SPIRAL DUST-JET STRUCTURES OF COMET-P SWIFT-TUTTLE 1992T/

Authors
YOSHIDA S AOKI T SOYANO T TARUSAWA K VANDRIEL W HAMABE M ICHIKAWA T WATANABE J WAKAMATSU K
Citation
S. Yoshida et al., SPIRAL DUST-JET STRUCTURES OF COMET-P SWIFT-TUTTLE 1992T/, Publications of the Astronomical Society of Japan, 45(2), 1993, pp. 33-37
Citations number
8
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of Japan → ACNP
ISSN journal
00046264
Volume
45
Issue
2
Year of publication
1993
Pages
33 - 37
Database
ISI
SICI code
0004-6264(1993)45:2<33:SDSOCS>2.0.ZU;2-K
Abstract
In this Letter we present the first results from CCD observations of t he periodic comet P/Swift-Tuttle 1992t, taken with the Kiso 105-cm Sch midt telescope. The comet shows prominent activity, of which we focus on jet phenomena. Several dust-jets exhibit spiral structures which or iginate from the nucleus. The rotation period of the nucleus was deriv ed to be 2.89 +/- 0.01 d, which is consistent with the period estimate d 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 f ormer passage.