Results 61 to 70 of about 14,221 (195)
Magma Ocean Evolution at Arbitrary Redox State
Journal of Geophysical Research: Planets, Volume 129, Issue 12, December 2024.Abstract Interactions between magma oceans and overlying atmospheres on young rocky planets leads to an evolving feedback of outgassing, greenhouse forcing, and mantle melt fraction. Previous studies have predominantly focused on the solidification of oxidized Earth‐similar planets, but the diversity in mean density and irradiation observed in the low ...
Harrison Nicholls +3 more
wiley +1 more source
Chemistry in Externally FUV-irradiated Disks in the Outskirts of the Orion Nebula Cluster
The Astrophysical JournalMost stars are born in stellar clusters, and their protoplanetary disks, which are the birthplaces of planets, can, therefore, be affected by the radiation of nearby massive stars.
Javiera K. Díaz-Berríos +6 more
doaj +1 more source
Hybrid Mechanisms for Gas/Ice Giant Planet Formation [PDF]
Astrophys.J. 629 (2005) 549-555, 2004 The effects of gas pressure gradients on the motion of solid grains in the solar nebula substantially enhances the efficiency of forming protoplanetary cores in the standard core accretion model in 'hybrid' scenarios for gas/ice giant planet formation.
arxiv +1 more source
Differences in elemental abundances between CI chondrites and the solar photosphere
Meteoritics &Planetary Science, Volume 59, Issue 12, Page 3193-3214, December 2024.Abstract CI chondrites have been a proxy for the solar system since the mid‐20th century. The photospheric and CI chondrite abundances (P and CI, respectively) show a strong correlation. CI as a proxy is also justified by the (i) smoothness of their abundances plotted as a function of odd mass number and (ii) agreement within the error of P as ...
A. J. G. Jurewicz +3 more
wiley +1 more source
Minimum Mass Solar Nebulae and Planetary Migration [PDF]
Astrophys.J.698:606-614,2009, 2009 The Minimum Mass Solar Nebula (MMSN) is a protoplanetary disk that contains the minimum amount of solids necessary to build the planets of the Solar System. Assuming that the giant planets formed in the compact configuration they have at the beginning of the "Nice model", Desch (2007) built a new MMSN.
arxiv +1 more source
Meteoritics &Planetary Science, Volume 59, Issue 12, Page 3282-3304, December 2024.Abstract Understanding the material transport and mixing processes in the Solar protoplanetary disk provides important constraints on the origin of chemical and isotopic diversities of our planets. The limited extent of radial transport and mixing between the inner and outer Solar System has been suggested based on a fundamental isotopic dichotomy ...
Kohei Fukuda +7 more
wiley +1 more source
Natural Sciences, Volume 4, Issue 4, October 2024.Large free aromatic species, with up to 61 carbon atoms, were detected in grains of the Ryugu carbonaceous asteroid using ultra‐sensitive two‐step laser mass spectrometry. This discovery confirms the presence of large polycyclic aromatic hydrocarbons in the interstellar medium and provides new information on the formation and evolution of organic ...
Hassan Sabbah +3 more
wiley +1 more source
Origin and Loss of nebula-captured hydrogen envelopes from "sub"- to "super-Earths" in the habitable zone of Sun-like stars [PDF]
, 2014 We investigate the origin and loss of captured hydrogen envelopes from protoplanets between `sub-Earth'-like bodies of 0.1$M_{\oplus}$ up to `super-Earths' with 5$M_{\oplus}$ in the HZ of a Sun like G star, assuming their rocky cores had formed before the nebula dissipated.
arxiv +1 more source
AN ASYMMETRIC JET-LAUNCHING MODEL FOR THE PROTOPLANETARY NEBULA CRL 618 [PDF]
The Astrophysical Journal, 2014 We propose an asymmetrical jet ejection mechanism in order to model the mirror symmetry observed in the lobe distribution of some protoplanetary nebulae (pPNe), such as the pPN CRL 618. 3D hydrodynamical simulations of a precessing jet launched from an orbiting source were carried out including an alternation in the ejections of the two outflow lobes ...
Alejandro C. Raga +4 more
openaire +4 more sources
The Meteoritical Society: Business from 2023 to 2024
Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot +2 more
wiley +1 more source