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ALMA and IRIS Observations of the Solar Chromosphere I: an On-Disk Type II Spicule View all abstracts by submitter

Georgios Chintzoglou   Submitted: 2020-12-13 19:25

We present observations of the solar chromosphere obtained simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph (IRIS). The observatories targeted a chromospheric plage region of which the spatial distribution (split between strongly and weakly magnetized regions) allowed the study of linear-like structures in isolation, free of contamination from background emission. Using these observations in conjunction with a radiative magnetohydrodynamic 2.5D model covering the upper convection zone all the way to the corona that considers non-equilibrium ionization effects, we report the detection of an on-disk chromospheric spicule with ALMA and confirm its multithermal nature.

Authors: Georgios Chintzoglou, Bart De Pontieu, Juan Martínez-Sykora, Viggo Hansteen, Jaime de la Cruz Rodríguez, Mikolaj Szydlarski, Shahin Jafarzadeh, Sven Wedemeyer, Timothy S. Bastian and Alberto Sainz Dalda
Projects: ALMA,IRIS,SDO-AIA,SDO-HMI

Publication Status: ApJ (in press)
Last Modified: 2020-12-15 21:09
Go to main E-Print page  ALMA and IRIS Observations of the Solar Chromosphere II: Structure and Dynamics of Chromospheric Plage  Evolution of a Steamer-Blowout CME as Observed by Imagers on  Parker Solar Probe  and the Solar Terrestrial Relations Observatory  Edit Entry  Download Preprint  Delete Entry 

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