2014
DOI: 10.1051/0004-6361/201322207
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From stellar nebula to planetesimals

Abstract: Context. Solar and extrasolar comets and extrasolar planets are the subject of numerous studies in order to determine their chemical composition and internal structure. In the case of planetesimals, their compositions are important as they govern in part the composition of future planets. Aims. The present works aims at determining the chemical composition of icy planetesimals, believed to be similar to present day comets, formed in stellar systems of solar chemical composition. The main objective of this work… Show more

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Cited by 73 publications
(82 citation statements)
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References 120 publications
(195 reference statements)
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“…This trend is generally thought to be controlled by the relative importance of accretion of solid planetesimals versus H/He-dominated gas. Planet population synthesis models aim to match atmospheric metallicity to planet mass (Fortney et al 2013;Marboeuf et al 2014), but there are limited data available for planets outside the solar system. The metallicity of WASP-43b indicates that the trend seen in the solar system may extend to exoplanets.…”
Section: Comparison With Solar System Planetsmentioning
confidence: 99%
See 1 more Smart Citation
“…This trend is generally thought to be controlled by the relative importance of accretion of solid planetesimals versus H/He-dominated gas. Planet population synthesis models aim to match atmospheric metallicity to planet mass (Fortney et al 2013;Marboeuf et al 2014), but there are limited data available for planets outside the solar system. The metallicity of WASP-43b indicates that the trend seen in the solar system may extend to exoplanets.…”
Section: Comparison With Solar System Planetsmentioning
confidence: 99%
“…Beyond the water frost line, water is expected to be the dominant component by mass of planetesimals in solar composition protoplanetary disks (Marboeuf et al 2008;Johnson et al 2012). Measurements of a planet's water content can therefore help constrain the disk chemistry, location, and surface density of solids where it formed (e.g., Lodders 2004;Mousis et al 2009;Öberg et al 2011;Madhusudhan et al 2011;Mousis et al 2012;Helled & Lunine 2014;Marboeuf et al 2014).…”
Section: Introductionmentioning
confidence: 99%
“…This approach, to couple observed C/O ratios in exoplanets with their possible formation sites, typically assumes that the radial dependence of the midplane C/O ratio is defined solely by the iceline (snowline) positions of the main volatile species in a disk of fixed chemical composition (see e.g. Marboeuf et al 2014). The position of the iceline for a particular species depends on the temperature structure of the disk midplane, and the binding energy (or desorption energy) of the molecule to ice mantles on dust grains.…”
Section: Introductionmentioning
confidence: 99%
“…Both of these models include dust and pebble dynamics at the expense of kinetic chemistry. Those models which do allow evolving disk midplane conditions also neglect kinetic chemistry for simplicity (see, e.g., Marboeuf et al 2014;Mordasini et al 2016).…”
Section: Introductionmentioning
confidence: 99%
“…This implies that the probe did not measure the deep, well-mixed water abundance (Wong et al 2004). An interpretation of the volatile enrichments measured in the four giant planets is that their building blocks agglomerated from a mixture of rocks and crystalline ices that condensed during the cooling period of the protosolar nebula (Gautier et al 2001;Hersant et al 2004Hersant et al , 2008Alibert et al 2005aAlibert et al , 2005bGautier and Hersant 2005;Mousis et al 2006Mousis et al , 2009cMousis et al , 2012Marboeuf et al 2008Marboeuf et al , 2014aMarboeuf et al , 2014b. The ices consist of a mixture of clathrates or hydrates (case of NH 3 ) and pure condensates whose relative proportions were fixed by the availability of crystalline water at the time of volatiles trapping in the clathrate phase and the efficiency of the clathration kinetics in the protosolar nebula (Mousis et al 2009c).…”
Section: Interpretations Of the Volatile Enrichments In The Atmosphermentioning
confidence: 99%