The possibility of transition radiation in planetary nebulae

Details The possibility of transition radiation in planetary nebulae The possibility of transition radiation in planetary nebulae

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.190..219g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 190, no. 2, April 1992, p. 219-232.

Astronomy and Astrophysics

Astrophysics

1

Planetary Nebulae, Stellar Radiation, Stellar Spectra, Emission Spectra, Forbidden Bands, Radio Emission, Relativistic Electron Beams

Scientific paper

Earlier spectrophotometric observations of the planetary nebula IC 4997 have revealed a strong discordance between the variations of the intensities of the forbidden lines 4363 O III and N1 + N2 O III, which take place not in unison, as predicted by the classical theory. This paper examines the origin of this 'paradox of nebula IC 4997'. A possibility is suggested of a spontaneous appearance of relativistic electrons in the nebula and the generation of the so-called transition radiation as a result of electrodynamic interaction of these electrons with dust particles in the nebula.

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