... GRB 021211

Based on observations made with ESO telescopes under programmes 70.D-0412 and 270.D-5022.

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... the GRB

We added in quadrature 0.03 mag to the errors of all points in order to account for the use of different telescopes and calibrations.

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... reported

Assuming $\Omega_{\rm m} = 0.3$, $\Omega_\Lambda = 0.7$, H₀ = 71 km s^-1 Mpc^-1, the distance modulus at z=1.006 is $\mu = 44.07$ mag.

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