Results 41 to 50 of about 48,373 (195)

Direct reactions for astrophysical p-capture rates with ORRUBA and GODDESS

Frontiers in Physics
Understanding the nucleosynthesis and energy generation in quiescent and explosive stellar burning requires a detailed understanding of reaction rates on many unstable nuclides.
S. D. Pain
doaj   +1 more source

Insights into AGB Nucleosynthesis Thanks to Spectroscopic Abundance Measurements in Intrinsic and Extrinsic Stars

Universe, 2022
The foundations of stellar nucleosynthesis have been established more than 70 years ago. Since then, much progress has been made, both on the theoretical side, with stellar evolution and nucleosynthesis models of increasing complexity, using more and ...
Sophie Van Eck, Shreeya Shetye, Lionel Siess   +2 more
doaj   +1 more source

Nucleosynthesis of $^{92}$Nb and the relevance of the low-lying isomer at 135.5 keV [PDF]

, 2016
Background: Because of its half-life of about 35 million years, 92Nb is considered as a chronometer for nucleosynthesis events prior to the birth of our sun. The abundance of 92Nb in the early solar system can be derived from meteoritic data.
Mohr, Peter
core   +2 more sources

Laboratory Magnetoplasmas as Stellar-like Environment for ⁷Be β-Decay Investigations Within the PANDORA Project

Universe
Laboratory magnetoplasmas can become an intriguing experimental environment for fundamental studies relevant to nuclear astrophysics processes. Theoretical predictions indicate that the ionization state of isotopes within the plasma can significantly ...
Eugenia Naselli, Bharat Mishra, Angelo Pidatella, Alessio Galatà, Giorgio S. Mauro, Domenico Santonocito, Giuseppe Torrisi, David Mascali   +7 more
doaj   +1 more source

Kilonova Emission and Heavy Element Nucleosynthesis

Universe, 2023
The binary neutron star merger observed and localized on 17 August 2017 by the LIGO and Virgo gravitational interferometers and by numerous telescopes on the ground and in orbit linked in an unambiguous way the coalescence of double neutron stars with ...
Elena Pian
doaj   +1 more source

Explosive Nucleosynthesis of Weak r-Process Elements in Extremely Metal-Poor Core-Collapse Supernovae

, 2008
There have been attempts to fit the abundance patterns of extremely metal-poor stars with supernova nucleosynthesis models for the lighter elements than Zn. On the other hand, observations have revealed that the presence of EMP stars with peculiarly high
Aoki, Chieffi, Frölich, Heger, Heger, Hideyuki Umeda, Honda, Honda, Iwamoto, Maeda, Nagataki, Natsuko Izutani, Nozomu Tominaga, Popham, Pruet, Pruet, Pruet, Pruet, Qian, Sneden, Sneden, Tominaga, Tominaga, Travaglio, Umeda, Umeda, Wanajo, Wanajo, Yoshida   +28 more
core   +1 more source

Properties and Composition of Magnetized Nuclei

Particles, 2020
The properties and mass distribution of the ultramagnetized atomic nuclei which arise in heavy-ion collisions and magnetar crusts, during Type II supernova explosions and neutron star mergers are analyzed.
V.N. Kondratyev
doaj   +1 more source

Non-universal scalar-tensor theories and big bang nucleosynthesis [PDF]

, 2008
We investigate the constraints that can be set from big-bang nucleosynthesis on two classes of models: extended quintessence and scalar-tensor theories of gravity in which the equivalence principle between standard matter and dark matter is violated.
Alain Coc, B. D. Fields, C. Will, C. M. Will, Elisabeth Vangioni, I. I. Shapiro, J.-P. Uzan, J. D. Barrow, J. D. Barrow, Jean-Philippe Uzan, K. Arai, Keith A. Olive, M. Fierz   +12 more
core   +3 more sources

Primordial Nucleosynthesis: Theory and Observations [PDF]

, 1999
We review the Cosmology and Physics underlying Primordial Nucleosynthesis and survey current observational data in order to compare the predictions of Big Bang Nucleosynthesis with the inferred primordial abundances. From this comparison we report on the
Burles, Burles, Dearborn, Deliyannis, Dicus, Dodelson, Epstein, Fields, Fields, Fields, Fields, Fields, Fiorentini, Fixsen, Fukugita, Galli, Galli, Gary Steigman, Hata, Heckler, Hubble, Izotov, Kawasaki, Keith A Olive, Kolb, Krishnamurthi, Levshakov, Levshakov, Levshakov, Linsky, Lopez, Lopez, Mahaffy, Olive, Olive, Olive, Olive, Olive, Pagel, Penzias, Persic, Reeves, Rood, Sarkar, Scully, Skillman, Smith, Smoot, Songaila, Steigman, Steigman, Steigman, Steigman, Terry P Walker, Thomas, Thorburn, Tosi, Vidal-Madjar, Wagoner, Walker, Webb, Yang, Yang   +62 more
core   +2 more sources

Constraining neutrino physics with BBN and CMBR [PDF]

, 2001
We perform a likelihood analysis of the recent results on the anisotropy of Cosmic Microwave Background Radiation from the BOOMERanG and DASI experiments to show that they single out an effective number of neutrinos in good agreement with standard Big ...
Hansen, S. H., Mangano, G., Melchiorri, A., Miele, G., Pisanti, O.   +4 more
core   +2 more sources