SF-04-0031

Deep VLA observations toward the OMC 2 region

Mayra Osorio, Guillermo Blazquez-Calero, Guillem Anglada, Ana Karla Diaz-Rodriguez, Thomas Megeath, Jose Francisco Gomez, John Tobin, Elise Furlan, Luis Felipe Rodriguez, Will Fischer, Amelia M. Stutz

We present Very Large Array continuum observations at 7mm,1.3 cm, 3 cm, and 5 cm, reaching a maximum angular resolution of ~0.4" (~150 au). The observations were centered near FIR 4, in the Integral Shaped Filament, covering the whole OMC 2 region and part of OMC 3. We report the detection of 57 radio sources in the field of view, and we found hints of variability in a dozen of them. Of the detected souces 36 may be tracing young stellar objects, 4 are tracing jet/outflow knots, and 6 may be tracing extragalatic sources. We identify the driving source of 9 molecular outflows previously detected in the field. We also detect radio emission that could be tracing photoevaporating disks. We found possible binaries, with projected separations ranging from 150 to 3000 au. These observations can be considered a pilot project that shows the potential of deep observations to be carried out with the new generation of radio interferometers such as the ngVLA and the SKA.

[Poster PDF File]