Cosmic Dark Radiation and Neutrinos

Table 6

1𝜎 marginalized errors and relative errors for all parameters considering the two different fiducial cosmological models described in the text: ΛCDM model with either massless or massive neutrinos.

	Euclid + Planck prior
	ΛCDM + 𝑁eff		ΛCDM + 𝑁eff + ∑𝑚𝜈
	1𝜎	rel. err.	1𝜎	rel. err.
𝜔𝑏	0.00031	1.4%	0.00031	1.4%
𝜔cdm	0.0021	1.7%	0.0022	1.8%
ℎ	0.007	1.0%	0.007	1.1%
ln(10^10𝐴𝑠)	0.064	2.1%	0.072	2.3%
𝑛𝑠	0.009	0.9%	0.009	0.9%
𝑁eff	0.23	7.5%	0.29	9.7%
∑𝑚𝜈 [eV]	—	—	0.10	51.4%