Abstract

HCO(+) J = 3-2 emission from the molecular cloud centered on S140 IRS 1 has been observed with a spatial resolution of 20 arcsec. The innermost region of the cloud is characterized by strong HCO(+) J = 3-2 emission elongated in a north-south direction, having the same orientation as the bipolar outflow previously discovered from CO line wings. The HCO(+) J = 3-2 lines exhibit broad, asymmetric wings. The full width of the wings at the position of IRS 1 is 30 km/s. In a nine-point average spectrum, the wings have a total width of 60 km/s. The blue and red wing emissions show no spatial displacement, in contrast to CO line wings.

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