... This emission generally is highly blue-shifted (O'Dell etб al 1997), indicating that they are Herbig-Haroobjects rather than part of the nebular emission. ...
... Phenomena such as bipolar molecular outflows, masers and the Herbig-Haro (HH) objects and jets are all indicators of a YSO undergoing mass loss. ...
... The outflow phase is characterised by the impact of high velocity winds with the surrounding interstellar medium, creating bipolar molecular outflows, masers, Herbig-Haro (HH) objects and jets. ...
... There is a complex chain of emission with three major concentrations consistent with the morphological characteristics of Herbig-Haro (HH) objects arising from the interaction of a collimated flow with the ambient medium (Reipurth & Bally, 2001). ...
... and methanol masers are associated with ultra-compact HII regions, embedded infrared objects, hot molecular cores, Herbig-Haroobjects and outflows from young stellar objects. €аHigh resolution observations from long baseline arrays, such as MERLIN in the ...
... We will also be able to define better the sharp fronts expected around ionised gas clouds, investigate in more detail the morphology and environment of Herbig-Haroobjects and search for more distant or less spatially extended examples. ...
... and related objects as well as the other indicators of youth (e.g. infrared sources, molecular clouds, cometary nebulae, Herbig-Haroobjects, flare stars, T Tauri stars and other PMS stars) allows us to presume that the associations of SFR in the TDC ...
... They emit most strongly in shock-excited transitions of H 2 and [FeТљII] in the near-infrared, and low excitation emission lines typical of Herbig-Haroobjects in the optical in regions where the jet material impacts the surrounding medium. ...