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Dust measurements i...
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Rotundi, Alessandra
(author)
Dust measurements in the coma of comet 67P/Churyumov-Gerasimenko inbound to the Sun
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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American Association for the Advancement of Science (AAAS),2015
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-247154
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-247154URI
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https://doi.org/10.1126/science.aaa3905DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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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.
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Sierks, Holger
(author)
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Della Corte, Vincenzo
(author)
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Fulle, Marco
(author)
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Gutierrez, Pedro J.
(author)
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Lara, Luisa
(author)
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Barbieri, Cesare
(author)
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Lamy, Philippe L.
(author)
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Rodrigo, Rafael
(author)
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Koschny, Detlef
(author)
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Rickman, HansUppsala universitet,Teoretisk astrofysik(Swepub:uu)hansrick
(author)
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Keller, Horst Uwe
(author)
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Lopez-Moreno, Jose J.
(author)
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Accolla, Mario
(author)
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Agarwal, Jessica
(author)
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A'Hearn, Michael F.
(author)
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Altobelli, Nicolas
(author)
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Angrilli, Francesco
(author)
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Barucci, M. Antonietta
(author)
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Bertaux, Jean-Loup
(author)
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Bertini, Ivano
(author)
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Bodewits, Dennis
(author)
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Bussoletti, Ezio
(author)
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Colangeli, Luigi
(author)
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Cosi, Massimo
(author)
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Cremonese, Gabriele
(author)
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Crifo, Jean-Francois
(author)
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Da Deppo, Vania
(author)
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Davidsson, BjörnUppsala universitet,Teoretisk astrofysik(Swepub:uu)bjoda312
(author)
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Debei, Stefano
(author)
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De Cecco, Mariolino
(author)
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Esposito, Francesca
(author)
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Ferrari, Marco
(author)
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Fornasier, Sonia
(author)
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Giovane, Frank
(author)
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Gustafson, Bo
(author)
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Green, Simon F.
(author)
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Groussin, Olivier
(author)
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Gruen, Eberhard
(author)
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Guettler, Carsten
(author)
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Herranz, Miguel L.
(author)
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Hviid, Stubbe F.
(author)
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Ip, Wing
(author)
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Ivanovski, Stavro
(author)
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Jernimo, Jose M.
(author)
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Jorda, Laurent
(author)
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Knollenberg, Joerg
(author)
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Kramm, Rainer
(author)
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Kuehrt, Ekkehard
(author)
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Kueppers, Michael
(author)
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Lazzarin, Monica
(author)
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Leese, Mark R.
(author)
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Lopez-Jimenez, Antonio C.
(author)
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Lucarelli, Francesca
(author)
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Lowry, Stephen C.
(author)
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Marzari, Francesco
(author)
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Epifani, Elena Mazzotta
(author)
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McDonnell, J. Anthony M.
(author)
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Mennella, Vito
(author)
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Michalik, Harald
(author)
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Molina, Antonio
(author)
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Morales, Rafael
(author)
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Moreno, Fernando
(author)
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Mottola, Stefano
(author)
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Naletto, Giampiero
(author)
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Oklay, Nilda
(author)
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Ortiz, Jose L.
(author)
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Palomba, Ernesto
(author)
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Palumbo, Pasquale
(author)
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Perrin, Jean-Marie
(author)
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Rodriguez, Julio
(author)
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Sabau, Lola
(author)
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Snodgrass, Colin
(author)
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Sordini, Roberto
(author)
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Thomas, Nicolas
(author)
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Tubiana, Cecilia
(author)
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Vincent, Jean-Baptiste
(author)
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Weissman, Paul
(author)
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Wenzel, Klaus-Peter
(author)
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Zakharov, Vladimir
(author)
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Zarnecki, John C.
(author)
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Uppsala universitetTeoretisk astrofysik
(creator_code:org_t)
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In:Science: American Association for the Advancement of Science (AAAS)347:62200036-80751095-9203
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Rotundi, Alessan ...
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Sierks, Holger
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Della Corte, Vin ...
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Fulle, Marco
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Gutierrez, Pedro ...
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Lara, Luisa
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Barbieri, Cesare
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Lamy, Philippe L ...
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Rodrigo, Rafael
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Koschny, Detlef
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Rickman, Hans
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Keller, Horst Uw ...
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Lopez-Moreno, Jo ...
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Accolla, Mario
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Agarwal, Jessica
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A'Hearn, Michael ...
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Altobelli, Nicol ...
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Angrilli, France ...
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Barucci, M. Anto ...
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Bertaux, Jean-Lo ...
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Bertini, Ivano
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Bodewits, Dennis
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Bussoletti, Ezio
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Colangeli, Luigi
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Cosi, Massimo
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Cremonese, Gabri ...
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Crifo, Jean-Fran ...
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Da Deppo, Vania
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Davidsson, Björn
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Debei, Stefano
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De Cecco, Mariol ...
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Esposito, France ...
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Ferrari, Marco
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Fornasier, Sonia
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Giovane, Frank
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Gustafson, Bo
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Green, Simon F.
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Groussin, Olivie ...
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Gruen, Eberhard
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Guettler, Carste ...
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Herranz, Miguel ...
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Hviid, Stubbe F.
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Ip, Wing
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Ivanovski, Stavr ...
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Jernimo, Jose M.
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Jorda, Laurent
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Knollenberg, Joe ...
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Kramm, Rainer
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Kuehrt, Ekkehard
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Kueppers, Michae ...
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Lazzarin, Monica
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Leese, Mark R.
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Lopez-Jimenez, A ...
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Lucarelli, Franc ...
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Lowry, Stephen C ...
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Marzari, Frances ...
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Epifani, Elena M ...
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McDonnell, J. An ...
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Mennella, Vito
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Michalik, Harald
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Molina, Antonio
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Morales, Rafael
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Moreno, Fernando
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Mottola, Stefano
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Naletto, Giampie ...
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Oklay, Nilda
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Ortiz, Jose L.
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Palomba, Ernesto
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Palumbo, Pasqual ...
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Perrin, Jean-Mar ...
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Rodriguez, Julio
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Sabau, Lola
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Snodgrass, Colin
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Sordini, Roberto
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Thomas, Nicolas
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Tubiana, Cecilia
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Vincent, Jean-Ba ...
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Weissman, Paul
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Wenzel, Klaus-Pe ...
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Zakharov, Vladim ...
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Zarnecki, John C ...
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Uppsala University