New proplyds, outflows, shocks, and a reflection nebula in M43 and the outer parts of the Orion nebula.
Abstract (from CDS):
Hubble Space Telescope WFPC2 images made as planned parallel observations have produced emission-line images of fields in the outer portions of the Orion Nebula and near the center of the companion H II region, M43. Examination of these images have uncovered three new bright proplyds and one silhouette proplyd. Two of the bright proplyds lie within M43 and are photoionized by its central star, NU Ori. The new bright proplyd in the Orion Nebula shows a monopolar microjet, and analysis of its size and surface brightness indicates that it lies well in the foreground. Symmetric shocks indicate bipolar flow around the K8e star V1348 Ori (304-539) near θ2 Ori C. Evidence for multiple outflows from a source southeast of 036-927, well south of the bright bar feature of the nebula, is indicated. A bright reflection nebula was found around the B1.5 Vp star LP Ori (098-753). The form of this object indicates that this star is moving within the veil of neutral material that lies in front of M42.