Gas and dust in Comet 2P/Encke observed in the visual and submillimeter wavelength ranges
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Gas and dust in Comet 2P/Encke observed in the visual and submillimeter wavelength ranges
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| Creator |
Jockers, K.
Szutowicz, S. Villanueva, G. Kiselev, N. Bonev, T. Hartogh, P. |
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| Subject |
MS5: Dynamics and Physics of Solar System Bodies
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| Description |
In November 2003 Comet 2P/Encke was observed simultaneously with the 10-m Heinrich–Hertz Submillimeter Telescope on Mount Graham, Arizona, USA, and the 2-m optical telescope on Mount Rozhen, Bulgaria. Simultaneous radio observations of the 4–3 and 3–2 rotational transitions of HCN and the 0–0 transition of the CN violet band system provide a three-dimensional view on the comet. The observations are consistent with outgassing from the source region I with location and pole position of Comet Encke taken from [14]. The outflow speed is 1.2 km. There is some evidence for another possible parent for CN besides HCN. The visual dust coma of Comet Encke is nearly spherical with a diameter of about 1000 km and a slight extension into Comet Encke’s fan. The polarization of the observed NH₂ transition at 662 nm is 7% at a phase angle of 94.5°, close to the value for two-atomic molecules. At this phase angle and a wavelength of 642 nm the polarization of Comet Encke’s dust is greater than 30%, i.e., exceeds the value for so-called dusty comets.
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| Date |
2015-04-03T19:43:40Z
2015-04-03T19:43:40Z 2005 |
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| Type |
Article
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| Identifier |
Gas and dust in Comet 2P/Encke observed in the visual and submillimeter wavelength ranges / K. Jockers, S. Szutowicz, G. Villanueva, N. Kiselev, T. Bonev, P. Hartogh // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 458-464. — Бібліогр.: 18 назв. — англ.
0233-7665 http://dspace.nbuv.gov.ua/handle/123456789/79699 |
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| Language |
en
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| Relation |
Кинематика и физика небесных тел
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| Publisher |
Головна астрономічна обсерваторія НАН України
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