Results 51 to 60 of about 86,516 (190)

Elemental ratios in stars vs planets

open access: yes, 2015
Context. The chemical composition of planets is an important constraint for planet formation and subsequent differentiation. While theoretical studies try to derive the compositions of planets from planet formation models in order to link the composition
Alibert, Yann   +4 more
core   +1 more source

Gravitational Wave (GW) Classification, Space GW Detection Sensitivities and AMIGO (Astrodynamical Middle-frequency Interferometric GW Observatory) [PDF]

open access: yes, 2017
After first reviewing the gravitational wave (GW) spectral classification. we discuss the sensitivities of GW detection in space aimed at low frequency band (100 nHz-100 mHz) and middle frequency band (100 mHz-10 Hz).
Ni, Wei-Tou
core   +3 more sources

Planet Populations as a Function of Stellar Properties

open access: yes, 2018
Exoplanets around different types of stars provide a window into the diverse environments in which planets form. This chapter describes the observed relations between exoplanet populations and stellar properties and how they connect to planet formation ...
A Cumming   +147 more
core   +1 more source

Microtextures and structures in metal–sulfide grains in NWA 869 meteorite and their relation to thermal history of L‐chondrite parent body

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 616-631, March 2025.
Abstract Results of microanalysis study of NWA 869 meteorite, an ordinary chondrite, where silicates, Fe‐Ni alloys, and troilite are major constituents, are reported. The presented study of microtextures in metallic and sulfide grains provides information on processes occurring from the asteroid's accretion, through the impacts until cooling.
Paulina Skirak   +4 more
wiley   +1 more source

Selected topics in the evolution of low-mass stars

open access: yes, 2012
Low-mass stars play a key role in many different areas of astrophysics. In this article, I provide a brief overview of the evolution of low-mass stars, and discuss some of the uncertainties and problems currently affecting low-mass stellar models ...
Catelan, M.
core   +2 more sources

Oued Chebeika 002: A new CI1 meteorite linked to outer solar system bodies

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract CI1 chondrites are rare meteorites with high scientific value. In fact, they are the most chemically primitive meteorites and show evidence of intense parent‐body aqueous alteration. They also share strong similarities with samples from Ryugu and Bennu asteroids returned by the JAXA Hayabusa2 and NASA's OSIRIS‐REx missions.
J. Gattacceca   +26 more
wiley   +1 more source

A Stellar Model-fitting Pipeline for Solar-like Oscillations

open access: yes, 2009
Over the past two decades, helioseismology has revolutionized our understanding of the interior structure and dynamics of the Sun. Asteroseismology will soon place this knowledge into a broader context by providing structural data for hundreds of Sun ...
J. Christensen-Dalsgaard   +4 more
core   +1 more source

The s-process nucleosynthesis in massive stars: current status and uncertainties due to convective overshooting [PDF]

open access: yes, 2012
Context: It is well known that the so-called s-process is responsible for the production of neutron-rich trans-iron elements, that form the bulk of the "heavy nuclides" (i.e.
Pumo, M. L.
core   +3 more sources

Silicate–sulfide interaction within quenched melts of space weathered Ryugu grains

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The first few microns of the surface of airless bodies are subject to severe changes due to the harsh environment of space, known as space weathering. The Hayabusa2 sample return mission from the asteroid Ryugu provides the first opportunity to study these effects on a carbonaceous and hydrated body.
Sylvain Laforet   +9 more
wiley   +1 more source

Improving 1D Stellar Models with 3D Atmospheres [PDF]

open access: yes, 2016
Stellar evolution codes play a major role in present-day astrophysics, yet they share common issues. In this work we seek to remedy some of those by the use of results from realistic and highly detailed 3D hydrodynamical simulations of stellar ...
Aguirre, Victor Silva   +4 more
core   +1 more source

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