作者: C. R. O’Dell , Takao Doi
DOI: 10.1086/345512
关键词: Orion Nebula 、 Physics 、 Proper motion 、 Astronomy 、 Nebula 、 Radial velocity 、 Outflow 、 Doubly ionized oxygen 、 Ionization 、 Infrared 、 Astrophysics
摘要: The brightest portion of the Orion Nebula has been reimaged with Hubble Space Telescope in Hα, [N II], and [O III]. Comparison earlier Wide Field Planetary Camera 2 images going back as much 8 yr allowed determination tangential velocities (proper motions) down to about 10 km s-1 for a variety sources. Multiple outflow systems are found associated individual proplyds ionized nebula (HH 518, HH 624, possibly 507). Orion-S complex radio infrared sources is source multiple outflows. A new system 625) identified coming from blueshifted imbedded high velocity CO flow region, this object having CO, H2, low ionization optical components. originating or near FIR 4 likely 530. inferred data lie Orion-S. This (OOS) clearly feeds 269 529, which along straight line. There evidence that also 528, 202, 203/204, all (except 528 whose radial unknown). no strong radio, infrared, X-ray within positional ellipse OOS.