000006977 001__ 6977
000006977 005__ 20240418151540.0
000006977 0247_ $$2DOI$$a10.1051/0004-6361/202348776
000006977 037__ $$aSCART-2024-0145
000006977 100__ $$aMandal, Sudip
000006977 245__ $$aInvestigating coronal loop morphology and dynamics from two vantage points
000006977 260__ $$c2024
000006977 520__ $$aCoronal loops are the fundamental building blocks of the solar corona. Therefore, comprehending their properties is essential in unraveling the dynamics of the upper solar atmosphere. In this study, we conduct a comparative analysis of the morphology and dynamics of a coronal loop observed from two different spacecraft: the High Resolution Imager (HRIEUV) of the Extreme Ultraviolet Imager on board the Solar Orbiter, and the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory. These spacecraft were separated by 43◦ during this observation. The main findings of this study are that (1) the observed loop exhibits similar widths in both the HRIEUV and AIA data, suggesting that the cross-sectional shape of the loop is circular; (2) the loop maintains a uniform width along its entire length, supporting the notion that coronal loops do not exhibit expansion; and (3) notably, the loop undergoes unconventional dynamics, including thread separation and abrupt downward movement. Intriguingly, these dynamic features also appear similar in data from both spacecraft. Although based on observation of a single loop, these results raise questions about the validity of the coronal-veil hypothesis and underscore the intricate and diverse nature of the complexity within coronal loops.
000006977 594__ $$aSTCE
000006977 6531_ $$aSolar Orbiter
000006977 6531_ $$aEUI
000006977 6531_ $$acoronal loops
000006977 700__ $$aPeter, Hardi 
000006977 700__ $$aKlimchuk, James
000006977 700__ $$aSolanki, Sami K.
000006977 700__ $$aChitta, Lakshmi Pradeep
000006977 700__ $$aAznar Cuadrado, Regina 
000006977 700__ $$aSchühle, Udo
000006977 700__ $$aTeriaca, Luca
000006977 700__ $$aBerghmans, David
000006977 700__ $$aVerbeeck, Cis
000006977 700__ $$aAuchère, Frederic
000006977 700__ $$aStegen, Koen
000006977 773__ $$cid.L9$$pAstronomy & Astrophysics$$v682$$y2024
000006977 8560_ $$fdavid.berghmans@ksb-orb.be
000006977 85642 $$ahttps://arxiv.org/pdf/2401.07349.pdf
000006977 85642 $$ahttps://ui.adsabs.harvard.edu/abs/2024A%26A...682L...9M/abstract
000006977 85642 $$ahttps://www.aanda.org/articles/aa/pdf/2024/02/aa48776-23.pdf
000006977 905__ $$apublished in
000006977 980__ $$aREFERD