Feb 11 – 13, 2026
Circolo dei lettori
Europe/Rome timezone

Detection of downflows with Metis and ASPIICS observations

Feb 13, 2026, 10:20 AM
20m
Sala Gioco (Circolo dei lettori)

Sala Gioco

Circolo dei lettori

Via Bogino, 9 10123 Torino

Speaker

Lucia Abbo (Istituto Nazionale di Astrofisica (INAF))

Description

We have analyzed high temporal frequency visible light observations acquired by Metis coronagraph on Solar Orbiter during the perihelia on October 2022, April 2023 and September 2024.
In particular, we focused on series of total and polarized Brightness observations lasting for 40 min up to few hours, acquired with a cadence of 20 s and 60 s. The field of view of the observations ranges from 1.7 to 3.5 solar radii.
We have found in these data sets several examples of inflows detected as collapsing loops and density inhomogeneities. We have noticed that this kind of features are observed mainly along the streamer axis and they are not observed in pseudo-streamers.
Similar features have been detected by ASPIICS on PROBA3 from the limb to few solar radia, allowing the study of the dynamics of the corona with a continuous coverage of the field of view.

Author

Lucia Abbo (Istituto Nazionale di Astrofisica (INAF))

Co-authors

Andrei Zhukov Dr Daniele Spadaro (Istituto Nazionale di Astrofisica (INAF)) Laurent Dolla (Royal Observatory of Belgium) Prof. Marco Romoli (Università di Firenze) Marilena Mierla Roberto Susino (Istituto Nazionale di Astrofisica (INAF)) Dr Silvano Fineschi (Istituto Nazionale di Astrofisica (INAF)) Vincenzo Andretta (Istituto Nazionale di Astrofisica (INAF))

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