Results 101 to 110 of about 42,848 (232)

Nebular water depletion as the cause of Jupiter's low oxygen abundance

open access: yes, 2012
Motivated by recent spectroscopic observations suggesting that atmospheres of some extrasolar giant-planets are carbon-rich, i.e. carbon/oxygen ratio (C/O) $\ge$ 1, we find that the whole set of compositional data for Jupiter is consistent with the ...
Alibert   +15 more
core   +3 more sources

A far-ultraviolet–driven photoevaporation flow observed in a protoplanetary disk [PDF]

open access: yesScience
Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiation produces photodissociation regions (PDRs) on the surfaces of ...
O. Berné   +47 more
semanticscholar   +1 more source

Issue Information

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue 11, Page 2525-2528, November 2025.
wiley   +2 more sources

Differences in elemental abundances between CI chondrites and the solar photosphere

open access: yesMeteoritics &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

Exploring the Ionized Core of the Proto-Planetary Nebula CRL 618 and Its Vicinity with ALMA

open access: yesGalaxies
Proto- and young planetary nebulae comprise dense circumstellar envelopes made of molecular gas and dust, some of which hide compact ionized cores that host stellar systems with hot objects, and show high-velocity bipolar outflows launched from inside ...
José Pablo Fonfría   +6 more
doaj   +1 more source

Super-Earths: A New Class of Planetary Bodies

open access: yes, 2011
Super-Earths, a class of planetary bodies with masses ranging from a few Earth-masses to slightly smaller than Uranus, have recently found a special place in the exoplanetary science.
Armitage P. J.   +21 more
core   +1 more source

Molecular line emission from planetary and protoplanetary nebulae [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
Molecular line emission in the mm- and submm-wave domains is found to be a very useful tool to study planetary nebulae (PNe). Molecular lines, particularly the low-$J$ transitions of carbon monoxide, are known to probe most of the nebular material in young PNe and protoplanetary nebulae (PPNe).
openaire   +1 more source

Unraveling the Cr Isotopes of Ryugu: An Accurate Aqueous Alteration Age and the Least Thermally Processed Solar System Material

open access: yesThe Astrophysical Journal
The analysis of samples returned from the C-type asteroid Ryugu has drastically advanced our knowledge of the evolution of early solar system materials.
Ryoji Tanaka   +25 more
doaj   +1 more source

The Meteoritical Society: Business from 2023 to 2024

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot   +2 more
wiley   +1 more source

Fragmentation-limited Dust Filtration in 2D Simulations of Planet–Disk Systems with Dust Coagulation: Parameter Study and Implications for the Inner Disk’s Dust Mass Budget and Composition

open access: yesThe Astrophysical Journal
Superthermal gas giant planets or their progenitor cores are known to open deep gaps in protoplanetary disks, which stop large, drifting dust particles on their way to the inner disk.
Thomas Pfeil   +2 more
doaj   +1 more source

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