Gaia Data Release 1
Open Access

Fig. C.9


Probability density plots (see footnote 12) of normalised position differences for ICRF2 sources. The solid blue curve is for 262 defining sources, the dashed grey for 1929 non-defining sources. Δα ∗ /σΔα and Δδ/σΔδ are considered together, as their distributions are not markedly different.

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