Conveners
Session 7
- Vania Da Deppo (Istituto Nazionale di Astrofisica (INAF))
The Metis coronagraph observes the solar corona at spatial resolution that can rival or surpass other instruments, either ground-based or space-borne. In addition, the instrument design allows observations at high temporal cadences that were difficult to achieve before in the extended corona.
During the perihelia of the Solar Orbiter nominal mission, these capabilities have been exploited to...
High resolution and high cadence coronagraphic images from Metis are helping addressing outstanding scientific questions on the structure an propagation of CMEs.
At the same time, these observations are opening up new opportunities to observationally constrain existing models and to develop a new generation of advanced, complex models that combine lower and outer coronal domains.
In this...
On November 09-11 2021 the Metis coronagraph on-board ESA Solar Orbiter mission observed a sequence of interesting transient events in the solar corona. First, starting from 18:00 UT on November 09 the instrument observed over the West limb the reconfiguration phases immediately after a major Coronal Mass Ejection (CME), also observed by the LASCO coronagraphs on-board SOHO. The VL images show...
One of the most important objectives of solar physics is the physical understanding of the solar atmospheric structure (still a matter of debate in the literature), including a full description in terms of the density (n) and temperature (T) distributions.
In our analysis we aim to constrain the n and T distributions through observations in the centimetric radio domain. We employ single-dish...
We present the comparison of the coronal visible light (VL) images obtained with the currently operating coronagraphs, such as Metis/Solar Orbiter, LASCO-C2/SOHO and COR2/STEREO-A. We compared the total (B) and polarized (pB) brightness data that was collected during various conjunctions and oppositions of these instruments in 2020-2023. Analyzing the latitudinal profiles of pB and B...
Throughout the initial three years of the operative mission, METIS coronagraph carried out numerous scientific observations, including some focused on comets. Among the observed cometary targets, there are periodic comets, like 2P/Encke, sunskirters, such as 96P/Machholz, some sungrazers, and even a long-period comet, the C/2021 A1 (Leonard), having an orbital period of approximately 80,000...
Comet C/2011 N3 (SOHO) and Comet C/2011 W3 (Lovejoy) are, up to the present, the only two comets observed to have transited inside the inner solar corona at distances below two solar radii. The observations captured by the Solar Dynamics Observatory in EUV with the Atmospheric Imaging Assembly have revealed the comet tails structured as a sequence of striations, apparently distributed...
