Results 221 to 230 of about 52,014 (259)
One month convection timescale on the surface of a giant evolved star. [PDF]
Vlemmings W+4 more
europepmc +1 more source
Uncovering the integral spectral characteristics of the planetary nebula IC 4642. [PDF]
Mohery M+4 more
europepmc +1 more source
Challenges to the [Formula: see text]CDM cosmology. [PDF]
Efstathiou G.
europepmc +1 more source
Heavy-element production in a compact object merger observed by JWST. [PDF]
Levan AJ+84 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Supernovae and their Nucleosynthesis
Encyclopedia of Nuclear Physics and its Applications, 2013Supernovae belong to the most powerful explosions in galaxies (only γ-ray bursts seem to be more energetic). They are also the dominant sources of the elements in the Universe, as the Big Bang led only to the formation of H, He, and Li. Heavier elements (in astronomical terms, metals) are to some extent due to stellar winds, which contribute to C, N, O,
Thielemann, F. -K., Liebendörfer, M.
openaire +2 more sources
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1986
Both Big-Bang and stellar nucleosynthesis have outcomes related to the density of baryonic matter, but whereas in the first case there is a standard model that makes very precise predictions of light element abundances as a function of the mean density of baryons in the Universe, in the second case various uncertainties permit only very ...
B. E. J. Pagel, R. J. Tayler
openaire +2 more sources
Both Big-Bang and stellar nucleosynthesis have outcomes related to the density of baryonic matter, but whereas in the first case there is a standard model that makes very precise predictions of light element abundances as a function of the mean density of baryons in the Universe, in the second case various uncertainties permit only very ...
B. E. J. Pagel, R. J. Tayler
openaire +2 more sources
Space Science Reviews, 1973
A review is presented of current theories of nucleosynthesis. The predicted contributions from (1) cosmological nucleosynthesis, (2) super-massive stars, (3) non-violent (quasi-static) stellar evolution, (4) supernova explosions, (5) cosmic ray interactions with the interstellar medium and (6) nova explosions to the observed solar system abundances are
openaire +2 more sources
A review is presented of current theories of nucleosynthesis. The predicted contributions from (1) cosmological nucleosynthesis, (2) super-massive stars, (3) non-violent (quasi-static) stellar evolution, (4) supernova explosions, (5) cosmic ray interactions with the interstellar medium and (6) nova explosions to the observed solar system abundances are
openaire +2 more sources
The European Physical Journal A, 2016
Big Bang nucleosynthesis (BBN) describes the production of light nuclei in the early phases of the Universe. For this, precise knowledge of the cosmological parameters, such as the baryon density, as well as the cross section of the fusion reactions involved are needed.
Gustavino, C.+4 more
openaire +2 more sources
Big Bang nucleosynthesis (BBN) describes the production of light nuclei in the early phases of the Universe. For this, precise knowledge of the cosmological parameters, such as the baryon density, as well as the cross section of the fusion reactions involved are needed.
Gustavino, C.+4 more
openaire +2 more sources
Transactions of the International Astronomical Union, 1988
Primordial nucleosynthesis which is responsible for the formation of the lightest elements (D, 3He, 4HE and 7Li) might be as important as the overall expansion of the Universe and the cosmic background radiation to prove the occurrence of a dense and hot phase for the Unvierse about 15 billion years ago. As recalled in many reviews (e.g. refs.
openaire +2 more sources
Primordial nucleosynthesis which is responsible for the formation of the lightest elements (D, 3He, 4HE and 7Li) might be as important as the overall expansion of the Universe and the cosmic background radiation to prove the occurrence of a dense and hot phase for the Unvierse about 15 billion years ago. As recalled in many reviews (e.g. refs.
openaire +2 more sources
An Introduction to Primordial Nucleosynthesis [PDF]
Primordial nucleosynthesis is one of the three observational evidences for the Big Bang model. Even though they span a range of nine orders of magnitude, there is indeed a good overall agreement between primordial abundances of ^4He, D, ^3He and 7Li either deduced from observation or primordial nucleosynthesis.
openaire +2 more sources