  The author reports a result of an interferometric observation of the
semiragular pulsating star with an unusual narrow molecular line profile, X
Her, in the CO J=1-0 line with the Berkeley-Illinois-Maryland array. In the CO
spectrum, a double-component profile (including narrow and broad components) is
seen as reported by previous observations. The narrow component consists of two
spiky peaks. The spatial structure of the board component shows bipolar shape,
and that of the narrow component shows an elliptical/spherical shape. The two
peaks in the narrow component show a systematic difference in the integrated
intensity map. The kinematical and geometrical properties of the narrow
component are reminiscent of a Keplerian rotating disk with the central mass of
0.9 M_sun, though an interpretation by an expansion disk seems to be more
natural. A secondary bipolar flow instead of the disk cannot be fully excluded
as an interpretation of the narrow line.
