Radio observations of Comet 1983 D

Details Radio observations of Comet 1983 D Radio observations of Comet 1983 D

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...125l..19a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 125, no. 2, Sept. 1983, p. L19-L22.

Astronomy and Astrophysics

Astronomy

53

Astronomical Spectroscopy, Cometary Atmospheres, Iras-Araki-Alcock Comet, Radio Astronomy, Ammonia, Comet Nuclei, Continuous Spectra, Emission Spectra, Line Spectra, Point Sources, Radiant Flux Density, Water, Comets, Iras-Araki-Alcock, Radio Observations, Wavelengths, Emissions, Ammonia, Water, Production Rates, Gases, Comet Nuclei, Procedure

Scientific paper

Radio continuum and spectral line observations of Comet 1983d (IRAS-Araki-Alcock) have been made using the Effelsberg 100-m telescope at a wavelength of 1.3 cm. A continuum point source of strength 9 mJy was detected at the time of perigee (May 11), and this emission persisted throughout the next day. The authors have probably detected both the NH3 (3,3) and H2O (616-523) lines from the comet. The derived ammonia production rate of 6×1026 s-1 suggests that NH3 forms roughly six percent of the gases subliming from the cometary nucleus.

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