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Dust measurements in the coma of comet 67P/Churyumov-Gerasimenko inbound to the Sun

Rotundi, Alessandra (author)
Sierks, Holger (author)
Della Corte, Vincenzo (author)
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Fulle, Marco (author)
Gutierrez, Pedro J. (author)
Lara, Luisa (author)
Barbieri, Cesare (author)
Lamy, Philippe L. (author)
Rodrigo, Rafael (author)
Koschny, Detlef (author)
Rickman, Hans (author)
Uppsala universitet,Teoretisk astrofysik
Keller, Horst Uwe (author)
Lopez-Moreno, Jose J. (author)
Accolla, Mario (author)
Agarwal, Jessica (author)
A'Hearn, Michael F. (author)
Altobelli, Nicolas (author)
Angrilli, Francesco (author)
Barucci, M. Antonietta (author)
Bertaux, Jean-Loup (author)
Bertini, Ivano (author)
Bodewits, Dennis (author)
Bussoletti, Ezio (author)
Colangeli, Luigi (author)
Cosi, Massimo (author)
Cremonese, Gabriele (author)
Crifo, Jean-Francois (author)
Da Deppo, Vania (author)
Davidsson, Björn (author)
Uppsala universitet,Teoretisk astrofysik
Debei, Stefano (author)
De Cecco, Mariolino (author)
Esposito, Francesca (author)
Ferrari, Marco (author)
Fornasier, Sonia (author)
Giovane, Frank (author)
Gustafson, Bo (author)
Green, Simon F. (author)
Groussin, Olivier (author)
Gruen, Eberhard (author)
Guettler, Carsten (author)
Herranz, Miguel L. (author)
Hviid, Stubbe F. (author)
Ip, Wing (author)
Ivanovski, Stavro (author)
Jernimo, Jose M. (author)
Jorda, Laurent (author)
Knollenberg, Joerg (author)
Kramm, Rainer (author)
Kuehrt, Ekkehard (author)
Kueppers, Michael (author)
Lazzarin, Monica (author)
Leese, Mark R. (author)
Lopez-Jimenez, Antonio C. (author)
Lucarelli, Francesca (author)
Lowry, Stephen C. (author)
Marzari, Francesco (author)
Epifani, Elena Mazzotta (author)
McDonnell, J. Anthony M. (author)
Mennella, Vito (author)
Michalik, Harald (author)
Molina, Antonio (author)
Morales, Rafael (author)
Moreno, Fernando (author)
Mottola, Stefano (author)
Naletto, Giampiero (author)
Oklay, Nilda (author)
Ortiz, Jose L. (author)
Palomba, Ernesto (author)
Palumbo, Pasquale (author)
Perrin, Jean-Marie (author)
Rodriguez, Julio (author)
Sabau, Lola (author)
Snodgrass, Colin (author)
Sordini, Roberto (author)
Thomas, Nicolas (author)
Tubiana, Cecilia (author)
Vincent, Jean-Baptiste (author)
Weissman, Paul (author)
Wenzel, Klaus-Peter (author)
Zakharov, Vladimir (author)
Zarnecki, John C. (author)
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 (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2015
2015
English.
In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 347:6220
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Critical measurements for understanding accretion and the dust/gas ratio in the solar nebula, where planets were forming 4.5 billion years ago, are being obtained by the GIADA (Grain Impact Analyser and Dust Accumulator) experiment on the European Space Agency's Rosetta spacecraft orbiting comet 67P/Churyumov-Gerasimenko. Between 3.6 and 3.4 astronomical units inbound, GIADA and OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) detected 35 outflowing grains of mass 10(-10) to 10(-7) kilograms, and 48 grains of mass 10(-5) to 10(-2) kilograms, respectively. Combined with gas data from the MIRO (Microwave Instrument for the Rosetta Orbiter) and ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) instruments, we find a dust/gas mass ratio of 4 +/- 2 averaged over the sunlit nucleus surface. A cloud of larger grains also encircles the nucleus in bound orbits from the previous perihelion. The largest orbiting clumps are meter-sized, confirming the dust/gas ratio of 3 inferred at perihelion from models of dust comae and trails.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

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By the author/editor
Rotundi, Alessan ...
Sierks, Holger
Della Corte, Vin ...
Fulle, Marco
Gutierrez, Pedro ...
Lara, Luisa
show more...
Barbieri, Cesare
Lamy, Philippe L ...
Rodrigo, Rafael
Koschny, Detlef
Rickman, Hans
Keller, Horst Uw ...
Lopez-Moreno, Jo ...
Accolla, Mario
Agarwal, Jessica
A'Hearn, Michael ...
Altobelli, Nicol ...
Angrilli, France ...
Barucci, M. Anto ...
Bertaux, Jean-Lo ...
Bertini, Ivano
Bodewits, Dennis
Bussoletti, Ezio
Colangeli, Luigi
Cosi, Massimo
Cremonese, Gabri ...
Crifo, Jean-Fran ...
Da Deppo, Vania
Davidsson, Björn
Debei, Stefano
De Cecco, Mariol ...
Esposito, France ...
Ferrari, Marco
Fornasier, Sonia
Giovane, Frank
Gustafson, Bo
Green, Simon F.
Groussin, Olivie ...
Gruen, Eberhard
Guettler, Carste ...
Herranz, Miguel ...
Hviid, Stubbe F.
Ip, Wing
Ivanovski, Stavr ...
Jernimo, Jose M.
Jorda, Laurent
Knollenberg, Joe ...
Kramm, Rainer
Kuehrt, Ekkehard
Kueppers, Michae ...
Lazzarin, Monica
Leese, Mark R.
Lopez-Jimenez, A ...
Lucarelli, Franc ...
Lowry, Stephen C ...
Marzari, Frances ...
Epifani, Elena M ...
McDonnell, J. An ...
Mennella, Vito
Michalik, Harald
Molina, Antonio
Morales, Rafael
Moreno, Fernando
Mottola, Stefano
Naletto, Giampie ...
Oklay, Nilda
Ortiz, Jose L.
Palomba, Ernesto
Palumbo, Pasqual ...
Perrin, Jean-Mar ...
Rodriguez, Julio
Sabau, Lola
Snodgrass, Colin
Sordini, Roberto
Thomas, Nicolas
Tubiana, Cecilia
Vincent, Jean-Ba ...
Weissman, Paul
Wenzel, Klaus-Pe ...
Zakharov, Vladim ...
Zarnecki, John C ...
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About the subject
NATURAL SCIENCES
NATURAL SCIENCES
and Physical Science ...
Articles in the publication
Science
By the university
Uppsala University

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