Spiral dust-jet structures of Comet P/Swift-Tuttle 1992t

Details Spiral dust-jet structures of Comet P/Swift-Tuttle 1992t Spiral dust-jet structures of Comet P/Swift-Tuttle 1992t

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasj...45l..33y&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 45, no. 2, p. L33-L37.

Astronomy and Astrophysics

Astronomy

12

Angular Velocity, Comet Nuclei, Cosmic Dust, Radio Jets (Astronomy), Charge Coupled Devices, Schmidt Telescopes

Scientific paper

In this Letter we present the first results from CCD observations of the periodic Comet P/Swift-Tuttle 1992t, taken with the Kiso 105-cm Schmidt telescope. The comet shows prominent activity, of which we focus on jet phenomena. Several dust-jets exhibit spiral structures which originate from the nucleus. The rotation period of the nucleus was derived to be 2.89 +/- 0.01 d, which is consistent with the period estimated during its last passage in 1862. One of the observed jets appears to be ejected from the same active region as a jet observed during the former passage.

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