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15 relations: Abundance of the chemical elements, Astrochemistry, Astrophysics, Cayrel's Star, EDP Sciences, Galactic halo, Geochronology, Metallicity, Milky Way, Nucleosynthesis, R-process, Radionuclide, Stable nuclide, Sun, Thin disk.
Abundance of the chemical elements
The abundance of the chemical elements is a measure of the occurrence of the chemical elements relative to all other elements in a given environment.
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Astrochemistry
Astrochemistry is the study of the abundance and reactions of molecules in the Universe, and their interaction with radiation.
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Astrophysics
Astrophysics is the branch of astronomy that employs the principles of physics and chemistry "to ascertain the nature of the astronomical objects, rather than their positions or motions in space".
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Cayrel's Star
BPS CS31082-0001, named Cayrel's Star, is an old Population II star located in a distance of 4 kpc in the Galactic Halo.
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EDP Sciences
EDP Sciences, Édition Diffusion Presse Sciences, is an STM publisher that works closely with the scientific world.
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Galactic halo
A galactic halo is an extended, roughly spherical component of a galaxy which extends beyond the main, visible component.
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Geochronology
Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves.
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Metallicity
In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.
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Milky Way
The Milky Way is the galaxy that contains our Solar System.
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Nucleosynthesis
Nucleosynthesis is the process that creates new atomic nuclei from pre-existing nucleons, primarily protons and neutrons.
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R-process
The rapid neutron-capture process, or so-called r-process, is a set of nuclear reactions that in nuclear astrophysics is responsible for the creation (nucleosynthesis) of approximately half the abundances of the atomic nuclei heavier than iron, usually synthesizing the entire abundance of the two most neutron-rich stable isotopes of each heavy element.
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Radionuclide
A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.
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Stable nuclide
Stable nuclides are nuclides that are not radioactive and so (unlike radionuclides) do not spontaneously undergo radioactive decay.
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Sun
The Sun is the star at the center of the Solar System.
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Thin disk
The thin disk is a structural component of spiral and S0-type galaxies, composing of stars, gas and dust.
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