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SUMMARY:Sausage wave modes in small magnetic pores observed with Solar Orb
 iter/PHI
DTSTART;VALUE=DATE-TIME:20230509T100000Z
DTEND;VALUE=DATE-TIME:20230509T101500Z
DTSTAMP;VALUE=DATE-TIME:20240704T115653Z
UID:indico-contribution-305@meetings.aip.de
DESCRIPTION:Speakers: Shahin Jafarzadeh (Max Planck Institute for Solar Sy
 stem Research\, Germany))\nWe have exploited seeing-free and high-quality 
 observations of several small magnetic pores from the High Resolution Tele
 scope (HRT) of the Polarimetric and Helioseismic Imager (PHI) on board the
  Solar Orbiter spacecraft\, during its first close perihelion in March 202
 2 (at a distance of 0.5 au from the Sun). Only such small magnetic pores\,
  captured at stable observing conditions\, could manifest (large) area flu
 ctuations\, on the order of 30% variations\, that is an indication of (non
 -linear) fast sausage (surface) modes. Furthermore\, cross correlations be
 tween perturbations in intensity\, area\, line-of-sight velocity\, and mag
 netic fields have provided us with additional wave signatures\, that toget
 her with applications of modern analysis techniques\, such as the Spectral
  Proper Orthogonal Decomposition (SPOD)\, we have been able to characteris
 e the underlying MHD wave modes in more details.\n\nhttps://meetings.aip.d
 e/event/24/contributions/305/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/24/contributions/305/
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