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The simplest molecule, H2, is also the most abundant. Other known molecules include simple groupings such as carbon monoxide (CO), ammonia (NH3) and water (H2O); simple organic molecules such as ethyl alcohol (CH3CH2OH), formaldehyde (H2CO), and acetic acid (CH3COOH); ... From Interstellar Molecules to ...
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www.encyclopedia.com/doc/1O80-interstellarmolecule.html
www.encyclopedia.com/doc/1O80-interstellarmolecule.html
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Thus the most abundant molecule in the ISM, carrying most of the mass and playing a key role in excitation, thermal balance, and gas-phase chemistry, is virtually invisible to direct observation. As a consequence, most of what we know about interstellar molecules comes from observations of so-called;
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www.astronomy.ohio-state.edu/~pogge/Ast871/Notes/Molecu...
www.astronomy.ohio-state.edu/~pogge/Ast871/Notes/Molecules.pdf
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These include the most abundant interstellar molecule of all, H2, as well as its isotopologue, HD. In addition the second most abundant molecule in space, ...
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journals.cambridge.org/production/action/cjoGetFulltext...
journals.cambridge.org/production/action/cjoGetFulltext?fulltextid=415764
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The thought had already entered astronomers' minds that molecules might be detected in space using radio waves. Sure enough, in 1968, the first radio lines from interstellar molecules were discovered, by astronomer Charles H. Townes of the University ... Hydrogen is the simplest and most abundant element in the universe,
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www.cfa.harvard.edu/mmw/history.html
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To account for observations, about 10% of the interstellar carbon has to be in PAH molecules, making these species the most abundant free organic molecules ...
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www.springerlink.com/index/y8174v4v5651uv11.pdf
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The most weakly bound complexes involve the most abundant interstellar ..... of M+ with closed-shell molecules, several abundant interstellar radicals, ...
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pubs.acs.org/cgi-bin/jtext?jpcafh/104/i19/abs/jp993485q
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Thus, only a few of the most abundant interstellar molecules, such as H2 and CN have been detected from their visible or ultraviolet spectrum. ... The vast majority of interstellar molecules have been observed using radiotelescopes. These operate much like a standard optical telescope, imaging the electromagnetic radiation...
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www.brookscole.com/chemistry_d/templates/student_resour...
www.brookscole.com/chemistry_d/templates/student_resources/shared_resources/act/astrochem/astro2.html
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The large majority of the species thus synthesized were found unreactive towards H2 and CO, the most abundant interstellar molecules. The P containing ions could also dissociatively recombine with electrons to produce their corresponding neutrals.
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www.sc.ehu.es/powgep99/dcytp/teoricos/research/phos.htm
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Interstellar Molecules; by Gillian Knapp; Wenyou look into the sky at night , you see our galaxy as a band of light cros sed by ... A typical interstellar molecule, one of the most abundant, is carbon mon oxide, which consists of an atom of carbon and one of oxygen, bonded together by a cloud of electrons aro und;
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calteches.library.caltech.edu/573/02/interstellar.pdf
calteches.library.caltech.edu/573/02/interstellar.pdf
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