Rosetta arrives at Comet 67P/Churyumov-Gerasimenko
نویسندگان
چکیده
منابع مشابه
Ground-based monitoring of comet 67P/Churyumov–Gerasimenko gas activity throughout the Rosetta mission
Simultaneously to the ESA Rosetta mission, a world-wide ground-based campaign provided measurements of the large scale activity of comet 67P/Churyumov–Gerasimenko through measurement of optically active gas species and imaging of the overall dust coma. We present more than 2 yr of observations performed with the FORS2 low-resolution spectrograph at the VLT, TRAPPIST and ACAM at the WHT. We focu...
متن کاملKelvin-Helmholtz instabilities at the magnetic cavity boundary of comet 67P/Churyumov-Gerasimenko
[1] We investigate the plasma environment of comet 67P/Churyumov-Gerasimenko, the target of the European Space Agency’s Rosetta mission. Rosetta will rendezvous with the comet in 2014 at almost 3.5 AU and follow it all the way to and past perihelion at 1.3 AU. During its journey towards the inner solar system the comet’s environment will significantly change. The interaction of the solar wind w...
متن کاملThe presence of clathrates in comet 67P/Churyumov-Gerasimenko.
Cometary nuclei are considered to most closely reflect the composition of the building blocks of our solar system. As such, comets carry important information about the prevalent conditions in the solar nebula before and after planet formation. Recent measurements of the time variation of major and minor volatile species in the coma of the Jupiter family comet 67P/Churyumov-Gerasimenko (67P) by...
متن کاملMass-loading, pile-up, and mirror-mode waves at comet 67P/Churyumov-Gerasimenko
The data from all Rosetta plasma consortium instruments and from the ROSINA COPS instrument are used to study the interaction of the solar wind with the outgassing cometary nucleus of 67P/Churyumov-Gerasimenko. During 6 and 7 June 2015, the interaction was first dominated by an increase in the solar wind dynamic pressure, caused by a higher solar wind ion density. This pressure compressed the d...
متن کاملComet 67P/Churyumov-Gerasimenko preserved the pebbles that formed planetesimals
Solar System formation models predict that the building-blocks of planetesimals were mmto cm-sized pebbles, aggregates of ices and non-volatile materials, consistent with the compact particles ejected by comet 67P/Churyumov-Gerasimenko (67P hereafter) and detected by GIADA (Grain Impact Analyzer and Dust Accumulator) on-board the Rosetta spacecraft. Planetesimals were formed by the gentle gravi...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 2014
ISSN: 1366-8781,1468-4004
DOI: 10.1093/astrogeo/atu211