Evidence from sub-millimetre observations for thermal dust emission in NGC4151

Details Evidence from sub-millimetre observations for thermal dust emission in NGC4151 Evidence from sub-millimetre observations for thermal dust emission in NGC4151

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.336..749e&link_type=abstract

Nature (ISSN 0028-0836), vol. 336, Dec. 29, 1988, p. 749-751. Research supported by NASA and NSF.

Computer Science

25

Cosmic Dust, Seyfert Galaxies, Submillimeter Waves, Thermal Emission, Bolometers, Infrared Spectra, Spectral Energy Distribution, Synchrotron Radiation

Scientific paper

The authors report observations at 438 μm wavelength of the Seyfert 1 galaxy NGC 4151 using the UKT14 bolometer on the James Clerk Maxwell Telescope. They find a 5 σ upper limit of 200 mJy in an 11arcsec aperture. Comparison with an earlier measurement at 155 μm indicates that at least half of the 155 μm flux is due to thermal dust emission. The remainder may be from a synchrotron source which becomes self-absorbed at wavelengths of less than 80 μm.

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