Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling Emission of Heavy Energetic Neutral Atoms from the Heliosphere   Observations of energetic neutral atoms (ENAs) are a fruitful tool for remote
diagnosis of the plasma in the heliosphere and its vicinity. So far,
instruments detecting ENAs from the heliosphere were configured for
observations of hydrogen atoms. Here, we estimate emissions of ENAs of the
heavy chemical elements helium, oxygen, nitrogen, and neon. A large portion of
the heliospheric ENAs is created in the inner heliosheath from neutralized
interstellar pick-up ions (PUIs). We modeled this process and calculated
full-sky intensities of ENAs for energies 0.2-130 keV/nuc. We found that the
largest fluxes among considered species are expected for helium, smaller for
oxygen and nitrogen, and smallest for neon. The obtained intensities are
50-10^6 times smaller than the hydrogen ENA intensities observed by IBEX. The
detection of heavy ENAs will be possible if a future ENA detector is equipped
with the capability to measure the masses of observed atoms. Because of
different reaction cross-sections among the different species, observations of
heavy ENAs can allow for a better understanding of global structure of the
heliosphere as well as the transport and energization of PUIs in the
heliosphere.

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The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: math
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an