Characteristics and energy flux distributions of decayless transverse oscillations depending on coronal regions

• DOI: 10.1051/0004-6361/202450433
• Publication Date: 2024-06-18T18:53:18Z
• Authors: Daye Lim; Tom Van Doorsselaere; David Berghmans; Elena Petrova
• Keywords: Energy flux

Context. It has been proposed that the slope ( δ ) of power-law distribution between energy flux and oscillation frequency could determine whether high-frequency transverse oscillations make a dominant contribution to heating < 1). A meta-analysis decayless revealed potentially play key role in solar corona. Aims. We aim investigate or not (and, if so, how) distributions contained oscillations, their slopes, depend on coronal region which occurs. Methods. analysed from 41 quiet Sun (QS) loops 22 active (AR) observed by Solar Orbiter/Extreme Ultraviolet Imager (EUI) HRI EUV . estimated using parameters loop properties, such as periods, displacement amplitudes, lengths, minor radii loops. Results. find about 71% QS 86% AR show amplitude does change depending different regions, but difference period is more pronounced. Although power law = −1.79) steeper than −1.59) QS, both them are significantly less critical 1. Conclusions. Our statistical study demonstrates can heat QS. For ARs, total insufficient unless yet-unobserved with frequencies up 0.17 Hz present. Future EUI campaigns will be planned confirm corresponding exists.