Abstract
The spectrum of the z = 3.285 quasar, Q0302-003, shows a large (~10 Mpc) void in the Lyα forest at z~3.17. By simulating the absorption spectrum of the quasar with a range of Lyα forest cloud parameters, we find that the probability of such a void occurring by chance is ~2X10^-4^. Since the void is near (although not centered on) the redshift of a bright foreground quasar, we discuss the possibility that the void results from ionization of the clouds by the EUV radiation of this QSO.
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