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    absorption bands tagged posts

    Solving one of the most intriguing Q’s in Astrochemistry: DIBs

    August 21, 2015, Categories  Astronomy/Space, Chemistry/Nanotechnology, Physics

    This artist's conception symbolically represents complex organic molecules, known as polycyclic aromatic hydrocarbons, seen in the early universe. These large molecules, comprised of carbon and hydrogen, are among the building blocks of life. NASA's Spitzer Space Telescope is the first telescope to see polycyclic aromatic hydrocarbons so early--10 billion years further back in time than seen previously. Credit: NASA/JPL-Caltech/T. Pyle (SSC)

    This artist’s conception symbolically represents complex organic molecules, known as polycyclic aromatic hydrocarbons, seen in the early universe. These large molecules, comprised of carbon and hydrogen, are among the building blocks of life. NASA’s Spitzer Space Telescope is the first telescope to see polycyclic aromatic hydrocarbons so early–10 billion years further back in time than seen previously. Credit: NASA/JPL-Caltech/T. Pyle (SSC)

    DIBs  (diffuse interstellar bands) are a collection of about 400 absorption bands that show up in spectra of light that reaches the earth after traversing interstellar medium. Indications exist they may arise from the presence of large hydrocarbon molecules. Recent experiments lend novel credibility to this hypothesis.

    Among the hydrocarbons that are p...

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