General description
Decay of Active regions: see slides in 4-Bellot-Rubio-SAP4_magnetoconvection5_final.pptx:
Decay process of ARs is not well known:
- Slow, may last a few weeks
- ARs approach limb and suffer from projection effects
- Emerging flux starts to reconnect with preexisting flux very soon
- Appearance of filaments, flux rope eruptions and CMEs in late phases of decay
- Sunspot fragmentation by light bridges?
- Flux erosion by convective flows?
- Role of moving magnetic features?
- How is the AR flux dispersed?
- What is the fate of the flux?
Default SOOP duration: 15 days
Pointing requirements: target pointing and tracking
Triggers: disabled
Observations requirement (baseline)
| Instrument | Mode | Comment |
|---|---|---|
| EUI | EUV & LYA Coronal hole modes (C) 600 s cadence | EUV + Lyman alpha, FOV and resolution matching PHI |
SPICE | SPICE Dynamics (bracketed by SPICE Composition Mapping) | 2" slit, 128 slit positions, scan duration 11 minutes |
| PHI | PHI_magnetograph_FDT/HRT_2 HRT | Full FOV, 10 min cadence, 5 quantities, 2x2 binning |
| Metis | METIS standard modes: MAGTOP or GLOBAL | Metis can potentially provide context data before and after the 15 day SOOP (offpointing during the 15 days) |
Science objectives
| SAP objective | Target | Duration | Opportunity (e.g., orbital requirements, solar cycle phase, quadrature ...) | Operational constraints | Additional comments |
|---|---|---|---|---|---|
| 5.5.2.4 | Isolated AR , complex AR on E limb | 15 days | Perihelion: to ensure near-co-rotation, Stereoscopy, which constrains Earth-Sun-SC angle | Duration 15 days | Potentially coordinated with ground based DKIST/EST/GREGOR/NST for short-term studies |
1.1.3.3 What is the distribution of the open magnetic flux? | coronal holes, QS, AR | ||||
| 1.2.1.3 Contribution of flare-like events on all scales | increase cadence; only partially | ||||
| 1.2.1.7 Detect and characterise waves in closed and open structures | plumes | high latitude pointing | |||
| 1.2.2.5 Magnetic reconnection in the chromosphere, the transition region and the corona | increase cadence | ||||
| (2.1.1.1 CME initiation) probably better FDT | |||||
| 4.1.1.1 Track granules and magnetic features to follow their motion and interactions | increase cadence | ||||
| 4.1.3.2 Follow individual magnetic features flux from lower to high latitudes | |||||
| 4.1.3.4 How supergranular flows facilitate/impede transport of magnetic features? | increase cadence |
Instances run / planned
LTP6:
2022-03-31 to 04-04 (SOOP coordinators: L. Bellot )
LTP9:
2022-10-16 to 27, 2022-10-29, 2022-11-01 to 06 (SOOP coordinators: S. Parenti, G. Valori)
Science outcomes
Ref of paper using the SOOP data
Original SOOP proposers
Luis Bellot-Rubio, Andrzej Fludra, S. Parenti
1 Comment
Anik De Groof
SOOP ID in SOOP Kitchen = RS0