Electron cooling and the connection between expansion and flux-density evolution in radio supernovae

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Table 1

Model parameters for several RSNe.

Supernova	Observed			Assumed		Derived
	m	α	β	s	p	B₀ (G)

SN 1979C	0.91	0.74	−0.78	2.0	2.5	~0
				2.0	2.3	20–30

SN 1986J	0.69	0.7	−1.18	1.7	2.4	~0
				2.0	2.0	30–50

SN 1993J^a	0.87	0.98	−0.78	2.0	2.5	60–80

SN 2008iz	0.89^b	1.08	−1.43	2	~3	~0
				2.4	2.6	~100

Notes. Observed refers to those obtained from the fitted expansion and radio light curves; Assumed and Derived refer to those obtained from comparison with the results shown in Figs. 1–4. Cases with two possible solutions are given in two rows, one row for each solution.

^(a)

Fit to data between days 300 and 1000 after explosion (see text).

^(b)

Derived from VLBI observations (Brunthaler et al., in prep.)

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