Olen ennustanut että Saturnuksen kuusta Enceladuksesta vapautuu paljon energiaa silloin kun Enceladus työntyy pois päin Auringosta suhteessa Saturnukseen!
Tämä siksi että silloin Saturnuksesta säteilevät hiukkaset kohtaavat Enceladuksen sisällä Auringosta tulevia hiukkasia, jolloin niistä vapautuu energiaa joka saa Enceladuksen atomien ytimistä vapautumaan paljon energiaa joka lopulta työntyy ulos Enceladuksesta havaittavalla tavalla!
Ilmeisesti Enceladusta ei vielä voida havannoida montaa päivää peräkkäin? Luotaimet ohittavat Enceladuksen nopeasti ja tekevät havaintonsa?
"(PhysOrg.com) -- Heat output from the south polar region of Saturn's moon Enceladus is much greater than was previously thought possible, according to a new analysis of data collected by NASA's Cassini spacecraft. The study was published in the Journal of Geophysical Research on March 4.
Ads by Google
Polar sykemittarit - verkkokaupastamme edullisesti. Nopeimmillaan huomiseksi. - finfit.fi/sykemittari
Data from Cassini's composite infrared spectrometer of Enceladus' south polar terrain, which is marked by linear fissures, indicate that the internal heat-generated power is about 15.8 gigawatts, approximately 2.6 times the power output of all the hot springs in the Yellowstone region, or comparable to 20 coal-fueled power stations. This is more than an order of magnitude higher than scientists had predicted, according to Carly Howett, the lead author of study, who is a postdoctoral researcher at Southwest Research Institute in Boulder, Colo., and a composite infrared spectrometer science team member.
"The mechanism capable of producing the much higher observed internal power remains a mystery and challenges the currently proposed models of long-term heat production," said Howett.
It has been known since 2005 that Enceladus' south polar terrain is geologically active and the activity is centered on four roughly parallel linear trenches, 130 kilometers (80 miles) long and about 2 kilometers (1 mile) wide, informally known as the "tiger stripes." Cassini also found that these fissures eject great plumes of ice particles and water vapor continually into space. These trenches have elevated temperatures due to heat leaking out of Enceladus' interior.
A 2007 study predicted the internal heat of Enceladus, if principally generated by tidal forces arising from the orbital resonance between Enceladus and another moon, Dione, could be no greater than 1.1 gigawatts averaged over the long term. Heating from natural radioactivity inside Enceladus would add another 0.3 gigawatts.
The latest analysis, which also involved the composite infrared spectrometer team members John Spencer at Southwest Research Institute, and John Pearl and Marcia Segura at NASA's Goddard Space Flight Center in Greenbelt, Md., uses observations taken in 2008, which cover the entire south polar terrain. They constrained Enceladus' surface temperatures to determine the region's surprisingly high output.
A possible explanation of the high heat flow observed is that Enceladus' orbital relationship to Saturn and Dione changes with time, allowing periods of more intensive tidal heating, separated by more quiescent periods. This means Cassini might be lucky enough to be seeing Enceladus when it's unusually active.
The new, higher heat flow determination makes it even more likely that liquid water exists below Enceladus' surface, Howett noted.
Recently, scientists studying ice particles ejected from the plumes discovered that some of the particles are salt-rich, and are probably frozen droplets from a saltwater ocean in contact with Enceladus' mineral-rich rocky core. The presence of a subsurface ocean, or perhaps a south polar sea between the moon's outer ice shell and its rocky interior would increase the efficiency of the tidal heating by allowing greater tidal distortions of the ice shell.
"The possibility of liquid water, a tidal energy source and the observation of organic (carbon-rich) chemicals in the plume of Enceladus make the satellite a site of strong astrobiological interest," Howett said."
http://www.physorg.com/news/2011-03-cassini-enceladus-powerhouse.html
.
Tämä siksi että silloin Saturnuksesta säteilevät hiukkaset kohtaavat Enceladuksen sisällä Auringosta tulevia hiukkasia, jolloin niistä vapautuu energiaa joka saa Enceladuksen atomien ytimistä vapautumaan paljon energiaa joka lopulta työntyy ulos Enceladuksesta havaittavalla tavalla!
Ilmeisesti Enceladusta ei vielä voida havannoida montaa päivää peräkkäin? Luotaimet ohittavat Enceladuksen nopeasti ja tekevät havaintonsa?
"(PhysOrg.com) -- Heat output from the south polar region of Saturn's moon Enceladus is much greater than was previously thought possible, according to a new analysis of data collected by NASA's Cassini spacecraft. The study was published in the Journal of Geophysical Research on March 4.
Ads by Google
Polar sykemittarit - verkkokaupastamme edullisesti. Nopeimmillaan huomiseksi. - finfit.fi/sykemittari
Data from Cassini's composite infrared spectrometer of Enceladus' south polar terrain, which is marked by linear fissures, indicate that the internal heat-generated power is about 15.8 gigawatts, approximately 2.6 times the power output of all the hot springs in the Yellowstone region, or comparable to 20 coal-fueled power stations. This is more than an order of magnitude higher than scientists had predicted, according to Carly Howett, the lead author of study, who is a postdoctoral researcher at Southwest Research Institute in Boulder, Colo., and a composite infrared spectrometer science team member.
"The mechanism capable of producing the much higher observed internal power remains a mystery and challenges the currently proposed models of long-term heat production," said Howett.
It has been known since 2005 that Enceladus' south polar terrain is geologically active and the activity is centered on four roughly parallel linear trenches, 130 kilometers (80 miles) long and about 2 kilometers (1 mile) wide, informally known as the "tiger stripes." Cassini also found that these fissures eject great plumes of ice particles and water vapor continually into space. These trenches have elevated temperatures due to heat leaking out of Enceladus' interior.
A 2007 study predicted the internal heat of Enceladus, if principally generated by tidal forces arising from the orbital resonance between Enceladus and another moon, Dione, could be no greater than 1.1 gigawatts averaged over the long term. Heating from natural radioactivity inside Enceladus would add another 0.3 gigawatts.
The latest analysis, which also involved the composite infrared spectrometer team members John Spencer at Southwest Research Institute, and John Pearl and Marcia Segura at NASA's Goddard Space Flight Center in Greenbelt, Md., uses observations taken in 2008, which cover the entire south polar terrain. They constrained Enceladus' surface temperatures to determine the region's surprisingly high output.
A possible explanation of the high heat flow observed is that Enceladus' orbital relationship to Saturn and Dione changes with time, allowing periods of more intensive tidal heating, separated by more quiescent periods. This means Cassini might be lucky enough to be seeing Enceladus when it's unusually active.
The new, higher heat flow determination makes it even more likely that liquid water exists below Enceladus' surface, Howett noted.
Recently, scientists studying ice particles ejected from the plumes discovered that some of the particles are salt-rich, and are probably frozen droplets from a saltwater ocean in contact with Enceladus' mineral-rich rocky core. The presence of a subsurface ocean, or perhaps a south polar sea between the moon's outer ice shell and its rocky interior would increase the efficiency of the tidal heating by allowing greater tidal distortions of the ice shell.
"The possibility of liquid water, a tidal energy source and the observation of organic (carbon-rich) chemicals in the plume of Enceladus make the satellite a site of strong astrobiological interest," Howett said."
http://www.physorg.com/news/2011-03-cassini-enceladus-powerhouse.html
.
Vastaukset 7
Vanhimmat
Olen ennustanut, että joudut sairaseläkkeelle... ja kappas vaan, näinhän on jo käynytkin!
Miksi mainostat tekstissäsi sykemittareita?
Ilmeisesti et ymmärrä lukemaasi tekstiä!?
Luulin että keksit teoriasi ihan itse, mutta katsotkin googlelta hörhöimmät ideat ja siitä vaan baanalle rassailemaan teoriaa.
Minä ennustan että jos menet esittämään naapureillesi teoriaasi, valkotakkiset tulevan kahveille taloosi.
Niin muuttuu teoria. Muutama viikko sitten linnunrataa kohti menevä maapallo räjähteli hurrigaaneja. Nyt auringosta poispäin menevä kuu, encaladus räjähtelee, koittaisit päättää. En kyllä ymmärrä termiä "suhteessa saturnukseen". etääntyykö kuu auringosta vai ei, miten saturnus siihen etääntymiseen voisi liittyä, kuu joko etääntyy auringosta tai ei. Mutta en ymmärrä monta muutakaan asiaa joita esität.
Voi sinua yksinkertaista moukkaa.
"Mutta en ymmärrä monta muutakaan asiaa joita esität."
Täytyy kuitenkin myöntää olevani yhtä yksinkertainen. Paljon on jäänyt minulta tästä "One Simplestä" tajuamatta. Vähän fysiikan kapeaa sektoria opettaneena ja uutta fysiikkaa ohessa harrastaneena nelivektorit ja Lorenzin muunnokset olen ainakin ymmäertävinäni. Valokartion ja sen kausaalisesti kielletyt alueet näen tässä ihan silmissäni. BB:n seurauksena laajeneva avaruus on ainakin kolmiulotteisena tapahtumana selkeää ja se aikaulottuvuuskin on käsityskyvyn rajoilla
Tuota "Simmpleä" en kyllä ymmärrä. Ja kun sen piti olla se yksinkertainen. jne...You know...