Precision big bang nucleosynthesis with improved Helium-4 predictions
Sign Up to like & getrecommendations! Published in 2018 at "Physics Reports"
DOI: 10.1016/j.physrep.2018.04.005
Abstract: Primordial nucleosynthesis is one of the three historical evidences for the big bang model, together with the expansion of the universe and the cosmic microwave background. Now that the number of neutrino families and the… read more here.
Keywords: big bang; precision big; physics; nucleosynthesis ... See more keywords
Nucleosynthesis in Advection-Dominated Accretion Flow onto a Black Hole
Sign Up to like & getrecommendations! Published in 2017 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/34/4/049701
Abstract: Nucleosynthesis in advection-dominated accretion flow (ADAF) onto a black hole is proposed to be an important role in chemical evolution around compact stars. We investigate the nucleosynthesis in ADAF relevant for a black hole of… read more here.
Keywords: black hole; nucleosynthesis advection; advection dominated; nucleosynthesis ... See more keywords
3D1D hydro-nucleosynthesis simulations – I. Advective–reactive post-processing method and its application to H ingestion into He-shell flash convection in rapidly accreting white dwarfs
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab500
Abstract: We present two mixing models for post-processing of 3D hydrodynamic simulations applied to convective-reactive i-process nucleosynthesis in a rapidly accreting white dwarf (RAWD) with $\mathrm{[Fe/H]} = -2.6$, in which H is ingested into a convective… read more here.
Keywords: post processing; rapidly accreting; nucleosynthesis; simulations advective ... See more keywords
Signatures of hypermassive neutron star lifetimes on r-process nucleosynthesis in the disc ejecta from neutron star mergers
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1987
Abstract: We investigate the nucleosynthesis of heavy elements in the winds ejected by accretion discs formed in neutron star mergers. We compute the element formation in disc outflows from hypermassive neutron star (HMNS) remnants of variable… read more here.
Keywords: star; nucleosynthesis; neutron star; hmns ... See more keywords
NuGrid stellar data set – III. Updated low-mass AGB models and s-process nucleosynthesis with metallicities Z= 0.01, Z = 0.02, and Z = 0.03
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz2158
Abstract: The production of the neutron-capture isotopes beyond iron that we observe today in the Solar system is the result of the combined contribution of the r-process, the s-process, and possibly the i-process. Low-mass asymptotic giant… read more here.
Keywords: mass agb; nucleosynthesis; agb; low mass ... See more keywords
Pop III i-process nucleosynthesis and the elemental abundances of SMSS J0313-6708 and the most iron-poor stars
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnrasl/slx190
Abstract: © 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. We have investigated a highly energetic H-ingestion event during shell He burning leading to H-burning luminosities of log (L… read more here.
Keywords: poor stars; pop iii; nucleosynthesis; process ... See more keywords
Activation thick target yield measurement of Mo100(α,n)Ru103 for studying the weak r -process nucleosynthesis
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review C"
DOI: 10.1103/physrevc.104.035804
Abstract: Background: Light ($30\ensuremath{\le}Z\ensuremath{\le}45$) neutron-rich isotopes are thought to be synthesized in the neutrino-driven ejecta of core-collapse supernovae explosions via the weak $r$ process. Recent nucleosynthesis studies have demonstrated that $(\ensuremath{\alpha},xn)$ reactions play a particularly important… read more here.
Keywords: nucleosynthesis; weak process; ensuremath; ensuremath alpha ... See more keywords
Limits on Supernova-Associated ^{60}Fe/^{26}Al Nucleosynthesis Ratios from Accelerator Mass Spectrometry Measurements of Deep-Sea Sediments.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.221103
Abstract: We searched for the presence of ^{26}Al in deep-sea sediments as a signature of supernova influx. Our data show an exponential dependence of ^{26}Al with the sample age that is fully compatible with radioactive decay… read more here.
Keywords: deep sea; limits supernova; nucleosynthesis; supernova associated ... See more keywords
Formation of Superheavy Elements in Nature
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Atomic Nuclei"
DOI: 10.1134/s1063778818010167
Abstract: It is shown that superheavy elements may also be formed in the main r process responsible for the formation of the heaviest elements observed in nature. Under conditions of a high neutron density, the nucleosynthesis… read more here.
Keywords: elements nature; formation superheavy; formation; nucleosynthesis ... See more keywords