Results 91 to 100 of about 48,373 (195)

Baryon inhomogeneity generation via cosmic strings at QCD scale and its effects on nucleosynthesis

, 2002
We have earlier shown that cosmic strings moving through the plasma at the time of a first order quark-hadron transition in the early universe can generate large scale baryon inhomogeneities.
A. Heckler, A. Sornborger, A. Stebbins, Ajit M. Srivastava, B. Allen, B. Banerjee, B. Beinlich, B. Kampfer, B. Layek, Biswanath Layek, D. P. Bennett, D. V. Gal’tsov, E. Witten, G. M. Fuller, H. Kurki-Suonio, J. H. Applegate, J. Ignatius, J. Ignatius, J. R. Gott III, K. Jedamzik, K. Kainulainen, K. Kajantie, K. Kajantie, K. Sumiyoshi, L. Pogosian, M. B. Christiansen, N. Deruelle, S. A. Bonometto, Soma Sanyal, W. A. Hiscock, W. A. Hiscock   +30 more
core   +3 more sources

Nucleosynthesis and Gamma-Ray Line Spectroscopy with INTEGRAL

, 2011
Cosmic nucleosynthesis co-produces unstable isotopes, which emit characteristic gamma-ray emission lines upon their radioactive decay that can be measured with SPI on INTEGRAL.
Diehl, Roland
core  

Chemical evolution and kilonova implications of post-merger accretion disk winds

Astronomy & Astrophysics
Context. Several gamma-ray bursts (GRBs) have recently been associated with kilonova emission. We study the mechanisms that account for this effect by means of the radioactive decay of elements synthesized in accretion disk winds. Aims.
Janiuk Agnieszka, Saji Joseph, Urrutia Gerardo   +2 more
doaj   +1 more source

Coulomb screening in linear coasting nucleosynthesis

, 2015
We investigate the impact of coulomb screening on primordial nucleosynthesis in a universe having scale factor that evolves linearly with time. Coulomb screening affects primordial nucleosynthesis via enhancement of thermonuclear reaction rates.
Lohiya, Daksh, Singh, Parminder
core  

Do R Coronae Borealis Stars Form from Double White Dwarf Mergers?

, 2012
A leading formation scenario for R Coronae Borealis (RCB) stars invokes the merger of degenerate He and CO white dwarfs (WD) in a binary. The observed ratio of 16O/18O for RCB stars is in the range of 0.3-20 much smaller than the solar value of ~500.
Asplund, Athira Menon, Brown, Chandrasekhar, Chris L. Fryer, Clausen, Clayton, Clayton, Clayton, D'Souza, Driebe, Even, Falk Herwig, García-Hernandez, García-Hernandez, Geoffrey C. Clayton, Hema, Herwig, Iben, Jan. E. Staff, Joel E. Tohline, Kipper, Longland, Marco Pignatari, Motl, Motl, Motl, Paczyński, Pandey, Patrick M. Motl, Paxton, Rappaport, Raskin, Renzini, Saio, Segretain, Shen, Tom Geballe, Wesley Even   +38 more
core   +1 more source

Supernova neutrinos and nucleosynthesis

, 2013
Observations of metal-poor stars indicate that at least two different nucleosynthesis sites contribute to the production of r-process elements.
Fischer, T., Huther, L., Martínez-Pinedo, G.   +2 more
core   +1 more source

Neutrino Interactions in the Outflow from Gamma-Ray Burst Accretion Disks

, 2004
We examine the composition of matter as it flows away from gamma ray burst accretion disks, in order to determine what sort of nucleosynthesis may occur.
McLaughlin, G. C., Surman, R.
core   +1 more source

Structure effects of 20N in elemental abundance estimations during explosive nucleosynthesis [PDF]

EPJ Web of Conferences
Most nuclei far from the valley of stability, and typically near the drip lines, exhibit exotic features that have challenged our current understanding of nuclear structure.
Barman Jinti, Chatterjee Rajdeep
doaj   +1 more source

The Physics of Core-Collapse Supernovae: Explosion Mechanism and Explosive Nucleosynthesis

Universe
Recent developments in multi-dimensional simulations of core-collapse supernovae have considerably improved our understanding of this complex phenomenon.
Luca Boccioli, Lorenzo Roberti
doaj   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page i-xlii, August 2024.
wiley   +2 more sources