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Fig. 1.
Part of the LIGO/Virgo localisation sky map on the northern hemisphere for GW190425. The full sky map has a 90% credible sky area of 7461 deg2, which reduces to 1378 deg2 at the 50% level. The blue contour encompasses the 50% credible sky area on this part of the sky. The inset shows the approximate Apertif FOV in yellow.
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