Euclid: Improving the efficiency of weak lensing shear bias calibration - Pixel noise cancellation and the response method on trial

Home

All issues

Volume 683 (March 2024)

A&A, 683 (2024) A240

Full HTML

Open Access

Table 4

Efficiency comparison for galaxies at random positions.

Method	µ-bias			c-bias
	RI	σ_RI	AI	RI	σ_RI	AI
Shear interval [−0.1, 0.1]

Shape local	3.6	0.3	3.6	3.8	0.2	3.8
Both local	6.3	0.6	3.9	6.8	0.5	4.2
Shape global	3.8	0.3	3.8	4.1	0.3	4.1
Both global	8.4	0.6	5.1	9.5	0.6	5.8
RM	3.7	0.3	3.7	0.3	0.02	0.3

Shear interval [−0.02,0.02]

Shape local	3.7	0.2	3.7	3.8	0.2	3.8
Both local	6.9	0.3	4.2	7.1	0.4	4.3
Shape global	4.3	0.3	4.3	4.2	0.3	4.2
Both global	10.9	1.1	6.6	10.5	0.7	6.4
RM	69.5	3.3	69.5	1.7	0.1	1.7

Notes. This table includes galaxies with input magnitudes brighter than 26.5, and the same S/N larger than ten selection. RM stands for the response method, RI for runtime improvement, and AI for area improvement. The uncertainty for the runtime improvement is listed as σ_RI.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.