Cassini Imaging Science: Initial Results on Phoebe and Iapetus
The Cassini Imaging Science Subsystem acquired high-resolution imaging data on the outer Saturnian moon, Phoebe, during Cassini's close flyby on 11 June 2004 and on Iapetus during a flyby on 31 December 2004. Phoebe has a heavily cratered and ancient surface, shows evidence of ice near the surf...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 2005-02, Vol.307 (5713), p.1237-1242 |
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creator | Porco, C. C Baker, E Barbara, J Beurle, K Brahic, A Burns, J. A Charnoz, S Cooper, N Dawson, D. D Del Genio, A. D Denk, T Dones, L Dyudina, U Evans, M. W Giese, B Grazier, K Helfenstein, P Ingersoll, A. P Jacobson, R. A Johnson, T. V McEwen, A Murray, C. D Neukum, G Owen, W. M Perry, J Roatsch, T Spitale, J Squyres, S Thomas, P. C Tiscareno, M Turtle, E Vasavada, A. R Veverka, J Wagner, R West, R |
description | The Cassini Imaging Science Subsystem acquired high-resolution imaging data on the outer Saturnian moon, Phoebe, during Cassini's close flyby on 11 June 2004 and on Iapetus during a flyby on 31 December 2004. Phoebe has a heavily cratered and ancient surface, shows evidence of ice near the surface, has distinct layering of different materials, and has a mean density that is indicative of an ice-rock mixture. Iapetus's dark leading side (Cassini Regio) is ancient, heavily cratered terrain bisected by an equatorial ridge system that reaches 20 kilometers relief. Local albedo variations within and bordering Cassini Regio suggest mass wasting of ballistically deposited material, the origin of which remains unknown. |
doi_str_mv | 10.1126/science.1107981 |
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C ; Baker, E ; Barbara, J ; Beurle, K ; Brahic, A ; Burns, J. A ; Charnoz, S ; Cooper, N ; Dawson, D. D ; Del Genio, A. D ; Denk, T ; Dones, L ; Dyudina, U ; Evans, M. W ; Giese, B ; Grazier, K ; Helfenstein, P ; Ingersoll, A. P ; Jacobson, R. A ; Johnson, T. V ; McEwen, A ; Murray, C. D ; Neukum, G ; Owen, W. M ; Perry, J ; Roatsch, T ; Spitale, J ; Squyres, S ; Thomas, P. C ; Tiscareno, M ; Turtle, E ; Vasavada, A. R ; Veverka, J ; Wagner, R ; West, R</creator><creatorcontrib>Porco, C. C ; Baker, E ; Barbara, J ; Beurle, K ; Brahic, A ; Burns, J. A ; Charnoz, S ; Cooper, N ; Dawson, D. D ; Del Genio, A. D ; Denk, T ; Dones, L ; Dyudina, U ; Evans, M. W ; Giese, B ; Grazier, K ; Helfenstein, P ; Ingersoll, A. P ; Jacobson, R. A ; Johnson, T. V ; McEwen, A ; Murray, C. D ; Neukum, G ; Owen, W. M ; Perry, J ; Roatsch, T ; Spitale, J ; Squyres, S ; Thomas, P. C ; Tiscareno, M ; Turtle, E ; Vasavada, A. 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C</creatorcontrib><creatorcontrib>Baker, E</creatorcontrib><creatorcontrib>Barbara, J</creatorcontrib><creatorcontrib>Beurle, K</creatorcontrib><creatorcontrib>Brahic, A</creatorcontrib><creatorcontrib>Burns, J. A</creatorcontrib><creatorcontrib>Charnoz, S</creatorcontrib><creatorcontrib>Cooper, N</creatorcontrib><creatorcontrib>Dawson, D. D</creatorcontrib><creatorcontrib>Del Genio, A. D</creatorcontrib><creatorcontrib>Denk, T</creatorcontrib><creatorcontrib>Dones, L</creatorcontrib><creatorcontrib>Dyudina, U</creatorcontrib><creatorcontrib>Evans, M. W</creatorcontrib><creatorcontrib>Giese, B</creatorcontrib><creatorcontrib>Grazier, K</creatorcontrib><creatorcontrib>Helfenstein, P</creatorcontrib><creatorcontrib>Ingersoll, A. P</creatorcontrib><creatorcontrib>Jacobson, R. A</creatorcontrib><creatorcontrib>Johnson, T. V</creatorcontrib><creatorcontrib>McEwen, A</creatorcontrib><creatorcontrib>Murray, C. 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Phoebe has a heavily cratered and ancient surface, shows evidence of ice near the surface, has distinct layering of different materials, and has a mean density that is indicative of an ice-rock mixture. Iapetus's dark leading side (Cassini Regio) is ancient, heavily cratered terrain bisected by an equatorial ridge system that reaches 20 kilometers relief. Local albedo variations within and bordering Cassini Regio suggest mass wasting of ballistically deposited material, the origin of which remains unknown.</description><subject>Albedo</subject><subject>Analysis</subject><subject>Artificial satellites</subject><subject>Astronomical objects</subject><subject>Astronomy</subject><subject>Evidence</subject><subject>Extraterrestrial Environment</subject><subject>Fractions</subject><subject>Geologic Sediments</subject><subject>Iapetus (Satellite)</subject><subject>Ice</subject><subject>Image resolution</subject><subject>Imaging</subject><subject>Impact craters</subject><subject>Moons</subject><subject>Observations</subject><subject>Porosity</subject><subject>Research Articles and Reports</subject><subject>Satellites</subject><subject>Satellites (Astronomical bodies)</subject><subject>Saturn</subject><subject>Saturn (Planet)</subject><subject>Saturnian satellites</subject><subject>Scientific Concepts</subject><subject>Scientific imaging</subject><subject>Space exploration</subject><subject>Spacecraft</subject><subject>Spectrometer</subject><subject>Spectrometers</subject><subject>Topography</subject><subject>Water</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqN0-GL0zAUAPAiijenn_0iWjxQ_NC7l6ZNUz8I59A5GE6c59eQpq81o0tm04L335vZokzG3Si0tO_3Xh9JXhA8JXBBSMwundJoFPoXyHJO7gUTAnka5THQ-8EEgLKIQ5aeBY-c2wD4WE4fBmckzShJEpgE72bSOW10uNjKWps6XA8V34YLozstm_Arur7pXGhN-OWHxQJDacpwIXfY9e5x8KCSjcMn43MaXH_88G32KVqu5ovZ1TJSnPEu4jkC5TkkeaFUqRjBpFAVJ5gDFjwBSBKiCEgqkSMvK1ZChUXJpMzKCipOp8Hroe6utT97dJ3YaqewaaRB2zuRJZQwBjT28tWtkmVJyrP0bhjzlMQJ5ydAQtP97S5IMub3zHc5DV7-Bze2b41fQBETyiAnf_o7H1AtGxTaVLZrpdpXFFeEgncZ7P8ZHVE1GmxlYw1W2n8-8BdHvL9K3Gp1NOHNQYI3Hf7qatk7Jxbrz6fb1ffT7fv5yZbPl7ctyGiVbRqsUfhTOVsd-svBq9Y612Ildq3eyvZGEBD7GRPjjIlxxnzG83H3-mKL5T8_DpUHzwawcZ1t_8apP-gxMB9-MYQraYWsW-3E9Tr2rfjxzBnzE_obSEArxQ</recordid><startdate>20050225</startdate><enddate>20050225</enddate><creator>Porco, C. 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Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Porco, C. C</au><au>Baker, E</au><au>Barbara, J</au><au>Beurle, K</au><au>Brahic, A</au><au>Burns, J. A</au><au>Charnoz, S</au><au>Cooper, N</au><au>Dawson, D. D</au><au>Del Genio, A. D</au><au>Denk, T</au><au>Dones, L</au><au>Dyudina, U</au><au>Evans, M. W</au><au>Giese, B</au><au>Grazier, K</au><au>Helfenstein, P</au><au>Ingersoll, A. P</au><au>Jacobson, R. A</au><au>Johnson, T. V</au><au>McEwen, A</au><au>Murray, C. D</au><au>Neukum, G</au><au>Owen, W. M</au><au>Perry, J</au><au>Roatsch, T</au><au>Spitale, J</au><au>Squyres, S</au><au>Thomas, P. C</au><au>Tiscareno, M</au><au>Turtle, E</au><au>Vasavada, A. R</au><au>Veverka, J</au><au>Wagner, R</au><au>West, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cassini Imaging Science: Initial Results on Phoebe and Iapetus</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>2005-02-25</date><risdate>2005</risdate><volume>307</volume><issue>5713</issue><spage>1237</spage><epage>1242</epage><pages>1237-1242</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><coden>SCIEAS</coden><abstract>The Cassini Imaging Science Subsystem acquired high-resolution imaging data on the outer Saturnian moon, Phoebe, during Cassini's close flyby on 11 June 2004 and on Iapetus during a flyby on 31 December 2004. Phoebe has a heavily cratered and ancient surface, shows evidence of ice near the surface, has distinct layering of different materials, and has a mean density that is indicative of an ice-rock mixture. Iapetus's dark leading side (Cassini Regio) is ancient, heavily cratered terrain bisected by an equatorial ridge system that reaches 20 kilometers relief. Local albedo variations within and bordering Cassini Regio suggest mass wasting of ballistically deposited material, the origin of which remains unknown.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>15731440</pmid><doi>10.1126/science.1107981</doi><tpages>6</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0036-8075 |
ispartof | Science (American Association for the Advancement of Science), 2005-02, Vol.307 (5713), p.1237-1242 |
issn | 0036-8075 1095-9203 |
language | eng |
recordid | cdi_proquest_miscellaneous_743166032 |
source | American Association for the Advancement of Science; Jstor Complete Legacy; MEDLINE |
subjects | Albedo Analysis Artificial satellites Astronomical objects Astronomy Evidence Extraterrestrial Environment Fractions Geologic Sediments Iapetus (Satellite) Ice Image resolution Imaging Impact craters Moons Observations Porosity Research Articles and Reports Satellites Satellites (Astronomical bodies) Saturn Saturn (Planet) Saturnian satellites Scientific Concepts Scientific imaging Space exploration Spacecraft Spectrometer Spectrometers Topography Water |
title | Cassini Imaging Science: Initial Results on Phoebe and Iapetus |
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