Water ions, dust and CN in comet 46P/Wirtanen

Details Water ions, dust and CN in comet 46P/Wirtanen Water ions, dust and CN in comet 46P/Wirtanen

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...335l..56j&link_type=abstract

Astronomy and Astrophysics, v.335, p.L56-L59 (1998)

Astronomy and Astrophysics

Astrophysics

14

Plasma, Gas, Dust

Scientific paper

Comet 46P/Wirtanen was observed at Pik Terskol (Northern Caucasus) with the 2m-Zeiss-Telescope of the International Centre for Astronomical and Medico-Ecological Investigations, Kiev, on March 10 and 11, 1997. The two-channel focal reducer of the MPAe was used. It allows observations of comets simultaneously in a red and a blue filter passband. The comet was observed with interference filters centered at 615 nm (H_2O(+) ) and 388 nm (CN) and with a wide-band red continuum filter. From the March 11 data we have derived an H_2O(+) image and an upper limit of the H_2O(+) production rate, the CN production rate and the ``Afrho '' value, indicative of the dust production. The gas to dust ratio is about 2-3 times higher than in comet 1P/Halley. Based on observations obtained at the Terskol Observatory of the Centre for Astronomical, and Medico-Ecological Investigations, Kiev, Ukraine

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