TY - JOUR
T1 - ALMA and IRIS observations of the solar chromosphere. I. an on-disk type II spicule
AU - Chintzoglou, Georgios
AU - De Pontieu, Bart
AU - Martínez-Sykora, Juan
AU - Hansteen, Viggo
AU - de la Cruz Rodríguez, Jaime
AU - Szydlarski, Mikolaj
AU - Jafarzadeh, Shahin
AU - Wedemeyer, Sven
AU - Bastian, Timothy S.
AU - Sainz Dalda, Alberto
PY - 2021/1/10
Y1 - 2021/1/10
N2 - We present observations of the solar chromosphere obtained simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph. 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 nonequilibrium ionization effects, we report the detection of an on-disk chromospheric spicule with ALMA and confirm its multithermal nature.
AB - We present observations of the solar chromosphere obtained simultaneously with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph. 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 nonequilibrium ionization effects, we report the detection of an on-disk chromospheric spicule with ALMA and confirm its multithermal nature.
U2 - 10.3847/1538-4357/abc9b1
DO - 10.3847/1538-4357/abc9b1
M3 - Article
SN - 0004-637X
VL - 906
JO - The Astrophysical Journal
JF - The Astrophysical Journal
M1 - 82
ER -