Measurements with STEREO/COR1 data of drag forces acting on small-scale blobs falling in the intermediate corona

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Table 1

Electron density of the three blobs.

Blob 1
STEREO	n_e,blob Eq. (11)	n_e,blob Eq. (12)	log (tB_Hα)
	10⁷ cm^-3	10⁷ cm^-3	erg cm^-2 s^-1 sr^-1

Ahead	8.64 ± 0.92	148.4 ± 7.9	3.159
Behind	7.88 ± 0.85	128.1 ± 7.1	3.141

Blob 2
STEREO	n_e,blob Eq. (11)	n_e,blob Eq. (12)	log (tB_Hα)
	10⁷ cm^-3	10⁷ cm^-3	erg cm^-2 s^-1 sr^-1

Ahead	5.42 ± 0.54	84.5 ± 4.1	2.419
Behind	4.72 ± 0.81	55.6 ± 6.6	2.362

Blob 3
STEREO	n_e,blob Eq. (11)	n_e,blob Eq. (12)	log (tB_Hα)
	10⁷ cm^-3	10⁷ cm^-3	ergs cm^-2 s^-1 sr^-1

Ahead	5.53 ± 0.73	78.2 ± 5.0	2.402
Behind	9.2 ± 1.6	216.3 ± 22.3	2.685

Notes. The values in Col. 1 (by Eq. (12)) do not include the Hα contribution; the values in Col. 2 (by Eq. (11)) include this contribution. The last column shows an estimate of the Hα total brightness.

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