Photoelectron imaging of interstellar medium anions
نویسندگان
چکیده
منابع مشابه
Photoelectron imaging of tetrahydrofuran cluster anions
Anionic tetrahydrofuran clusters THF n − 1 n 100 are studied with photoelectron imaging as gas-phase precursors for electrons solvated in THF. Photoelectron spectra of clusters up to n=5 show two peaks, one of which is attributed to a solvated open chain radical anion and the other to the closed THF ring. At n=6, the spectra change shape abruptly, which become more characteristic of THF n − clu...
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Multiply charged anions possess strong intramolecular Coulomb repulsion (ICR), which has been shown to dictate photoelectron angular distributions (PADs) using photoelectron imaging. Here we report the effects of photoelectron kinetic energies on the PADs of multiply charged anions. Photoelectron images on a series of dicarboxylate dianions, (-)O(2)C(CH(2))(n)CO(2) (-) (D(n) (2-), n=3-11) have ...
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Refraction of pulsar radiation by electron density irregularities in the interstellar medium sometimes produces multiple imaging of pulsars, which can lead to periodic oscillations of intensity in pulsar dynamic spectra records. Such events can be used as tools to resolve the emission regions in pulsar magnetospheres. Here we describe results from the recent observation of a double imaging even...
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The possibility of attaching near-threshold electrons to N-terminated carbon chains, like those observed in the outer envelopes of carbon-rich stars, is examined via accurate quantum chemistry orbital structures evaluation and quantum scattering analysis of the corresponding extra-electron wavefunctions at meV energies. It is shown that the differences in the signs and sizes of the permanent di...
متن کاملPhotoelectron spectroscopy of nickel-benzene cluster anions.
(Nickel)(n)(benzene)(m) (-) cluster anions were studied by both mass spectrometry and anion photoelectron spectroscopy. Only Ni(n)(Bz)(m) (-) species for which n > or =m were observed in the mass spectra. No single-nickel Ni(1)(Bz)(m) (-) species were seen. Adiabatic electron affinities, vertical detachment energies, and second transition energies were determined for (n,m)=(2,1), (2,2), (3,1), ...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2015
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/635/11/112115