Blending effects on shear measurement synergy between Euclid-like and LSST-like surveys

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Table 3.

Number densities for joint and combined source catalogues.

Number density (arcmin⁻²) for joint source catalogue

	Grid [20.0, 25.2]			Random [20.0, 25.2]			Random [20.0, 27.5]
Surveys	Euclid-like	LSST-like	Joint	Euclid-like	LSST-like	Joint	Euclid-like	LSST-like	Joint
n_input	38.39	38.39	38.39	38.39	38.39	38.39	186.67	186.67	186.67
n_det	33.95	33.95	33.95	32.25	32.25	32.25	40.54	40.54	40.54
n_eff	27.49	27.92	30.50	26.49	27.49	29.44	29.14	29.41	33.08
n_eff/n_det	0.81	0.82	0.90	0.82	0.85	0.91	0.72	0.72	0.82

Number density (arcmin⁻²) for combined source catalogue

Surveys	Euclid-like	LSST-like	Combined	Euclid-like	LSST-like	Combined	Euclid-like	LSST-like	Combined

n_det	34.00	38.27	38.32	33.38	36.35	37.48	42.43	93.03	94.92
n_eff	27.52	31.47	34.08	27.39	30.95	33.79	30.31	39.17	44.08
n_eff/n_det	0.81	0.82	0.89	0.82	0.85	0.90	0.71	0.42	0.46

Notes. n_input is the input source density; n_det is the detection number density; n_eff is the effective number density. The ‘joint’ catalogue is the subset of galaxies detected in both surveys; ‘Combined’ catalogue is the union of the sources detected in both surveys.

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