Clustering of the Lyman Alpha Clouds in the Line of Sight to the Z=3.66 QSO 0055-269

. The spectrum of the Q0055-269 (z = 3:66) has been observed at the resolution of 14 km s (cid:0)1 in the wavelength interval 4750{6300 (cid:23)A. The statistical distribution of the Doppler parameter for the Ly(cid:11) lines is peaked at b ' 23 km s (cid:0)1 . The column density distribution is described by a power-law with a break at logNHI ' 14:5. Signi(cid:12)cant clustering, with (cid:24) ' 1 at (cid:1)v = 100 km s (cid:0)1 , is detected for lines with logNHI (cid:21) 13:8. Two voids of size (cid:24) 2000 km s (cid:0)1 are found in the spectrum with a probability of 2 (cid:2)10 (cid:0)4 .