Temporal downflows in a penumbra | Astronomy & Astrophysics (A&A)

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Table 2

Plasma properties^a in the downflow patches and nearby upflow regions.

Event	N^D	N^U							γ^D	γ^U	γ^D−U	B^D	B^U	B^D−U
			[counts]			[km s^-1]			[deg]			[G]

1	2	21	20 200	23 450	–3250	0.57	–1.84	2.41	145	135	10	2000	1800	200
2	3	56	24 000	25 750	–1750	0.66	–1.58	2.24	140	130	10	1550	1280	270
3	7	72	23 900	27 000	–3100	0.61	–1.51	2.12	145	130	15	2050	1380	670
4	25	142	24 250	30 050	–5800	0.72	–1.91	2.63	135	120	15	1630	1180	450
5	1	32	27 500	28 700	–1200	0.61	–1.69	2.30	125	120	5	990	1020	-30
6	13	41	29 000	28 300	700	0.98	–1.65	2.63	125	120	5	1480	1080	400
7	2	30	27 200	28 800	–1600	0.72	–1.68	2.40	125	120	5	1150	1000	150
8	6	5	27 400	28 700	–1300	0.90	–1.61	2.51	130	125	5	1210	1160	50
					-2175			2.405			9.4			265

Notes.

^(a)

For individual events, we list absolute values of continuum intensity, LOS velocity, magnetic field inclination, and magnetic field strength in the downflow patch (upper index D) and in the nearby upflow region (upper index U) and also the difference in these values (upper index D–U). The values of plasma parameters are averaged in the range of optical depths between log (τ) = −0.2 and −0.4. The last line shows the average differences between the downflow and upflow regions. The second and third columns show the number of pixels used to derive the characteristic values in the downflow and upflow regions, respectively.

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