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Models for the infrared cavity of HH 46/47

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dc.contributor.author Raga, A. C.
dc.contributor.author Noriega-Crespo, A.
dc.contributor.author Gonzalez, R. F.
dc.contributor.author Velazquez, P. F.
dc.date.accessioned 2008-07-31T22:22:55Z
dc.date.available 2008-07-31T22:22:55Z
dc.date.issued 2004-09
dc.identifier.citation The Astrophysical Journal Supplement Series, 154:346–351, 2004 September, DOI: 10.1086/422639 en_US
dc.identifier.clearanceno 04-2155
dc.identifier.uri http://hdl.handle.net/2014/40885
dc.description.abstract We have modeled the limb-brightened cavity seen in the new Spitzer Space Telescope IR images of the southwest lobe of HH 46/47 as the bow shock driven by an outflow from a young, low-mass star. We present models in which the outflow is a perfectly collimated, straight jet, models in which the jet precesses, and finally a model in which the outflow takes the form of a latitude-dependent wind. We study cases in which the outflow moves into a constant-density cloud and into a stratified cloud. We find that the best agreement with the observed cavity is obtained for the precessing jet in a stratified cloud. However, the straight jet (traveling in a stratified cloud) also gives cavity shapes close to the observed one. The latitude-dependent wind model that we have computed gives cavity shapes that are substantially wider than the observed cavity. We therefore conclude that the cavity seen in the Spitzer observations of the southwest lobe of the HH 46/47 outflow do not seem to imply the presence of a latitude-dependent wind, as it can be modeled successfully with a perfectly collimated jet model. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher The American Astronomical Society en_US
dc.subject Herbig Haro objects en_US
dc.subject jets and outflows en_US
dc.subject infrared en_US
dc.title Models for the infrared cavity of HH 46/47 en_US
dc.type Article en_US


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