The structure of Herbig-Haro object 43 and Orion dark cloud extinction

Details The structure of Herbig-Haro object 43 and Orion dark cloud extinction The structure of Herbig-Haro object 43 and Orion dark cloud extinction

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.1820s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, Sept. 1985, p. 1820-1827.

Astronomy and Astrophysics

Astronomy

39

Herbig-Haro Objects, Interstellar Extinction, Orion Constellation, Continuous Spectra, Iue, Spectrophotometry, Ultraviolet Spectra

Scientific paper

New ultraviolet and optical observations of Herbig-Haro object No. 43 are reported. Continuum and emission-line fluxes in the wavelength range 1250 to 7350 A have been measured. The continuum fluxes are best matched by an enhanced H exp 0 two-photon component added to H free-bound emission, assuming a Theta Ori extinction curve with E(B - V) = 0.2, R = 5. The structure and dynamics of three components within the object are discussed. The object has a radiative output of not less than 0.23 solar luminosities 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.

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