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Table E.2.

Number of KNe and KNe + GRB detected by Rubin, operating in synergy with ET + 2 CE for the two observational strategies 1ep and 2ep and following up events with sky localisation Ω90<1 deg2.

APR4 BLh

Ω90 Transient Uniform Gaussian Uniform Gaussian
[deg2] Followed Detected Followed Detected Followed Detected Followed Detected
1ep/2ep 1ep/2ep 1ep/2ep 1ep/2ep
α = 0.5 ET-Δ
+
2CE
1 KN 1609 (3.2%) 430/227 976 (1.9%) 362/206 1503 (3.0%) 350/196 953 (1.9%) 529/293
KN+GRB 528/299 424/260 448/261 582/349

ET-2L
+
2CE
1 KN 1830 (3.6%) 481/251 1149 (2.3%) 426/235 1677 (3.3%) 393/214 1104 (2.2%) 586/337
KN+GRB 605/341 501/300 502/283 652/403

α = 1.0 ET-Δ
+
2CE
1 KN 8162 (16.2%) 2266/1266 4956 (9.8%) 2086/1195 7398 (14.7%) 1868/1024 4824 (9.6%) 2848/1673
KN+GRB 2595/1476 2301/1359 2192/1231 3017/1845

ET-2L
+
2CE
1 KN 8818 (17.5%) 2401/1322 5502 (10.9%) 2176/1250 8147 (16.2%) 1954/1087 5367 (10.6%) 3006/1724
KN+GRB 2735/1533 2402/1416 2301/1306 3191/1910

Notes. Both the triangular and 2L-shaped ET configurations are considered. The analysis is performed using different EOSs (APR4 or BLh), NS mass distributions (uniform or Gaussian), and α values (0.5 and 1.0). For each scenario, we report the total number of followed events (within Rubin's footprint), the corresponding telescope time required for follow-up (expressed as a percentage below the number of followed events), and the number of detected events. All listed data refer to 10 years of observations.

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