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Table A.2.

Definition of the wavelength regions (in Å) where the extrema are expected to be found.

Indicators
Ca II H&K 3504–3687 3830–3990
Si IIλ4131 3830–3990 4030–4150
Mg II 4030–4150 4450–4650
Fe λ4800 4450–4650 5050–5285
S II W 5050–5285 5500–5681
Si IIλ5972 5550–5681 5850–6015
Si IIλ6355 5850–6015 6250–6365
O Iλ7773 7100–7270 7720–8000
Ca II IR 7720–8000 8300–8800

Notes. The b and r exponents respectively represent the left (blue) and right (red) peak.

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