Far-IR solar emission lines form high N states of hydrogen

Details Far-IR solar emission lines form high N states of hydrogen Far-IR solar emission lines form high N states of hydrogen

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...157..353b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 157, no. 2, March 1986, p. 353-356.

Astronomy and Astrophysics

Astrophysics

16

Emission Spectra, Far Infrared Radiation, H Lines, Infrared Spectra, Solar Spectra, Electron Transitions, Hydrogen Recombinations, Radiative Recombination, Thermodynamic Equilibrium

Scientific paper

Emission lines arising from high n transitions (16-15 and 14-13) in neutral hydrogen have been detected in high resolution solar spectra obtained with a Michelson interferometer on a balloon-borne telescope. Absolute intensities are close to the predicted values of Hoang-Binh (1982) when pressure-broadening is included, with observed line intensities of up to 10 percent above the solar continuum. Equivalent emission from heavier elements, such as MgI and SiI, which is dominant in the near infrared at lower n values, may be present but is significantly weaker than that from HI transitions.

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