dorsal/arxiv
View SchemaA collision-induced satellite in the Lyman Beta profile due to H-H collisions
| Authors | N. F. Allard, J. Kielkopf, I. Drira, P. Schmelcher |
|---|---|
| Categories | |
| ArXiv ID | physics/0006028 |
| URL | https://arxiv.org/abs/physics/0006028 |
| DOI | 10.1007/s100530070021 |
| Journal | European Physical Journal D 12, 263 (2000) |
Abstract
We present a theoretical profile of the Lyman Beta line of atomic hydrogen perturbed by collisions with neutral hydrogen atoms and protons. We use a general unified theory in which the electric dipole moment varies during a collision. A collision-induced satellite appears on Lyman Beta, correlated to the B''\barB 1Sigma+u - X 1Sigma+g asymptotically forbidden transition of H_2. As a consequence, the appearance of the line wing between Lyman Alpha and Lyman Beta is shown to be sensitive to the relative abundance of hydrogen ions and neutral atoms, and thereby to provide a temperature diagnostic for stellar atmospheres and laboratory plasmas.
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"abstract": "We present a theoretical profile of the Lyman Beta line of atomic hydrogen\nperturbed by collisions with neutral hydrogen atoms and protons. We use a\ngeneral unified theory in which the electric dipole moment varies during a\ncollision. A collision-induced satellite appears on Lyman Beta, correlated to\nthe B\u0027\u0027\\barB 1Sigma+u - X 1Sigma+g asymptotically forbidden transition of H_2.\nAs a consequence, the appearance of the line wing between Lyman Alpha and Lyman\nBeta is shown to be sensitive to the relative abundance of hydrogen ions and\nneutral atoms, and thereby to provide a temperature diagnostic for stellar\natmospheres and laboratory plasmas.",
"arxiv_id": "physics/0006028",
"authors": [
"N. F. Allard",
"J. Kielkopf",
"I. Drira",
"P. Schmelcher"
],
"categories": [
"physics.atom-ph",
"physics.ao-ph",
"physics.chem-ph",
"physics.plasm-ph"
],
"doi": "10.1007/s100530070021",
"journal_ref": "European Physical Journal D 12, 263 (2000)",
"title": "A collision-induced satellite in the Lyman Beta profile due to H-H collisions",
"url": "https://arxiv.org/abs/physics/0006028"
},
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