Table 3. Open in new tab This table...

Table 3.

This table compares the shear calibration bias, both multiplicative and additive bias for different simple simulation runs. In each simulation except the first and last row, 5 million objects were simulated. We simulated 15 million objects for the first and last row to obtain sufficiently small uncertainties.

Simulation variants	Galaxy profile	PSF profile	Shear	Background noise level	m₁ × 10²	m₂ × 10²	c₁ × 10⁴	c₂ × 10⁴
Basic-0.02	Gaussian	Gaussian	0.02	5714.36 e-/arcsec²	0.01 ± 0.10	−0.02 ± 0.10	−0.02 ± 0.14	1.06 ± 0.14
Basic-0.05	Gaussian	Gaussian	0.05	5714.36 e-/arcsec²	0.23 ± 0.07	0.22 ± 0.07	0.05 ± 0.33	1.08 ± 0.33
Basic-0.1	Gaussian	Gaussian	0.1	5714.36 e-/arcsec²	0.99 ± 0.03	0.99 ± 0.03	0.13 ± 0.33	0.88 ± 0.33
Doublesky-0.02	Gaussian	Gaussian	0.02	11428.72 e-/arcsec²	−0.12 ± 0.18	0.01 ± 0.18	0.06 ± 0.36	1.04 ± 0.36
RomanPSF-0.02 (non-rotated)	Gaussian	Roman	0.02	5714.36 e-/arcsec²	0.13 ± 0.10	0.18 ± 0.10	−0.02 ± 0.19	5.33 ± 0.19

Simulation variants	Galaxy profile	PSF profile	Shear	Background noise level	m₁ × 10²	m₂ × 10²	c₁ × 10⁴	c₂ × 10⁴
Basic-0.02	Gaussian	Gaussian	0.02	5714.36 e-/arcsec²	0.01 ± 0.10	−0.02 ± 0.10	−0.02 ± 0.14	1.06 ± 0.14
Basic-0.05	Gaussian	Gaussian	0.05	5714.36 e-/arcsec²	0.23 ± 0.07	0.22 ± 0.07	0.05 ± 0.33	1.08 ± 0.33
Basic-0.1	Gaussian	Gaussian	0.1	5714.36 e-/arcsec²	0.99 ± 0.03	0.99 ± 0.03	0.13 ± 0.33	0.88 ± 0.33
Doublesky-0.02	Gaussian	Gaussian	0.02	11428.72 e-/arcsec²	−0.12 ± 0.18	0.01 ± 0.18	0.06 ± 0.36	1.04 ± 0.36
RomanPSF-0.02 (non-rotated)	Gaussian	Roman	0.02	5714.36 e-/arcsec²	0.13 ± 0.10	0.18 ± 0.10	−0.02 ± 0.19	5.33 ± 0.19

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