Far infrared spectroscopy of (O III) in M82

Details Far infrared spectroscopy of (O III) in M82 Far infrared spectroscopy of (O III) in M82

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984abas.symp..298d&link_type=abstract

In its Airborne Astron. Symp. p 298-299 (SEE N85-17848 08-89)

Astronomy and Astrophysics

Astronomy

Emission Spectra, Galaxies, Infrared Astronomy, Infrared Spectroscopy, Mass Distribution, Airborne Equipment, C-135 Aircraft, Electron Density (Concentration), Far Infrared Radiation, Gas Ionization, Oxygen

Scientific paper

Emission lines at 52 and 88 micron from O III in the galaxy M82 were observed with the cooled grating spectrometer aboard the Kuiper Airborne Observatory. Raw spectra were corrected for telluric water vapor absorption, instrument response function, and relative detector response by ratioing to a spectrum of Saturn or Mars taken on the same flight. An average electron density Pn regions where oxygen is doubly ionized was derived. The electron density calculated for M 82 is significantly lower than those found in the galaxy using the same method. Results suggest that observations of the galaxy made from a great distance would yield a higher electron density than observed in M82.

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