When do solar erupting hot magnetic flux ropes form?

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Table 2.

Cooling time scales of hot flux rope plasmas.

Density	Temperature	τ_c^(a)	τ_r^(b)
(10⁹ cm⁻³)	(10⁶ K)	(min)	(min)
12.0	8	16	33
1.1	8	2	348
12.0	2.5	–	8
1.1	2.5	–	84

Notes. The characteristic flux rope length scale is 30 Mm.

^(a)

τ_c denotes the time scale of cooling due to thermal conduction.

^(b)

τ_r denotes the time scale of radiative losses.

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