The Gaia-ESO Survey: Tracing interstellar extinction

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Table 2

Derived slopes of the colour excesses.

Colour	This work	Yuan et al.	Fitzpatrick	Cardelli

u − g ^a	0.94 ± 0.03	1.08 ± 0.010	0.945	0.984
r − i ^a	0.64 ± 0.02	0.60 ± 0.010	0.582	0.557
i − z ^a	0.48 ± 0.01	0.43 ± 0.004	0.426	0.496
J −K^a	0.41 ± 0.01	0.414 ± 0.01	0.411	0.466
J − H ^b	0.65 ± 0.02	0.63 ± 0.01	–	–

Notes.

^(a)

Derived by fitting versus E(g − r) diagram.

^(b)

Derived by fitting versus E(J − K) diagram.

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