Computer Science
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30760a&link_type=abstract
Spitzer Proposal ID #30760
Computer Science
Scientific paper
The colossal size of giant Herbig-Haro (HH) flows enable them to impact cloud material parsecs away from their source, thereby affecting the kinematics, density and chemistry of a substantial volume of their parent cloud. These energetic phenomena are very important to the general dynamics and evolution of star-forming regions. We propose to observe two giant outflows with IRAC and IRS. Using deep IRAC images, we will map the total extent of the giant outflow cavities. The IRAC data will be used to analyze the morphology, luminosity and shape of the flows, which will then be compared to high-resolution molecular outflow (CO) maps in order to study the outflow entrainment process. We will also compare our data with hydrodynamic simulations of outflows in order to further constrain the nature of the protostellar wind and the outflow-cloud interactions. IRS maps will provide the data to study the properties of the shocks responsible for entraining the surrounding gas. Combining the IRS data and multi-line millimeter data will allow us to estimate the energy transfer efficiency between shocks and the cloud gas and will provide observational constrains to shock chemistry models.
Arce Hector
Goodman Alyssa
Mac Low Mordecai-Mark
Noriega-Crespo Alberto
Raga Alex
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