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Photosphere

Structure Size (Mm) Lifetime $T$(K) $B$ (kG) Misc. Refs
Large Scale Unipolar $>$ 100 year $10^{-3}$(avg) coronal holes above some [Pr82,Pr82,Pr82,Pr82]
Supergranules 20 - 54 1 - 2 days $v_{convec} \sim$ .2 km/s [Pr82,Pr82,Pr82]
Granules .7 - 1.5 10 min [Pr82,Pr82]
Pores .7 - 1.8 hrs - day 2.2 $\pm$ .2 precede spots; no penumbra [Zw87,Pr82,Zw87,Pr82]
Sunpots(pair) sep'n:150 days-mos [Pr82,Pr82]
- umbra(pen) 2-11.5(4-28) 3700 2.9 $\pm$ .4 $I_{vis} = 10 \% I_{photosph}$ [Zw87,Pr82,Zw87,Pr82]
- umbral dots .15 - .2 1500 s 5700 $I_{vis} = I_{photosph}$ [Pr82,Pr82,Pr82,Pr82]
- penumbral filaments $L=6;W=.35$ .5 - 6 hr 5700 $v_{\rm {Ev}}=$7 km/s; $v_{\rm {pen.wv.}}$ = 15 km/s [Pr82,Pr82,Pr82,Pr82]
Plage avg = .1 H$\alpha$ & Ca K [Ph92]
Micropores/ umbra:$\sim$.5 hr 1.5 - 2 5% area cov.; plages' field source [Zw87,Pr82,Zw87,Pr82]
Magnetic knots
Network/Faculae .35 - .6 1.2 - 2 ``Net'' on disk, ``Fac'' @ limb [To97]
Filigree/Crinkle $L=1.8;W=.2$ clustered faculae, 'tween granules [Pr82], p. 21
Grains 1.5 1 - 4 min 4300 - 5000 most EUV emiss.; 10% area cov. [Pr82], p. 19
Inner Network Fields 30 min $10^{17}$Mx found within suprgrans. [Pr82], p. 24
Magnetic knots/ .1 - .3 1 'tween granules [Pr82], p. 22
Network Fields umbra:$\sim.01$ $\sim$1.5 [Zw87,Zw87]
Flux Tube/``Fiber''/


next up previous
Next: Chromosphere Up: Morphology Previous: Morphology
Brian Welsch 2001-03-01