K+-meson production in pA (A = C, Cu, Au) collisions has been studied using
the ANKE spectrometer at an internal target position of the COSY-Julich ac
celerator. The complete momentum spectrum of kaons emitted at forward angle
s, theta less than or equal to 12 degrees, has been measured for a beam ene
rgy of T-p = 1.0 GeV, far below the free NN threshold of 1.58 GeV. The spec
trum does not follow a thermal distribution at low kaon momenta and the lar
ger moments reflect a high degree of collectivity in the target nucleus.