Missing link found in space

Article Abstract:

The H(super + sub 3) ion has been detected in space, and it is considered to be a driving force behind chemistry in interstellar molecular clouds. It initiates the cold gas-phase reactions that determine gas cooling and gas collapse to form stars. The H(super + sub 3) ion is produced after a hydrogen molecule is ionized by cosmic rays to form molecular ion H(super + sub 2). This molecule further reacts with molecular hydrogen to produce atomic hydrogen and H(super + sub 3). The ion may also be used as a probe for the rate of ionization of interstellar molecules.

Analysis, Molecular structure, Ions, Hydrogen

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Evidence against stellar chromospheric origin of Galactic cosmic rays

Article Abstract:

Interstellar space contains a gas of relativistic ions and the Galactic cosmic rays. The energetic particles link interstellar gas to ambient magnetic fields through ionization of molecules and atoms. A model predicts an overabundance of easily ionized elements, but another model shows that easily ionized lead is not abundant in the Galactic cosmic rays. The measurements are more consistent with a model where the nuclei originate in interstellar gas, or where cosmic rays contain an admixture of exotic synthesized component.

Cosmic rays, Interstellar gas

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