We present new infrared data from a survey for embedded protostellar jets in the Orion A cloud .
This survey makes use of the S ( 1 ) v = 1 –0 line of molecular hydrogen at \lambda = 2.12 \mu m to search for infrared jets deep inside the cloud and thus hidden from view at optical wavelengths .
We present data on the three flows associated with the Herbig-Haro objects HH 43/38 & HH 64 , HH 65 , and the L1641-N giant flow . HH 43 , HH 38 and HH 64 are part of one H _ { 2 } flow extending over at least 1.4 pc .
We identify a deeply embedded 1.3 mm and IRAS source ( HH 43 MMS1 = IRAS 05355 $ - $ 0709C ) as the likely driving source , while the infrared source previously assumed to drive HH 43/38 ( HH 43-IRS1 = IRAS 05357 $ - $ 0710 ) is seen to drive a smaller jet .
The morphology of HH 43-IRS1 suggests that it is a star+disk system seen close to edge-on .
We identify another large H _ { 2 } flow apparently comprising the L1641-S3 CO outflow and the redshifted lobe of the L1641-S CO outflow containing HH 65 .
This flow extends over at least 2.6 pc and appears strongly curved .
It is driven by L1641-S3 IRS , a deeply embedded 1.3 mm and IRAS source ( L1641-S3 MMS1 = IRAS 05375 $ - $ 0731 ) .
Finally , we have found some additional large H _ { 2 } features to the east of V 380 Ori and the HH 1/2 system , which probably outline another part of the L1641-N outflow .
The molecular flow MB 20/21 , which extends to the south from V 380 Ori , also appears to be a part of the L1641-N outflow .