Results 21 to 30 of about 104,414 (251)

Constraining the volatile fraction of planets from transit observations [PDF]

open access: yes, 2016
The determination of the abundance of volatiles in extrasolar planets is very important as it can provide constraints on transport in protoplanetary disks and on the formation location of planets.
Alibert, Yann
core   +2 more sources

Solar-like oscillations in a massive star [PDF]

open access: yes, 2009
Seismology of stars provides insight into the physical mechanisms taking place in their interior, with modes of oscillation probing different layers. Low-amplitude acoustic oscillations excited by turbulent convection were detected four decades ago in ...
Appourchaux, T.   +17 more
core   +3 more sources

Structure and evolution of super-Earth to super-Jupiter exoplanets: I. heavy element enrichment in the interior [PDF]

open access: yes, 2008
We examine the uncertainties in current planetary models and we quantify their impact on the planet cooling histories and mass-radius relationships.
Alibert   +52 more
core   +2 more sources

Predicting phase transition pressure in solids: a semiclassical possibility

open access: yes, 1999
This is a short review of the physical ideas,algorithm for calculations and some results of a semiclassical theory of the behaviour of materials under high pressure,proposed by P.Savic and R.Kasanin.The theory has found applications from DAC experiments ...
[Cbreve]elebonović V.   +10 more
core   +2 more sources

Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates [PDF]

open access: yes, 2014
We report on the orbital architectures of Kepler systems having multiple planet candidates identified in the analysis of data from the first six quarters of Kepler data and reported by Batalha et al. (2013).
Agol, Eric   +21 more
core   +4 more sources

Probing the Rock Mass Fraction and Transport Efficiency inside Uranus Using 40Ar Measurements

open access: yesThe Planetary Science Journal
The bulk of Uranus consists of a rock–ice core, but the relative proportions of rock and ice are unknown. Radioactive decay of potassium in the silicates produces ^40 Ar.
Francis Nimmo   +3 more
doaj   +1 more source

Signatures of Planets in Spatially Unresolved Disks [PDF]

open access: yes, 2005
Main sequence stars are commonly surrounded by debris disks, composed of cold dust continuously replenished by a reservoir of undetected dust-producing planetesimals. In a planetary system with a belt of planetesimals (like the Solar System's Kuiper Belt)
Amaya Moro‐Martin   +11 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Salt Distribution from Freezing Intrusions in Ice Shells on Ocean Worlds: Application to Europa

open access: yesThe Planetary Science Journal, 2023
Several icy moons and dwarf planets appear to have hosted subsurface liquid water. Liquid water intruding upwards into the icy outer shells of these worlds freezes, forming ice and (from ocean solutes) non-ice solids.
Mariam Naseem   +5 more
doaj   +1 more source

A Comparison of the Interiors of Jupiter and Saturn

open access: yes, 1999
Interior models of Jupiter and Saturn are calculated and compared in the framework of the three-layer assumption, which rely on the perception that both planets consist of three globally homogeneous regions: a dense core, a metallic hydrogen envelope ...
Anders   +72 more
core   +1 more source

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