A confined dynamo: Magnetic activity of the K-dwarf component in the pre-cataclysmic binary system V471 Tauri

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Table 4.

Spectral fits to the quiescent parts of the two XMM-Newton observations from 2004 and 2019 and the Swift data from 2015.

Data	kT₁	EM₁	kT₂	EM₂	Z	T_av	EM_tot	(d.o.f.)
	[eV]	[10⁵² cm⁻³]	[eV]	[10⁵² cm⁻³]	[Z_⊙]	[MK]	[10⁵² cm⁻³]
XMM 2004						8.86	9.9	1.503 (58)
XMM 2019						9.48	8.6	1.043 (58)
Swift 2015			–	–		–	–	0.999 (132) ^(a)

Notes. Errors refer to the 90% confidence intervals returned by Xspec. The last column gives the goodness of fit and the degrees of freedom.

^(a)

Pearson due to use of Cash statistics for fitting.

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