Deep Imaging Surveys of Star-forming Clouds. I. New Herbig-Haro Flows in NGC 2264

Abstract

We have embarked on a major, imaging survey of nearby star-forming regions using wide-field imaging detectors to identify and characterize the full population of Herbig-Haro flows from newborn stars in each region. In this study we present our survey results for the NGC 2264 region in Monoceros, where we have found a number of new Herbig-Haro objects, HH 571-HH 585, including several giant, parsec-scale flows. We discuss the individual flows and attempt to locate their region of origin. In particular, we identify two quadrupolar HH flows emanating from two cloud cores and associated with major molecular outflows. We also draw attention to what appears to be a region of major blowout of gas from a cloud core rich in young stars.