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    PAH tagged posts

    James Webb Space Telescope reveals new surprises on Galaxy Organic Molecules Near Black Holes

    October 12, 2022, Categories  Astronomy/Space

    James Webb Space Telescope reveals new surprises on galaxy organic molecules near black holes
    Maps of the central ∼6″ region of NGC 7469, which includes the AGN and the circumnuclear ring of star formation. Top-left panel: in color and black contours is the JWST/F770W PSF-subtracted image (which mainly traces the 7.7 μm PAH band). Black regions (s1, s2, s3, s4, s5, s6, and s7) correspond to selected circumnuclear zones of NGC 7469. Red and blue regions (o1, o2, o3, o4, o5, and o6) are in the outflow region. The green line represents the orientation of the nuclear molecular gas bar. The gray lines correspond to the approximate outflow region according to the [S IV]λ10.51 μm velocity map (see Appendix B). The white box represents the JWST/MRS ch1 FoV (3.2″ × 3.7″), which is practically identical to the Spitzer/IRS angular resolution...
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    Chemical Sleuthing unravels possible path to forming life’s Building Blocks in Space

    March 6, 2018, Categories  Astronomy/Space

    An asteroid belt orbits a star in this artist's rendering. In a new study, experiments at Berkeley Lab explored possible chemical pathways that could form complex hydrocarbons -- like those found in some meteorite samples - in space. Credit: NASA/JPL-Caltech

    An asteroid belt orbits a star in this artist’s rendering. In a new study, experiments at Berkeley Lab explored possible chemical pathways that could form complex hydrocarbons — like those found in some meteorite samples – in space. Credit: NASA/JPL-Caltech

    Experiments reveal how a hydrocarbon called pyrene could form near stars. Scientists have used lab experiments to retrace the chemical steps leading to the creation of complex hydrocarbons in space, showing pathways to forming 2D carbon-based nanostructures in a mix of heated gases...

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    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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