General description
SOOP designed to address polar magnetic field objectives that don't necessarily rely on the the highest resolution and cadence PHI data, nor all five physical parameters that PHI can return. The rest of the remote sensing observations provide supporting data.
'Ephemeral' flavour:
The emergence, diffusion and decay of ephemeral regions near the poles and below high- latitude coronal holes should be studied for the aspect of how they feed the magnetic network (see e.g. Simon et al. 2001, ApJ 561, 49 427; Gosic et al. 2014, ApJ 797, ). In particular, the latitudinal dependence of this decay process would be interesting to study.
Default SOOP duration: Several days
Pointing requirements: Poles
Triggers: disabled
Observations requirement (baseline)
| Instrument | Mode | Comment |
|---|---|---|
| PHI | PHI_magnetograph_HRT_2 (HRT), 2-5 mins cadence, no binning | Full FoV, 2-5 minute cadence, 3 quantities, no binning |
EUI | Keep defaults for now, could potentially match PHI cadence | |
| SPICE | FOV Matching PHI | |
| SoloHI | Normal observing programme | |
| Metis | Off pointing so door closed | |
| STIX | Normal observations |
Science objectives
| SAP objective | Target | Duration | Opportunity (e.g., orbital requirements, solar cycle phase, quadrature ...) | Operational constraints | Additional comments |
|---|---|---|---|---|---|
| 1.2.2.1 Determine where energy is deposited in the solar wind | Off limb corona | measure line intensities, estimate electron density | |||
| 4.1 How is magnetic flux transported to and re-processed at high solar latitudes? | High Latitudes | ||||
| 4.2 What are the properties of the magnetic field at high solar latitudes? | Solar Poles | repeated high cadence bursts of several days duration | high latitudes, median to high resolutions | off pointing so no Metis | |
4.4 Are there separate dynamo processes acting in the Sun? (4.3.1) | Ephemeral Regions, (quiet Sun below the poles, above polar coronal holes). | Several Days | High latitude, solar minimum | feature tracking | |
| 4.5 How are coronal and heliospheric phenomena related to the solar dynamo? |
Instances run / planned
LTP6 (run):
2022-03-06 and 03-30 (SOOP coordinators: A. Zhukov)
LTP9 (run)
2022-10-16 (SOOP coordinators: A. Fludra)
LTP11 (planned):
2022-03-29 (SOOP coordinators: A. Zhukov)
2022-04-24-25 (SOOP coordinators: J. Sinan)
Science outcomes
Ref of paper using the SOOP data
Further information
From SOL-PHI-MPS-MN1500-TN-2
This SOOP is inspired by science goal 1 of 2.3 in the MPS document and is also consistent with the second part of 2.1 (apart from the number of physical quantities)
Original SOOP proposers
A. Fludra
1 Comment
Anik De Groof
SOOP ID in SOOP Kitchen = RS9