The dust content of the planetary nebula IC 3568

Details The dust content of the planetary nebula IC 3568 The dust content of the planetary nebula IC 3568

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283..687c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. 687-693.

Astronomy and Astrophysics

Astronomy

12

Cosmic Dust, Infrared Astronomy, Interstellar Matter, Planetary Nebulae, Astronomical Photometry, Infrared Photometry, Luminosity, Thermal Emission

Scientific paper

Far-infrared photometry of IC 3568 shows a substantial excess that is not suggested by 10 μm data. A recently constructed model for the nebula permits the temperature profile for dust to be computed. The calculated infrared spectrum reproduces the observations well and requires that the grains have absorption properties like those of amorphous carbon. The dust coexists in the ionized gas but is heated directly by stellar radiation; most of the Lyα radiation escapes from the nebula.

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