Friday, November 16, 2012

Term Paper: "Our astrochemical heritage"

As you know my theme is "Our astrochemical heritage", I am writing my paper in Google Docs. Here I write some ideas on the project.

Complex chemicals are made in cold clouds. These are three dimensional regions surrounded by insulating grains, and gases, where new stars are born, like in the Orion Nebula, in the constellation by that name. Around Herbig-Haro objects we get Herbig stars, and other young stars. These regions are cold because of the insulation, when one gets to a few degrees Kelvin, atoms start to assemble to make molecules. One of those molecules is water, which is crucial for the origin of life. These molecules can be organic also, the dust surfaces act like physical catalyst, as opposed to chemical, or even nuclear chemical catalysts. The CNO cycle in stars, is one of these nuclear chemical catalyst, it is one way to fuse H into He, without consuming the other three nuclei, C, N, and O; these mutate one into the other, by converting neutrons into protons, and vice versa. They do this with the help of neutrinos and positrons. You can imagine this process, as the neutrino oscillations, these particles themselves mutate one into the other,  they have tiny masses which allows them to mutate; because they don't have electric charge, they can transform into each other inside stars like the sun.

Our heritage is to become more and more complex, one could think of life as  an origin of order.

This path to complex organisms started inside hot Cores. We have differentiation at the most elementary level, H and D separate, setting up a ratio which is still with us inside the solar system. From these most elementary of structure formation, we go all the way to Intelligent Life!

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