The Nature and Frequency of Outflows from Stars in the Central Orion Nebula Cluster

摘要: Recent Hubble Space Telescope images have allowed the determination with unprecedented accuracy of motions and changes shocks within inner Orion Nebula. These originate from collimated outflows very young stars, some ionized portion nebula others host molecular cloud. We doubled number Herbig-Haro objects known find that best-known a relatively few optically visible X-ray source COUP 666 driving many them. While isolated are driven by single outflows, groups result stellar having jets oriented in multiple directions at similar times. This explains feature aligned opposite plane sky usually blue shifted because redshifted pass into thick Photon Dominated Region behind nebula. There two regions which optical for there no candidate sources SIMBAD data base.