Mass and energy supply of a cool coronal loop near its apex

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Table A.1

Time line for the bright loop. See Sect. 3.

Spectral signatures in Si IV		Features in 1400 Å SJI of IRIS		Coronal features in AIA 171 Å/193 Å		Coronal features in AIA hot 94 Å^(a)
32:46 42 s	first enhancement signature in the blue wing, weak self-absorption in 1394 Å	32:51 47 s	faint loop that connects the main polarities of the AR ( ~20 Mm long)
33:02 58 s	strong blue wing enhancement	33:07 63 s	small bright patch in the middle of the loop (around the slit)	33:12 68 s	right footpoint is bright in 171 Å
33:22 78 s	maximum brightening of phase 1	33:38 94 s	the loop is bright throughout	33:44 100 s	right footpoint is much brighter in 171 Å and appears in 193 Å
33:43 99 s	short decrease in blue wing enhancement
33:53 109 s	self-absorption is strong in both lines	33:53 109 s	the loop is visible from end to end, but fainter, still with a bright patch near the slit	34:00 116s	brightening in 171 and 193 expands up the loop	33:51 107 s	the right footpoint of the loop shows weak brightening
34:09 125 s	a distinct high-speed blue component appears	34:09 125 s	the entire loop is bright again			34:15 131 s	the brightening expands up the loop
34:25 141 s	blue wing is enhancement very strong	34:25 141 s	the loop is bright throughout, but very bright in the middle near the slit
34:50 166 s	self-absorption is very weak in 1403 Å	34:40 156 s	the loop is bright throughout, but no special brightening in the middle	34:36 152 s	distinct bright structure in the middle (around the slit) in 171 and 193
35:01 177 s	no further significant spectral signatures	34:56 172 s	the loop is only dim, only bright near the slit in the middle part	34:48 164 s	the brightening in the middle of the loop vanishes in 171 and 193
35:11 187 s	self-absorption vanishes	35:58 234 s	the loop disappears	35:32 208 s	the loop is invisible	35:15 191 s	the loop disappears

Notes. ^(a) The hot component of AIA 94 Å is contributed by Fe xviii 93.92 Å forms at 7.1 MK.

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