Diferencies ente revisiones de «Ganimedes (lluna)»

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Llinia 59:
[[File:Ganymede diagram.svg|thumb|400px|right|Representación artística de la estructura interna de Ganimedes. Les capes tán representaes a escala.]]
Yá na década de 1970 los científicos de la [[NASA]] entamaron a sospechar la esistencia en Ganimedes d'un océanu perprofundu encerráu ente dos capas de xelu, una superficial y otra que envuelve, en contactu directu con elli, el mantu rocosu<ref name="Showman1999" /><ref name="clubsandwich 2014" />{<ref name="Sohl2002" /><ref name="Freeman2006">{{cite journal |last=Freeman |first=J. |title=Non-Newtonian stagnant lid convection and the thermal evolution of Ganymede and Callisto |journal=Planetary and Space Science |date=2006 |volume=54 |issue=1 |pages=2–14 |doi=10.1016/j.pss.2005.10.003 |url=http://bowfell.geol.ucl.ac.uk/~lidunka/EPSS-papers/pete2.pdf |archiveurl=https://web.archive.org/web/20070824155106/http://bowfell.geol.ucl.ac.uk/~lidunka/EPSS-papers/pete2.pdf |archivedate=2007-08-24 |format=PDF |bibcode=2006P&SS...54....2F }}</ref><ref name="amount of water in ocean">{{cite web | url=http://earthsky.org/space/underground-ocean-on-jupiters-largest-moon | title=Underground ocean on Jupiter's largest moon | publisher=EarthSky | date=March 15, 2015 | accessdate=17 de febreru de 2017 }}</ref>. Na década de 1990 la misión ''Galileo'' sobrevoló'l satélite, confirmando la esistencia d'esti océanu soterráneu. Un análisis asoleyáu en [[2014]], que tien en cuenta la termodinámica de les mases d'agua y los efectos del sal, suxere que Ganimedes podría tener delles capes oceániques d'agua líquido separtaes por capes de xelu, cola capa más profunda en contactu directu col mantu rocosu<ref name="clubsandwich 2014" /><ref name="Vance">{{cite journal |title=Ganymede's internal structure including thermodynamics of magnesium sulfate oceans in contact with ice |journal=Planetary and Space Science |date=12 April 2014 |last=Vance |first=Steve |last2=Bouffard |first2=Mathieu |last3=Choukroun |first3=Mathieu |last4=Sotina |first4=Christophe |doi=10.1016/j.pss.2014.03.011 |url=http://www.sciencedirect.com/science/article/pii/S0032063314000695 |accessdate=17 de febreru de 2017 |bibcode = 2014P&SS...96...62V |volume=96 |pages=62–70}}</ref>
<ref name="NASA-20140501c">{{cite web |author=Staff |title=Video (00:51) - Jupiter's 'Club Sandwich' Moon |url=https://www.youtube.com/watch?v=oBbWjlkuw5U |date=1 May 2014 |work=[[NASA]] |accessdate=17 de febreru de 2017 }}</ref><ref name="Hubble 2015">{{cite news |url=http://phys.org/news/2015-03-hubble-underground-ocean-jupiter-largest.html?utm_source=nwletter&utm_medium=email&utm_content=splt-item&utm_campaign=daily-nwletter |title=Hubble observations suggest underground ocean on Jupiter's largest moon Ganymede |work=NASA |publisher=PhysOrg |date=12 March 2015 |accessdate=2015-03-1317 de febreru de 2017 }}</ref>. La esistencia d'etiesi contactu directu ente la roca y l'agua líquido podría ser un factor importante nel orixe de la vida<ref name="clubsandwich 2014" />. Esti análisis tamién indica que les grandes profundidaes a les que s'alcuentren estes capes líquides (el mantu rocosu ta a 800 km de profundidá) supón que la temperatura nel océanu más inferior, el que ta en contactu col mantu, podía ser hasta 40 vegaes mayor que la de les otres capes oceániques asitiaes ente dos capes de xelu. En marzu de [[2015]] comunicose que les mediciones feches col telescopiu espacial ''Hubble'' del movimientu de les aurores sobre la superficie de Ganimedes suxeren la esistencia d'un océanu soterráneu: la esistencia d'un gran océanu d'agua salao afecta'l campu magnéticu d'esti cuerpu celeste y, poro, la so [[aurora polar|aurora]]<ref name="Ocean Hubble" /><ref name="Hubble 2015"/><ref name="sciencedaily1503">http://www.sciencedaily.com/releases/2015/03/150312112112.htm</ref><ref name="sswater1"> {{cite journal | last1 = Saur | first1 = Joachim | last2 = Duling | first2 = Stefan | last3 = Roth | first3 = Lorenz | last4 = Jia | first4 = Xianzhe | last5 = Strobel | first5 = Darrell F. | last6 = Feldman | first6 = Paul D. | last7 = Christensen | first7 = Ulrich R. | last8 = Retherford | first8 = Kurt D. | last9 = McGrath | first9 = Melissa A. | last10 = Musacchio | first10 = Fabrizio | last11 = Wennmacher | first11 = Alexandre | last12 = Neubauer | first12 = Fritz M. | last13 = Simon | first13 = Sven | last14 = Hartkorn | first14 = Oliver | year = 2015 | title = The Search for a Subsurface Ocean in Ganymede with Hubble Space Telescope Observations of its Auroral Ovals | url = | journal = Journal of Geophysical Research: Space Physics | volume = 120| issue = | pages = 1715–1737| doi = 10.1002/2014JA020778 }}</ref>.
 
Hai delles especulaciones, nel ámbitu científicu, sobre l'habitabilidá potencial del océanu ganimedín<ref name="amount of water in ocean" /><ref name="subsurface ocean found">{{cite web | url=http://www.independent.co.uk/news/science/ganymede-oceans-on-jupiters-moon-could-have-been-home-to-alien-life-10106286.html | title=Ganymede oceans on Jupiter's moon could have been home to alien life | publisher=The Independent | date=March 13, 2015 | accessdate=August 14, 2015 | author=Griffin, Andrew}}</ref>.