University of Georgia researchers show component of mothballs is present in deep-sp...(e surface of dust grains are believed to...),Health

Date:9/2/2009

e surface of dust grains are believed to form many molecules found on Earth, perhaps including the amino acids and peptides essential as the building blocks of life. And it is in these clouds that new stars form, so understanding how naphthalene fits into the equation (so to speak) of all this could provide insights into how stars and planetary systems form.

The new research also helps confirm earlier predictions that molecules called polycyclic aromatic hydrocarbons (PAHs) are the main source of the UIRs, since protonated naphthalene is a PAH.

"Protonated naphthalene itself does not explain all the UIR spectra," said Duncan, "but the characteristics of its spectrum suggest that a distribution of larger protonated PAHs could do this. The same spectral changes caused by the addition of protons to these larger systems would likely explain all the UIR patterns, thus ending one of the oldest mysteries in astronomy." Duncan and his group are now working to make and study these larger protonated PAHs.

Duncan's success in simulating the conditions of deep space in the lab and capturing that elusive proton could also have a payoff in studying other components of stellar clouds too.

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Contact: Philiip Lee Williams phil@franklin.uga.edu 706-542-8501 University of Georgia Source:Eurekalert

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