Orphan penumbrae: Submerging horizontal fields | Astronomy & Astrophysics (A&A)

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Table 1

Apparent horizontal velocities.

Region	[km s^-1]		σ_{\| U_LCT \|} [km s^-1]
	G-band	Ca ii H	G-band	Ca ii H

Regular penumbra	0.41	0.59	0.25	0.68
inflow	0.42	0.32	0.25	0.51
outflow	0.38	0.83	0.24	0.73
Orphan penumbra	0.45	0.86	0.28	0.55
inflow	0.29	0.18	0.15	0.10
outflow	0.53	0.89	0.29	0.55
Moat region (RP)	0.57	0.78	0.31	0.44
Moat region (OP)	0.54	0.69	0.23	0.44
Quiet Sun	0.57	0.86	0.31	0.46

Notes. Mean values and standard deviations (σ_{| U_LCT |}) of apparent horizontal velocities in various regions of the solar atmosphere as determined from the G-band and Ca ii H images. The abbreviations RP and OP stand for regular and orphan penumbra, respectively.

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