Results 101 to 110 of about 23,934 (219)

Heavy Element Nucleosynthesis

EPJ Web of Conferences, 2018
This contribution deals with the important subject of the nucleosynthesis of heavy elements in the Galaxy. After an overview of several observational features, the physical processes responsible mainly for the formation of heavy elements will be ...
El Eid Mounib F.
doaj   +1 more source

Re-examining Neutron Capture and Stellar Weak Rates of 97Mo under Astrophysical Conditions

Cumhuriyet Science Journal
This paper presents a re-analysis of neutron capture and stellar weak interaction rates of 97Mo under astrophysical conditions. The Maxwellian-averaged cross sections (MACS), neutron capture rates, and β^- decay/positron capture rates are investigated ...
Jameel-un Nabi, Abdul Kabir, Abdul Muneem   +2 more
doaj   +1 more source

Studying stars by going underground: the LUNA experiment at Gran Sasso Laboratory

EPJ Web of Conferences, 2014
Cross sections of astrophysically relevant reactions are essential ingredients for element nucleosynthesis, energy generation and neutrino fluxes in stellar environments.
Guglielmetti Alessandra
doaj   +1 more source

Stellar abundances and nucleosynthesis

, 2016
Stellar abundances are essential parameters for many branches of astronomy. They are also particularly important as tests for theories of nucleosynthesis. Despite the encouraging results from band photometry, detailed spectroscopic analyses are still important in furthering knowledge of physical processes occurring in a variety of stellar objects. This
Ellis, R, Ellis, Richard S.
openaire   +1 more source

Direct study of the 21Ne(p,γ)22Na reaction deep underground at LUNA [PDF]

EPJ Web of Conferences
The 21Ne(p,γ)22Na reaction is part of the NeNa cycle, which contributes to hydrogen burning and nucleosynthesis in various stellar environments. The major astrophysical impact of this reaction is the production of the unstable nucleus of 22Na, recognized
Sidhu Ragandeep Singh
doaj   +1 more source

The chemical evolution of Manganese in different stellar systems

, 2008
Aims. To model the chemical evolution of manganese relative to iron in three different stellar systems: the solar neighbourhood, the Galactic bulge and the Sagittarius dwarf spheroidal galaxy, and compare our results with the recent and homogeneous ...
Cescutti, G., Lanfranchi, G. A., Matteucci, F., McWilliam, A.   +3 more
core   +1 more source

The β-decay rates of 59Fe isotopes in shell burning environments and their influences on the production of 60Fe in massive star

EPJ Web of Conferences, 2016
The experimental B(GT) strengths of the 59Fe excited states were employed to determine the transition strengths which greatly contribute 59Fe stellar β–decay at typical carbon shell burning temperature.
Li K., Lam Y.H., Qi C., Tang X., Zhang N.   +4 more
doaj   +1 more source

Metal-enriched Pair-instability Supernovae: Effects of Rotation

The Astrophysical Journal
In this paper, we revisit metal-enriched rotating pair-instability supernovae (PISNe) models for metallicities consistent with the Small Magellanic Cloud, the Large Magellanic Cloud (LMC), and 0.1 Z _⊙ .
Hideyuki Umeda, Chris Nagele
doaj   +1 more source

Evolution and Nucleosynthesis of Very Massive Stars

, 2014
In this chapter, after a brief introduction and overview of stellar evolution, we discuss the evolution and nucleosynthesis of very massive stars (VMS: M>100 solar masses) in the context of recent stellar evolution model calculations. This chapter covers
A. Burrows, A. Chieffi, A. Chieffi, A. Heger, A. Heger, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Maeder, A. Sander, A. Stacy, A. T. Potter, B. Chaboyer, B. Paxton, C. D. Ott, C. Georgy, C. Georgy, C. Georgy, C. Jager de, C. Jager de, C. L. Fryer, D. F. Figer, E. Chatzopoulos, E. E. Salpeter, E. Knobloch, E. O’Connor, F. R. N. Schneider, G. Gräfener, G. Meynet, G. Meynet, G. Meynet, H. C. Spruit, H. Umeda, H. Zeipel von, J. Braithwaite, J. C. Wheeler, J. J. Eldridge, J. J. Eldridge, J. Krtička, J. R. Bond, J. S. Vink, J. T. Loon van, J. Zahn, J.-P. Zahn, K. Fricke, L. Dessart, L. Dessart, L. E. Muijres, M. Brüggen, M. E. Bennett, M. S. Oey, N. Christlieb, N. Langer, N. Yusof, P. A. Crowther, P. Eggenberger, P. Goldreich, R. Hirschi, R. Hirschi, R. Hirschi, R. Hirschi, R. Hirschi, R. J. Sylvester, R. Kippenhahn, R. Kippenhahn, R. Walder, S. E. Woosley, S. E. Woosley, S. Ekström, S. Ekström, S.-C. Yoon, S.-C. Yoon, S.-C. Yoon, T. Abel, T. H. Greif, T. Yoshida, U. Frischknecht, V. Bromm, V. M. Canuto, W.-R. Hamann   +84 more
core   +1 more source

Stellar Nucleosynthesis Nuclear Data Mining

, 2012
Stellar nucleosynthesis is an important nuclear physics phenomenon that is responsible for presently observed chemical elements and isotope abundances. It is also one of the corner stone hypotheses that provides basis for our understanding of Nature. Its theoretical predictions are often verified through the astrophysical observation and comparison of ...
openaire   +4 more sources