The radio continuum spectrum of partially ionized globules

Details The radio continuum spectrum of partially ionized globules The radio continuum spectrum of partially ionized globules

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246..551p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 2, June 1991, p. 551-558. Research supported by CICYT.

Astronomy and Astrophysics

Astronomy

15

Continuous Spectra, Electron Density Profiles, H Ii Regions, Interstellar Matter, Orion Nebula, Radio Astronomy, Astronomical Models, Ionized Gases, Line Of Sight, Radiative Transfer, Very Large Array (Vla)

Scientific paper

The radio continuum emission from partially ionized globules (PIGs) is reanalyzed using a more realistic electron density profile for the outflowing ionized gas. It is shown that a characteristic spectrum is formed whose shape does not depend on the parameters of the condensation or on its orientation with respect to the observer, but only on the velocity law of expansion. This characteristic spectrum fits well the radio continuum fluxes of the PIGs in Orion. Some discrepancies concerning the detailed comparison of the radio observations, the optical observations, and the model are also discussed.

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