Results 101 to 110 of about 52,754 (240)

Machine learning opportunities for nucleosynthesis studies

Frontiers in Astronomy and Space Sciences
Nuclear astrophysics is an interdisciplinary field focused on exploring the impact of nuclear physics on the evolution and explosions of stars and the cosmic creation of the elements.
Michael S. Smith, Dan Lu
doaj   +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

Nucleosynthesis Around Black Holes [PDF]

, 1999
Study of nucleosynthesis in accretion disks around black holes was initiated by Chakrabarti et al. (1987). In the present work we do the similar analysis using the state-of-the-art disk model, namely, Advective Accretion Disks.
Mukhopadhyay, Banibrata
core   +1 more source

Neutrinos in Astrophysics and Cosmology

, 2016
Neutrinos play a crucial role in many aspects of astrophysics and cosmology. Since they control the electron fraction, or equivalently neutron-to-proton ratio, neutrino properties impact yields of r-process nucleosynthesis.
Balantekin, A. B.
core   +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

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  

86th Annual Meeting of the Meteoritical Society (2024)

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

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

The heavy-element abundances of AGB stars and the angular momentum conservation model of wind accretion for barium stars [PDF]

, 2000
Adpoting new s-process nucleosynthesis scenario and branch s-process path, we calculate the heavy-element abundances and C/O ratio of solar metallicity 3M_sun TP-AGB stars.
Liang, Y. C., Zhang, B., Zhao, G.
core   +1 more source

Nucleosynthesis in advective disc and outflow: possible explanation for overabundances in winds from X-ray binaries

, 2019
Multiple spectroscopic lines of different elements observed in winds from X-ray binaries (XRBs), based on one zone model, indicate super-solar abundance of elements, e.g. Mg, Si, S, Ar, Ca, Cr, Mn, Co.
Datta, Sudeb Ranjan, Mukhopadhyay, Banibrata   +1 more
core   +1 more source