Delayed, Line-dependent Reorganization of Pore Oscillations Following a Compact C8.2 Flare Observed by S unrise iii /SUSI

@article{jafarzadeh2026delayed,
  title = {{Delayed, Line-dependent Reorganization of Pore Oscillations Following a Compact C8.2 Flare Observed by S unrise iii /SUSI}},
  author = {Shahin Jafarzadeh and David B. Jess and Marco Stangalini and Lyndsay Fletcher and Ryan O. Milligan and Paulo J. A. Simões and Peter H. Keys and Sami K. Solanki and H. N. Smitha and Andreas Lagg and Achim Gandorfer and Alex Feller and Francisco A. Iglesias and Tino L. Riethmüller and Bianca Grauf and Johannes Hoelken and Jose Carlos del Toro Iniesta and Yukio Katsukawa and Pietro Bernasconi and Thomas Berkefeld and Alberto Álvarez-Herrero and Masahito Kubo and David Orozco Suárez and Michael Carpenter and Alexander Bell and Valentín Martínez Pillet and Francisco Javier Bailén and Julian Blanco Rodríguez and Juan Sebastián Castellanos Durán and Edvarda Harnes and Ryohtaroh T. Ishikawa and Yusuke Kawabata and Takuma Matsumoto and Takayoshi Oba and Azaymi L. Siu-Tapia and Hanna Strecker and Dušan Vukadinović},
  journal = {The Astrophysical Journal Letters},
  year = {2026},
  month = oct,
  doi = {10.3847/2041-8213/aeaee8},
  url = {https://iopscience.iop.org/article/10.3847/2041-8213/aeaee8},
  note = {CC BY 4.0},
}

TY  - JOUR
TI  - Delayed, Line-dependent Reorganization of Pore Oscillations Following a Compact C8.2 Flare Observed by S unrise iii /SUSI
AU  - Shahin Jafarzadeh
AU  - David B. Jess
AU  - Marco Stangalini
AU  - Lyndsay Fletcher
AU  - Ryan O. Milligan
AU  - Paulo J. A. Simões
AU  - Peter H. Keys
AU  - Sami K. Solanki
AU  - H. N. Smitha
AU  - Andreas Lagg
AU  - Achim Gandorfer
AU  - Alex Feller
AU  - Francisco A. Iglesias
AU  - Tino L. Riethmüller
AU  - Bianca Grauf
AU  - Johannes Hoelken
AU  - Jose Carlos del Toro Iniesta
AU  - Yukio Katsukawa
AU  - Pietro Bernasconi
AU  - Thomas Berkefeld
AU  - Alberto Álvarez-Herrero
AU  - Masahito Kubo
AU  - David Orozco Suárez
AU  - Michael Carpenter
AU  - Alexander Bell
AU  - Valentín Martínez Pillet
AU  - Francisco Javier Bailén
AU  - Julian Blanco Rodríguez
AU  - Juan Sebastián Castellanos Durán
AU  - Edvarda Harnes
AU  - Ryohtaroh T. Ishikawa
AU  - Yusuke Kawabata
AU  - Takuma Matsumoto
AU  - Takayoshi Oba
AU  - Azaymi L. Siu-Tapia
AU  - Hanna Strecker
AU  - Dušan Vukadinović
PY  - 2026
DA  - 2026/10/15
JO  - The Astrophysical Journal Letters
DO  - 10.3847/2041-8213/aeaee8
UR  - https://iopscience.iop.org/article/10.3847/2041-8213/aeaee8
AB  - Magnetic oscillations permeating the solar atmosphere can be altered by flares. This could be due to changes in the atmospheric magnetic waveguide, the thermodynamic stratification, or both. To investigate this, we examine oscillations in a magnetic pore crossed in part by the ribbon of a C8.2 flare, using observations from the S unrise Ultraviolet Spectropolarimeter and Imager (SUSI) aboard S unrise iii . We track the core intensities of eight spectral lines between 327–329 nm and show that oscillatory power in the 4.2–7.0 mHz range, measured around 30 minutes after the flare peak, exceeds the preevent value in all eight lines by factors of 1.60–8.71. Conversely, in the 7.0–11.5 mHz band, the postevent intensity power is lower—approximately 0.13–0.41 of the original power in seven of the observed lines. Line-center velocity measurements support the lower-frequency enhancement. This delayed, line-dependent shift toward the lower-frequency band is consistent with flare-induced changes in wave transmission, reflection, or resonant response, although thermodynamic and magnetic effects cannot yet be separated.
SN  - 2041-8205
SN  - 2041-8213
ER  -