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Physics of our days


30 years of the Vega mission: Comparison of some properties of 1P/Halley and 67P/Churyumov—Gerasimenko comets


Space Research Institute, Russian Academy of Sciences, Profsoyuznaya str. 84/32, Moscow, 117997, Russian Federation

On March 6 and 9, 1986, for the first time in the history of science, the Russian Vega-1 and Vega-2 spacecraft approached and closely passed the nucleus of Halley's comet (1P/Halley). A few days later, on March 14, 1986, the same was done by the European Space Agency's (ESA) Giotto spacecraft. These missions, together with the Japanese Suisei (JAXA) made a successful start in the spacecraft exploration of cometary nuclei. Subsequent missions to other comets were aimed at directly studying cometary bodies carrying signs of Solar system formation. The Rosetta spacecraft, inserted into a low orbit around the nucleus of the 67P/Churyumov—Gerasimenko comet, performed its complex measurements from 2014 to September 2016. In this review, some of the data from these missions are compared. The review draws on the proceedings of the Vega 30th anniversary conference held in the Space Research Institute (IKI) of the Russian Academy of Science in March 2016 and is not meant to be exhaustive in describing the mission results and problems in the physics of comets.

Fulltext pdf (1.4 MB)
Fulltext is also available at DOI: 10.3367/UFNe.2016.07.037867
Keywords: comets, cometary physics, space investigations, comparison of comets
PACS: 01.65.+g, 96.25.−f, 96.30.Cw (all)
DOI: 10.3367/UFNe.2016.07.037867
URL: https://ufn.ru/en/articles/2017/3/d/
000405323300004
2-s2.0-85021170790
2017PhyU...60..290K
Citation: Ksanfomality L V "30 years of the Vega mission: Comparison of some properties of 1P/Halley and 67P/Churyumov—Gerasimenko comets" Phys. Usp. 60 290–304 (2017)
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Received: 3rd, April 2016, revised: 9th, July 2016, 13th, July 2016

Оригинал: Ксанфомалити Л В «К 30-летию миссии Вега: сравнение некоторых свойств комет 1Р/Галлея и 67Р/Чурюмова—Герасименко» УФН 187 311–326 (2017); DOI: 10.3367/UFNr.2016.07.037867

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