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VERSION:2.0
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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260712T144413Z
UID:https://www.mps.mpg.de/events/45861/3974399
DTSTART:20260604T090000Z
DTEND:20260604T100000Z
CLASS:PUBLIC
CREATED:20260531T161329Z
DESCRIPTION: Small-scale extreme-ultraviolet (EUV) brightenings are ubiquit
 ous in the solar corona and may represent the low-energy counterparts of l
 arger solar flares\, with important implications for coronal heating. A ke
 y observational signature of solar and stellar flares is the presence of q
 uasi-periodic pulsations (QPPs)\, which are thought to reflect fundamental
  processes of impulsive energy release. QPPs can therefore provide a key d
 iagnostic for determining whether EUV brightenings share the same underlyi
 ng mechanisms as larger-scale flares or instead represent a fundamentally 
 distinct regime. Using the high spatial and temporal resolution of the Sol
 ar Orbiter/Extreme Ultraviolet Imager\, we present the first clear evidenc
 e that QPPs are present in EUV brightenings. We characterise their propert
 ies over a wide range of spatial and temporal scales and show that their p
 eriods extend from a few seconds to several minutes\, comparable to those 
 observed in larger flares. We further demonstrate that the relationship be
 tween QPP damping time and period follows a common power-law scaling for b
 oth EUV brightenings and EUV solar flares. When combined with previously r
 eported X-ray QPPs from solar and stellar flares\, all events align with a
  single unified scaling trend spanning many orders of magnitude in scale. 
 The universality of this scaling strongly suggests that QPPs in small-scal
 e brightenings\, solar flares\, and stellar flares are governed by a broad
 ly common underlying physical mechanism.\nSpeaker: Daye Lim 
LAST-MODIFIED:20260531T161934Z
LOCATION:https://uio.zoom.us/j/63138938090
ORGANIZER;CN=Valeriia Liakh:mailto:
SUMMARY:ESPOS: ESPOS: From EUV Brightenings to Stellar Flares: Universal Sc
 aling of Quasi-Periodic Pulsations (Daye Lim)
URL;VALUE=URI:https://www.mps.mpg.de/events/45861/3974399
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