel inversion code for Stokes profiles caused by the joint action of
atomic level polarization and the Hanle and Zeeman effects (HAZEL) to interpret
the observations. Magnetic fields as strong as 40 G were detected in a very
localized area of the slit, which could represent a possible lower value of the field
strength of organized network spicules.