Results 61 to 70 of about 52,754 (240)

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

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

Astrophysics and Space Science, 1999
The current of status of big bang nucleosynthesis is reviewed and the concordance between theory and observation is examined in detail. It is argued that when using the observational data on he4 and li7, the two isotopes whose abundances are least affected by chemical and stellar evolution, both are completely consistent with BBN theory.
openaire   +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

Can We Draw Conclusions on Supernova Shock Wave Propagation Using Short‐Lived Radioactive Isotopes?

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT We run a three‐dimensional Galactic chemical evolution (GCE) model to follow the propagation of 53Mn (exclusively produced from type Ia supernovae, SNIa), 60Fe (exclusively produced from core‐collapse supernovae, CCSNe), 182Hf (exclusively produced from intermediate mass stars, IMSs), and 244Pu (exclusively produced from neutron star mergers ...
Benjamin Wehmeyer, Andrés Yagüe López, Benoit Côté, Maria K. Petö, Chiaki Kobayashi, Maria Lugaro   +5 more
wiley   +1 more source

Upper limit to $\Omega_B$ in scalar-tensor gravity theories

, 1997
In a previous paper (Serna & Alimi 1996), we have pointed out the existence of some particular scalar-tensor gravity theories able to relax the nucleosynthesis constraint on the cosmic baryonic density.
Arai K., Arturo Serna, Jean‐Michel Alimi, Jordan P., Serna A., Wesson P. S.   +5 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

Methyltransferase‐Like 3‐Mediated N6‐Methyladenosine Modification on RNAs: A Novel Perspective for the Pathogenesis and Treatment of Bone Diseases

Journal of Cellular and Molecular Medicine, Volume 29, Issue 5, March 2025.
ABSTRACT Osteoarthritis, osteoporosis, and osteosarcoma are prevalent osseous pathologies associated with the aberrant functionality of chondrocytes, osteoclasts, and osteoblasts, respectively. These conditions frequently exhibit therapeutic resistance and possess a high mortality risk, thus representing substantial health threats.
Dongqiong Xiao, Deshuang Zhang, Yi Qu, Xiaojuan Su   +3 more
wiley   +1 more source

Big Bang Nucleosynthesis Constraints on f (T, T_G) Gravity

Universe, 2022
We confront f(T,TG) gravity, with big bang nucleosynthesis (BBN) requirements. The former is obtained using both the torsion scalar, as well as the teleparallel equivalent of the Gauss–Bonnet term, in the Lagrangian, resulting to modified Friedmann ...
Petros Asimakis, Emmanuel N. Saridakis, Spyros Basilakos, Kuralay Yesmakhanova   +3 more
doaj   +1 more source