Seminar Monday 12th of May, 1pm:
Dynamics in large carbon-rich structures: how the first carbon molecules may have synthesized in interstellar space
H. R. Sadeghpour, ITAMP - Harvard University, Cambridge, MA 02138
Carbon is the 4th most abundant element in the Universe. It is the building block of life. Hydrocarbons, alcohols, acids, aldehydes, amines, and sugar have been detected in interstellar medium (ISM). There's substantial evidence pointing to the existence of polycyclic aromatic hydrocarbons (PAHs) in space. Vibrational lines of fullerenes have been detected in the microwave in nebulae. The mere fact that such atomistically pristine molecules are now known to exist in the dust of the ISM, while their natural terrestrial abundance is low, raises fascinating challenges. Where do they come from? How are they synthesized? What are the dynamics leading to self-assembly and what are the rates for such reactions? In this presentation, I will attempt at addressing some of these questions.
Dr. Hossein R. Sadeghpour (Harvard, Director of ITAMP, http://www.cfa.harvard.edu/itamp/) is a theoretician with a wide range of interests across ultracold chemistry, nanodevices, and astrochemistry. He has >120 publications, including papers in Science and Nature.