GN-z11-flash was a signal from a man-made satellite not a gamma-ray burst at redshift 11

Michał J. Michałowski, Krzysztof Kamiński, Monika K. Kamińska +1

Long gamma-ray bursts (GRB), explosions of very massive stars, provide crucial information on stellar and galaxy evolution, even at redshifts z ~ 8 - 9.5, when the Universe was onl…