Table 2 Detection efficiency at each steps

From: An interference-based method for the detection of strongly lensed gravitational waves

 

Single

Double

Triple

Quadruple

Total systems

Total images

Simulation input

28

215

0

13

256

510

Step 1

0

40 (18.6%)

–

7 (53.8%)

47 (18.3%)

58 (11.3%)

Step 2

–

2 (5%)

–

1 (15.2%)

3 (6.4%)

8 (13.8%)

Step 3

–

–

–

1 (100%)

–

–

  1. This table summarizes the number (efficiency) of SLGWs identified through each steps. ‘Simulation input’ refers to the number of SLGW detected by three Cosmic Explorer detectors over 3 years. ‘Single’ refers to events where only one image has an SNR greater than 12, while ‘double’, ‘triple’ and ‘quadruple’ correspond to systems with two, three and four images, respectively, each with an SNR exceeding 12. ‘Total systems’ refers to the total number of strong lensing systems, and ‘Total images’ refers to the total number of strong lensing images within these systems. In summary, at step 1 (SLGW identification), 58 strong lensing images were identified, including 40 double-image systems and 7 quadruple-image systems. At step 2 (SLGW pairing), 2 double-image systems (FAP <10−2) and one quadruple-image system (FAP <10−6) were identified. Host galaxy identification is step 3.
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