Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308755008> ?p ?o ?g. }
- W4308755008 endingPage "3721" @default.
- W4308755008 startingPage "3703" @default.
- W4308755008 abstract "The initial abundance of radioactive heat producing isotopes in the interior of a terrestrial planet are important drivers of its thermal evolution and the related tectonics and possible evolution to an Earth-like habitat. The moderately volatile element K can be outgassed from a magma ocean into H$_2$-dominated primordial atmospheres of protoplanets with assumed masses between 0.55-1.0$ M_{rm Earth}$ at the time when the gas disk evaporated. We estimate this outgassing and let these planets grow through impacts of depleted and non-depleted material that resembles the same $^{40}$K abundance of average carbonaceous chondrites until the growing protoplanets reach 1.0 $M_{rm Earth}$. We examine different atmospheric compositions and, as a function of pressure and temperature, calculate the proportion of K by Gibbs Free Energy minimisation using the GGChem code. We find that for H$_2$-envelopes and for magma ocean surface temperatures that are $ge$ 2500 K, no K condensates are thermally stable, so that outgassed $^{40}$K can populate the atmosphere to a great extent. However, due to magma ocean turn-over time and the limited diffusion of $^{40}$K into the upper atmosphere, from the entire $^{40}$K in the magma ocean only a fraction may be available for escaping into space. The escape rates of the primordial atmospheres and the dragged $^{40}$K are further simulated for different stellar EUV-activities with a multispecies hydrodynamic upper atmosphere evolution model. Our results lead to different abundances of heat producing elements within the fully grown planets which may give rise to different thermal and tectonic histories of terrestrial planets and their habitability conditions." @default.
- W4308755008 created "2022-11-15" @default.
- W4308755008 creator A5004020898 @default.
- W4308755008 creator A5010026034 @default.
- W4308755008 creator A5015368716 @default.
- W4308755008 creator A5018571338 @default.
- W4308755008 creator A5026948328 @default.
- W4308755008 creator A5037735809 @default.
- W4308755008 creator A5042567592 @default.
- W4308755008 creator A5079977194 @default.
- W4308755008 creator A5081750356 @default.
- W4308755008 date "2022-11-07" @default.
- W4308755008 modified "2023-10-06" @default.
- W4308755008 title "Modification of the radioactive heat budget of Earth-like exoplanets by the loss of primordial atmospheres" @default.
- W4308755008 cites W1502362363 @default.
- W4308755008 cites W1564638153 @default.
- W4308755008 cites W1829925112 @default.
- W4308755008 cites W1963678180 @default.
- W4308755008 cites W1965176092 @default.
- W4308755008 cites W1974193119 @default.
- W4308755008 cites W1974543936 @default.
- W4308755008 cites W1977833674 @default.
- W4308755008 cites W1979224021 @default.
- W4308755008 cites W1981174654 @default.
- W4308755008 cites W1983230233 @default.
- W4308755008 cites W1984831630 @default.
- W4308755008 cites W1987655010 @default.
- W4308755008 cites W1997754227 @default.
- W4308755008 cites W1998133890 @default.
- W4308755008 cites W2000984784 @default.
- W4308755008 cites W2013747934 @default.
- W4308755008 cites W2033808067 @default.
- W4308755008 cites W2033950450 @default.
- W4308755008 cites W2035539272 @default.
- W4308755008 cites W2045546058 @default.
- W4308755008 cites W2050155687 @default.
- W4308755008 cites W2057005152 @default.
- W4308755008 cites W2063338749 @default.
- W4308755008 cites W2065193424 @default.
- W4308755008 cites W2077315291 @default.
- W4308755008 cites W2082329580 @default.
- W4308755008 cites W2083682672 @default.
- W4308755008 cites W2084238323 @default.
- W4308755008 cites W2087075409 @default.
- W4308755008 cites W2093483991 @default.
- W4308755008 cites W2093772653 @default.
- W4308755008 cites W2094283942 @default.
- W4308755008 cites W2095245998 @default.
- W4308755008 cites W2098020805 @default.
- W4308755008 cites W2103083744 @default.
- W4308755008 cites W2106231443 @default.
- W4308755008 cites W2148464816 @default.
- W4308755008 cites W2148932347 @default.
- W4308755008 cites W2154806370 @default.
- W4308755008 cites W2156865674 @default.
- W4308755008 cites W2159548461 @default.
- W4308755008 cites W2163711161 @default.
- W4308755008 cites W2168227401 @default.
- W4308755008 cites W2196377707 @default.
- W4308755008 cites W2215779834 @default.
- W4308755008 cites W2337957959 @default.
- W4308755008 cites W2358339514 @default.
- W4308755008 cites W2474270446 @default.
- W4308755008 cites W2582940684 @default.
- W4308755008 cites W2594921500 @default.
- W4308755008 cites W2694850345 @default.
- W4308755008 cites W2749817145 @default.
- W4308755008 cites W2756611662 @default.
- W4308755008 cites W2765302758 @default.
- W4308755008 cites W2789339027 @default.
- W4308755008 cites W2798926696 @default.
- W4308755008 cites W2801411495 @default.
- W4308755008 cites W2803242398 @default.
- W4308755008 cites W2899497983 @default.
- W4308755008 cites W2901987943 @default.
- W4308755008 cites W2906739959 @default.
- W4308755008 cites W2912820389 @default.
- W4308755008 cites W2948416465 @default.
- W4308755008 cites W2950506180 @default.
- W4308755008 cites W2990868299 @default.
- W4308755008 cites W2995604319 @default.
- W4308755008 cites W3009274849 @default.
- W4308755008 cites W3013370896 @default.
- W4308755008 cites W3019634165 @default.
- W4308755008 cites W3047770843 @default.
- W4308755008 cites W3096687195 @default.
- W4308755008 cites W3098079606 @default.
- W4308755008 cites W3098255932 @default.
- W4308755008 cites W3098607060 @default.
- W4308755008 cites W3098668229 @default.
- W4308755008 cites W3098847833 @default.
- W4308755008 cites W3098896129 @default.
- W4308755008 cites W3100640367 @default.
- W4308755008 cites W3101418786 @default.
- W4308755008 cites W3101463779 @default.
- W4308755008 cites W3101725516 @default.
- W4308755008 cites W3101826191 @default.
- W4308755008 cites W3102495572 @default.