We present Very Large Array ( VLA ) high resolution observations of the NH _ { 3 } ( 1,1 ) and NH _ { 3 } ( 2,2 ) molecular transitions towards the high mass star forming region AFGL 437 .
Our aim was to investigate if the poorly collimated CO molecular outflow previously detected in the region is the result of a projection effect , with no intrinsic bipolarity , as suggested by Gómez et al .
We complemented our observations with radio continuum archived data from the VLA at 2 and 3.6 cm , and with unpublished public data at 450 \mu m taken with Submillimetre Common-User Bolometer Array at the James Clerk Maxwell Telescope .
Ammonia emission was found mainly in three clumps located at the south and east of the position of the compact infrared cluster of AFGL 437 , where the CO outflow seemed to have its origin .
One of the NH _ { 3 } ( 1,1 ) clumps coincides with the maximum of NH _ { 3 } ( 2,2 ) and with a local peak of emission at 450 \mu m. A near infrared source ( s11 ) is also found at that position .
Our continuum map at 2 cm shows extended elongated emission associated with the infrared source AFGL 437W .
This elongated morphology and its spectral index between 3.6 and 2 cm ( \simeq 0.4 ) suggest the presence of a jet in AFGL 437W .
We suggest that several molecular bipolar outflows may exist in the region .
The observed CO outflow would be the superposition of those individual outflows , which would explain its low degree of collimation observed at larger scales .