Jets and HH Objects in the Rho Ophiuchi Embedded Cluster

GÓMEZ, M., STARK, D., WHITNEY, B., CHURCHWELL, E.

ASTRONOMICAL JOURNAL

University of Chicago Press

Lugar: Chicago; Año: 2003 p. 863 - 886

0004-6256

We present results from a near-infrared 2.12 micron survey covering a large portion of the Rho Ophiuchi cloud (three regions of ~20´ × 20 each, on average) in an effort to improve the detection of embedded molecular hydrogen emission objects in the cloud. We complement these observations with deep optical [S II] images of six areas of 10´×10´ each. We recovered all previously known optical jets/Herbig-Haro (HH) objects as well as H2 outflows in the region and report the detection of four new HH objects and 13 near-infrared knots. We provide coordinates and describe the morphology of these knots, several of which are identified as belonging to the same flow on the basis of morphological and proximity arguments. We discuss likely exciting sources. A unique association of the driving star is not always possible, as several young stars lie in close proximity to these knots.