Lava worlds: From early earth to exoplanets

  title={Lava worlds: From early earth to exoplanets},
  author={Keng-Hsien Chao and Rebecca deGraffenried and Mackenzie Lach and William Nelson and Kelly Truax and Eric Gaidos},
  journal={arXiv: Earth and Planetary Astrophysics},
Internal dynamics of magma ocean and its linkage to atmospheres
Geological and astronomical observations on the "lava world" of the rocky planet, with additional theoretical interpretation of Moon’s crustal formation, bring up to the occurrence of the magma ocean
Occultation Mapping of Io’s Surface in the Near-infrared. I. Inferring Static Maps
With hundreds of active volcanoes varying in intensity on different timescales, Jupiter’s moon Io is the most volcanically active body in the solar system. Io has been observed from Earth using
A Hot Mars-sized Exoplanet Transiting an M Dwarf
We validate the planetary nature of an ultra-short-period planet orbiting the M dwarf KOI-4777. We use a combination of space-based photometry from Kepler, high-precision, near-infrared Doppler
Evolution of Mercury’s Earliest Atmosphere
MESSENGER observations suggest a magma ocean formed on proto-Mercury, during which evaporation of metals and outgassing of C- and H-bearing volatiles produced an early atmosphere. Atmospheric escape
On the Need for a Classification System for Consistent Characterization of the Composition of Planetary Bodies
A classification system is presented for characterizing the composition of planetary bodies. Mass-radius and massdensity relationships indicate planets may be broadly grouped into Gas Giant, Rock-Ice
Radioactive Planet Formation
  • F. Adams
  • Physics, Geology
    The Astrophysical Journal
  • 2021
Young stellar objects are observed to have large X-ray fluxes and are thought to produce commensurate luminosities in energetic particles (cosmic rays). This particle radiation, in turn, can
Redox Hysteresis of Super-Earth Exoplanets from Magma Ocean Circulation
Internal redox reactions may irreversibly alter the mantle composition and volatile inventory of terrestrial and super-Earth exoplanets and affect the prospects for atmospheric observations. The


The split fate of the early Earth, Mars, Venus, and Moon
A magma ocean origin to divergent redox evolutions of rocky planetary bodies and early atmospheres
A vertical oxygen fugacity gradient in magma oceans of Earth, Mars, and the Moon is suggested and the study proposes larger planets like Earth to have stronger oxidized upper mantles than smaller bodies such as Mars or the Moon.
Arguments for the non-existence of magma oceans in asteroids
Introduction: The Ambiguity of the Term “Magma Ocean” Applied to Asteroids The suggestion that Earth’s Moon (e.g. Warren, 1985; Taylor and Norman, 1991) and Earth itself (e.g. Agee and Longhi, 1992)
Magma oceans in the inner solar system
Theory and observations point to the occurrence of magma ponds or oceans in the early evolution of terrestrial planets and in many early-accreting planetesimals. The apparent ubiquity of melting
Evidence for extremely rapid magma ocean crystallization and crust formation on Mars
Concomitant high-precision U–Pb ages and Hf-isotope compositions of ancient zircons from the NWA 7034 Martian meteorite suggest that Mars must have formed its primordial crust extremely swiftly, less than 20 million years after the formation of the Solar System.
The model of lunar evolution in which the anorthositic plagioclase-rich oldest crust of the moon is formed over a period of 300 Myr or less by crystallization as it floats on a global ocean of magma
Evidence for an early wet Moon from experimental crystallization of the lunar magma ocean
The Moon is thought to have been covered initially by a deep magma ocean, its gradual solidification leading to the formation of the plagioclase-rich highland crust. We performed a high-pressure,
Evidence for anorthositic crust formed on an inner solar system planetesimal
doi: 10.7185/geochemlet.1921 During the first million years of solar system history, planetesimals experienced extensive melting powered by the radioactive decay of 26Al (Lee et al., 1977). To date,
Recently discovered exoplanets on close-in orbits should have surface temperatures of hundreds to thousands of Kelvin. They are likely tidally locked and synchronously rotating around their parent