Radio continuum observations of comet Halley

Details Radio continuum observations of comet Halley Radio continuum observations of comet Halley

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...164..227a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 164, no. 1, Aug. 1986, p. 227-230.

Astronomy and Astrophysics

Astronomy

15

Continuous Spectra, Halley'S Comet, Radio Astronomy, Astronomical Models, Iras-Araki-Alcock Comet, Millimeter Waves, Radio Stars

Scientific paper

Radio continuum observations of comets Hartley-IRAS, Crommelin, Giacobini-Zinner, Hartley-Good, and Halley are reported. All measurements in the cm-wavelength-range from Effelsberg resulted in upper limits. Additionally comet Halley was observed with the 30 m radio telescope on Pico Veleta around the perigee in 1985. For each of the ten days no significant signal was observed at 86 GHz and at 226 GHz, putting a severe limit on any transient emission. combining all data, a positive signal of 5.9 + or - 1.4 (mJy) and 52.0 + or - 15.1 (mJy) at 86 and 226 GHz is derived, respectively. This is consistent with black body radiation. From the analysis of the noise as function of integration time and from trial observation of weak radio stars it is concluded that the detection of comet Halley is real.

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