Table 2
Continuum intensity contrast dependence on magnetogram signal near disc centre obtained in the present and from earlier studies.
| Reference | Instrument | Targetb | Resolution [Arcsec] | Wavelength [Å] | Results |
|
|
|||||
| Present | SDO/HMI | μ >0.94c | 1 | 6173 | Negative near ⟨Bl⟩/μ = 0G. Peak at ⟨Bl⟩/μ ~ 200G. |
| 1, 2, 3, 4 | SVST | AR | ≳0.3 | Variousd | Negative near ⟨Bl⟩ = 0G. Monotonic decline with ⟨Bl⟩. |
| 3 | SVST | QS | ≳0.3 | 6302 | Negative near ⟨Bl⟩ = 0G. Peak at ⟨Bl⟩ ~ 400G. |
| SFO/SHGa | QS | ≳1 | 6302 | Negative near ⟨Bl⟩ = 0G. Peak at 100G ≲ ⟨Bl⟩ ≲ 200G. | |
| AR | Negative near ⟨Bl⟩ = 0G. Monotonic decline with ⟨Bl⟩. | ||||
| 5 | SoHO/MDI | μ >0.92c | 4 | 6768 | Positive near ⟨Bl⟩/μ = 0G. Peak at ⟨Bl⟩/μ ~ 100G. |
| 6 | SST | AR | 0.15 | 6302 | Negative near ⟨Bl⟩ = 0G. Peak at ⟨Bl⟩ ~ 650G. |
| 7 | Hinode/SOT | QS | 0.3 | 6302 | Negative near ⟨Bl⟩ = 0G. Peak at ⟨Bl⟩ ~ 700G. |
| AR | Negative near ⟨Bl⟩ = 0G. Peak at ⟨Bl⟩ ~ 700G. | ||||
| 8 | SST | QS | 0.15 | 6302 | Negative near ⟨Bl⟩ = 0G. Saturate at ⟨Bl⟩ ~ 800G. |
| Hinode/SOT | QS | 0.3 | 6302 | Negative near ⟨Bl⟩ = 0G. Peak at ⟨Bl⟩ ~ 500G. | |
Notes.
References. (1) Title et al. (1992); (2) Topka et al. (1992); (3) Lawrence et al. (1993); (4) Topka et al. (1997); (5) Ortiz et al. (2002); (6) Narayan & Scharmer (2010); (7) Kobel et al. (2011); (8) Schnerr & Spruit (2011).
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