SIMBAD references

2007AJ....133..952G - Astron. J., 133, 952-964 (2007/March-0)

Velocity structure in the Orion nebula. I. Spectral mapping in low-ionization lines.


Abstract (from CDS):

High-dispersion echelle spectroscopy in optical forbidden lines of O0, S+, and S2+ is used to construct velocity-resolved images and electron-density maps of the inner region of the Orion Nebula with a resolution of 10 km/sx3''x2''. Among the objects and regions revealed in this study are (1) the Diffuse Blue Layer, an extended layer of moderately blueshifted, low-density, low-ionization emission in the southeast region of the nebula; (2) the Red Bay, a region to the east of the Trapezium where the usual correlation between velocity and ionization potential is very weak, and where the emitting layer is very thick; and (3) HH 873, a new redshifted jet to the southwest of the Trapezium.

Abstract Copyright:

Journal keyword(s): ISM: H II Regions - ISM: Herbig-Haro Objects - ISM: Individual: Name: Orion Nebula - ISM: Jets and Outflows - Stars: Formation - Techniques: Spectroscopic

Simbad objects: 33

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