Cross sections for production of H(2p, 2s, 1s) by electron collisional dissociation of H2

Journal Article · Mon Apr 01 00:00:00 EST 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/169904· OSTI ID:5469934

Ajello, J M; James, G K; Shemansky, D E ^[1]

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1. JPL, Pasadena, CA (USA) Arizona, University, Tucson (USA)

The excitation function of H Ly-alpha from the astrophysically important dissociation of electron-excited H2 over the range 10-700 eV has been measured. The analysis predicts the cross section to energies higher than the present experimental limit, and it is found that the predicted shape is in close agreement with measured results. At 6 eV the cross section is dominated by the electric dipole first Born component, while at 100 eV the electric dipole component constitutes 73 percent of the total H(2p) cross section. The cross sections of the H(2s) and H(1s) components are calculated. 36 refs.

• OSTI ID: 5469934
• Journal Information: Astrophysical Journal; (United States), Vol. 371; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ASTROPHYSICS
SPECTROSCOPY
ELECTRON-MOLECULE COLLISIONS
DISSOCIATION
HYDROGEN
CROSS SECTIONS
ENERGY LEVELS
FRANCK-CONDON PRINCIPLE
LYMAN LINES
RYDBERG STATES
SPECTRA
COLLISIONS
ELECTRON COLLISIONS
ELEMENTS
EXCITED STATES
MOLECULE COLLISIONS
NONMETALS
640100* - Astrophysics & Cosmology
640304 - Atomic
Molecular & Chemical Physics- Collision Phenomena