The Herbig-Haro objects in the GUM Nebula

Details The Herbig-Haro objects in the GUM Nebula The Herbig-Haro objects in the GUM Nebula

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....63..237d&link_type=abstract

Astronomy and Astrophysics, vol. 63, no. 1-2, Feb. 1978, p. 237-241.

Astronomy and Astrophysics

Astrophysics

60

Cosmic Dust, Gum Nebula, Stellar Evolution, Stellar Spectra, Stellar Spectrophotometry, Clouds, Emission Spectra, Shock Waves, Stellar Mass Ejection

Scientific paper

A detailed set of spectrophotometric observations has been obtained of the two newly discovered Herbig-Haro objects associated with a dark cloud embedded in the Gum Nebula. The objects appear to be physically connected and are associated with a dust-embedded emission-line star. They are most likely to be circumstellar radiating shock waves driven by some multiple eruptive phenomena occuring at the central star, perhaps associated with an FU Orionis-type event. Their age is only 200 to 300 years; from the shock models, the density of the dark cloud is between 45 and 95 per cu cm.

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