The structure of Herbig-Haro object 43 and Orion dark cloud extinction
Abstract
New ultraviolet and optical observations of Herbig-Haro Object No. 43 are reported. Continuum and emission line fluxes in the range 1250 A equal to or less than lambda equal to less than 7350A have been measured. The continuum fluxes are best matched by an enhanced H two photon component added to H free bound emission, assuming theta Ori extinction curve with E(B-V) = 0.2, R = 5. The strucutre and dynamics of three components within the object are discussed. The object has a radiative output of equal to or greater than 0.23 infrared luminosity in ultraviolet and optical radiation combined. The energy requirements are discussed in terms of the production of shock waves by a collimated, supersonic mass outflow from a nearby infrared source.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1984
- Bibcode:
- 1984STIN...8535831S
- Keywords:
-
- Emission Spectra;
- Herbig-Haro Objects;
- Interstellar Extinction;
- Magnetic Flux;
- Orion Nebula;
- Radiant Flux Density;
- Energy Spectra;
- Fluorescence;
- Iue;
- Photons;
- Radiation Spectra;
- Shock Waves;
- Ultraviolet Spectrophotometers;
- Astronomy