  We have studied experimentally pressure broadening and shift of Ag D1 line
caused by He, Ar and N2 buffer gases. The measurements were done in a heat-pipe
type absorption cell at a temperature of ~1000 K and gas pressures up to 1000
torr. The measured values for pressure broadening and shift (in MHz/Torr) are
as follows: Ag-He 5.8(1), +1.16(2); Ag-Ar 5.2(2), -2.28(4); Ag-N2 5.2(1),
-2.52(7). The "+" and "-" signs indicate the direction for the shifts to the
blue and red side of the spectrum, respectively.
