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Table 1

Parametric description of CTI-induced bias charge traps of different species cause in the measured sizes d and ellipticities e1 of faint galaxies (black lines in Fig. 4).

C D a D p D w G a G p G w

MSMI-measured galaxies: degraded images
Δd/dtrue 0.04350 ± 0.00034 −0.0235 ± 0.0005 1.92 ± 0.02 0.39 ± 0.08 0.1236 ± 0.0038 0.713 ± 0.011 0.449 ± 0.017
Δe1 0.05356 ± 0.00022 −0.0360 ± 0.0004 1.99 ± 0.02 0.38 ± 0.04 0.1058 ± 0.0019 0.666 ± 0.004 0.434 ± 0.008
MSMI-measured galaxies: CTI-corrected images
Δd/dtrue −0.00249 ± 0.00030 0.0005 ± 0.0005 1.83 ± 1.27 0.82 ± 3.91 0.0013 ± 0.0009 0.675 ± 0.246 0.432 ± 0.372
Δe1 −0.00107 ± 0.00012 0.0002 ± 0.0001 1.40 ± 0.50 0.10 ± 0.00 0.0015 ± 0.0003 0.792 ± 0.145 0.517 ± 0.141

Notes. The measurements assume a density of one trap per pixel, and the astrophysical measurement is fitted as a function of the charge trap’s characteristic release time τ as . The parameters in this table correspond to a trap density of 24% of the Euclid end-of-life estimate.

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