Enrichment of Jupiter's atmosphere by late planetesimal bombardment

S Shibata, R Helled - The Astrophysical Journal Letters, 2022 - iopscience.iop.org
Jupiter's atmosphere is enriched with heavy elements by a factor of about 3 compared to a
protosolar composition. The origin of this enrichment and whether it represents the bulk …

Can Jupiter's Atmospheric Metallicity Be Different from the Deep Interior?

S Müller, R Helled - The Astrophysical Journal, 2024 - iopscience.iop.org
Updated formation and structure models of Jupiter predict a metal-poor envelope. This is at
odds with the two to three times solar metallicity measured by the Galileo probe …

Jupiter's heavy-element enrichment expected from formation models

J Venturini, R Helled - Astronomy & Astrophysics, 2020 - aanda.org
Aims. The goal of this work is to investigate Jupiter's growth by focusing on the amount of
heavy elements accreted by the planet, and to compare this with recent structure models of …

Jupiter's formation and its primordial internal structure

M Lozovsky, R Helled, ED Rosenberg… - The Astrophysical …, 2017 - iopscience.iop.org
The composition of Jupiter and the primordial distribution of the heavy elements are
determined by its formation history. As a result, in order to constrain the primordial internal …

Detailed Calculations of the Efficiency of Planetesimal Accretion in the Core-accretion Model

M Podolak, N Haghighipour… - The Astrophysical …, 2020 - iopscience.iop.org
We present the results of a study of the accretion rate of planetesimals by a growing proto-
Jupiter in the core-accretion model. The purpose of our study is to test the assumptions of …

H2O abundances in the atmospheres of three hot Jupiters

N Madhusudhan, N Crouzet… - The Astrophysical …, 2014 - iopscience.iop.org
The core accretion theory for giant planet formation predicts enrichment of elemental
abundances in planetary envelopes caused by runaway accretion of planetesimals, which is …

In situ enrichment in heavy elements of hot Jupiters

A Morbidelli, K Batygin, E Lega - Astronomy & Astrophysics, 2023 - aanda.org
Context. Radius and mass measurements of short-period giant planets reveal that many of
these planets contain a large amount of heavy elements. Although the range of inferred …

[HTML][HTML] Revelations on Jupiter's formation, evolution and interior: Challenges from Juno results

R Helled, DJ Stevenson, JI Lunine, SJ Bolton… - Icarus, 2022 - Elsevier
The Juno mission has revolutionized and challenged our understanding of Jupiter. As Juno
transitioned into its extended mission, we review the major findings of Jupiter's internal …

The possible formation of Jupiter from supersolar gas

A Aguichine, O Mousis, JI Lunine - The Planetary Science …, 2022 - iopscience.iop.org
More than two decades ago, the Galileo probe performed in situ measurements of the
composition of Jupiter's atmosphere and found that the abundances of C, N, S, P, Ar, Kr, and …

Jupiter's composition suggests its core assembled exterior to the N2 snowline

KI Öberg, R Wordsworth - The Astronomical Journal, 2019 - iopscience.iop.org
Jupiter's atmosphere is enriched in C, N, S, P, Ar, Kr, and Xe with respect to solar
abundances by a factor of∼ 3. Gas giant envelopes are mainly enriched through the …