Results 51 to 60 of about 24,208 (239)

Outstanding problems in nuclear astrophysics: recent progress at TRIUMF

AIP Advances, 2014
Recent experimental and theoretical efforts at TRIUMF on nuclear reactions relevant to big bang nucleosynthesis, quiescent stellar fusion, classical novae, and Type I X-ray bursts are described.
B. Davids
doaj   +1 more source

Evolution Of Galaxies .2. Chemical Evolution Coefficients [PDF]

, 1973
NSF GP-18355, GP ...
Arnett, W. David, Talbot, Raymond. J.
core   +1 more source

Stellar Evolution and Convection in 3D Hydrodynamic Simulations of a Complete Burning Phase

Galaxies
Our understanding of stellar evolution and nucleosynthesis is limited by the uncertainties coming from the complex multi-dimensional processes in stellar interiors, such as convection and nuclear burning. Three-dimensional stellar models can improve this
Federico Rizzuti, Raphael Hirschi, Vishnu Varma, William David Arnett, Cyril Georgy, Casey Meakin, Miroslav Mocák, Alexander StJ. Murphy, Thomas Rauscher   +8 more
doaj   +1 more source

Explosive Nucleosynthesis: What we learned and what we still do not understand

, 2018
This review touches on historical aspects, going back to the early days of nuclear astrophysics, initiated by B$^2$FH and Cameron, discusses (i) the required nuclear input from reaction rates and decay properties up to the nuclear equation of state ...
A Arcones, A Burrows, A Burrows, A Heger, A Khokhlov, A Perego, A Sobiczewski, AB McDonald, AGW Cameron, AGW Cameron, AL Sallaska, B Côté, B Paxton, B Wehmeyer, BS Meyer, C Angulo, C Georgy, C Iliadis, C Kobayashi, C Li, C Sneden, C Winteler, D Argast, D Bodansky, D Eichler, D Maoz, DA Goldstein, E Müller, EM Burbidge, F Hoyle, F Käppeler, F Matteucci, F Voort van de, F-K Thielemann, F-K Thielemann, F-K Thielemann, F-K Thielemann, FX Timmes, FX Timmes, G Cescutti, G Halevi, G Martínez-Pinedo, G Michaud, G Michaud, GM Fuller, GR Caughlan, H-T Janka, H-T Janka, HA Bethe, I Dillmann, I Iben Jr, I Iben Jr, I Petermann, IU Roederer, IV Panov, J Lippuner, J Pruet, JA Holmes, JA Morgan, JC Wheeler, JJ Cowan, JM Lattimer, JW Truran, JW Truran, JW Truran, JW Truran, JW Truran, K Farouqi, K Langanke, K Nakamura, K Nomoto, K Nomoto, K Nomoto, K Nomoto, K Nomoto, K Takahashi, K-C Pan, K-L Kratz, LF Roberts, M Arnould, M Arnould, M Arnould, M Arnould, M Eichler, M Limongi, M Oertel, M Ruffert, M Ugliano, M Zingale, MB Davies, N Nishimura, N Nishimura, P Hoeflich, P Möller, P Mösta, P Mösta, R Longland, RF Webbink, RH Cyburt, RJ deBoer, RM Cabezón, S Goriely, S Goriely, S Nishimura, S Rosswog, S Shen, S Wanajo, S-C Leung, S-I Fujimoto, SE Woosley, SE Woosley, SE Woosley, SE Woosley, SE Woosley, T Ertl, T Foglizzo, T Kuroda, T Marketin, T Mishenina, T Rauscher, T Rauscher, T Rauscher, T Sukhbold, T Tsujimoto, T Yoshida, TA Weaver, TT Hansen, UM Noebauer, WA Fowler, WA Fowler, WA Fowler, WD Arnett, WD Arnett, WD Arnett, WD Arnett, WD Arnett, WM Howard, WR Hix, Y Hirai, Y Xu, ZY Bao, ZY Bao   +141 more
core   +1 more source

Uncertainties in AGB Evolution and Nucleosynthesis

, 2016
We summarise the evolution and nucleosynthesis in AGB and Super-AGB stars. We then examine the major sources of uncertainty, especially mass-loss.Comment: 8 pages, no figures.
Karakas, Amanda, Lattanzio, John
core   +1 more source

Improved astrophysical rate for the 18O(p,α)15N reaction by underground measurements

Physics Letters B, 2019
The 18O(p,α)15N reaction affects the synthesis of 15N, 18O and 19F isotopes, whose abundances can be used to probe the nucleosynthesis and mixing processes occurring deep inside asymptotic giant branch (AGB) stars.
C.G. Bruno, M. Aliotta, P. Descouvemont, A. Best, T. Davinson, D. Bemmerer, A. Boeltzig, C. Broggini, A. Caciolli, F. Cavanna, T. Chillery, G.F. Ciani, P. Corvisiero, R. Depalo, A. Di Leva, Z. Elekes, F. Ferraro, A. Formicola, Zs. Fülöp, G. Gervino, A. Guglielmetti, C. Gustavino, Gy. Gyürky, G. Imbriani, M. Junker, M. Lugaro, P. Marigo, R. Menegazzo, V. Mossa, F.R. Pantaleo, D. Piatti, P. Prati, K. Stöckel, O. Straniero, F. Strieder, T. Szücs, M.P. Takács, D. Trezzi   +37 more
doaj   +1 more source

The s-process weak component: uncertainties due to convective overshooting

, 2005
Using a new s-nucleosynthesis code, coupled with the stellar evolution code Star2003, we performed simulations to study the impact of the convection treatment on the s-process during core He-burning of a 25 Msun star (ZAMS mass) with an initial ...
A. Bonanno, Alexander, Anders, Angulo, Arcoragi, Arnould, Blöcker, Bonanno, Busso, Busso, Caughlan, Costa, Costa, Freytag, Gallino, Goriely, Goriely, Hoffman, Iglesias, Jaeger, Koehler, Käppeler, Langer, Lugaro, M. L. Pumo, Marigo, Meynet, Nomoto, Peters, Prantzos, Prantzos, R. A. Zappalà, Raiteri, Rayet, Rayet, Rayet, Rogers, Salasnich, Schlattl, The, Timmes, V. Costa, Van Eck, Wagoner, Weiss, Woosley, Young   +46 more
core   +1 more source

Statistical Methods for Thermonuclear Reaction Rates and Nucleosynthesis Simulations [PDF]

, 2014
Rigorous statistical methods for estimating thermonuclear reaction rates and nucleosynthesis are becoming increasingly established in nuclear astrophysics.
Champagne, Art E., Coc, Alain, Iliadis, Christian, Longland, Richard, Timmes, F. X.   +4 more
core   +7 more sources

The early phases of Milky Way's chemical evolution [PDF]

, 2004
The earliest phases of the chemical evolution of our Galaxy are analysed in the light of the recent VLT results (concerning abundance patterns in the most metal-poor stars of the Galactic halo) and of stellar nucleosynthesis calculations.
Argast, Carretta, Cayrel, Chieffi, Francois, Frohlich, Glover, Goswami, Heger, Ishimaru, Iwamoto, Karlsson, Kogut, Kroupa, Maeda, McWilliam, Meynet, Meynet, N. Prantzos, Nakamura, Nakamura, Nakamura, Prantzos, Primas, Ricotti, Ryan, Salvaterra, Schaerer, Sokasian, Spite, Truran, Tsujimoto, Tumlinson, Umeda, van den Hoek, Woosley, Yoshida   +36 more
core   +2 more sources

Observation of interstellar lithium in the low-metallicity Small Magellanic Cloud

, 2012
The primordial abundances of light elements produced in the standard theory of Big Bang nucleosynthesis (BBN) depend only on the cosmic ratio of baryons to photons, a quantity inferred from observations of the microwave background.
AJ Korn, BD Fields, Brian D. Fields, D Romano, DC Knauth, DE Welty, DE Welty, DE Welty, DL Lambert, F Iocco, G Steigman, G Steigman, Grant J. Mathews, H Dekker, J Dunkley, J Meléndez, J. Christopher Howk, JC Weingartner, K Jedamzik, L Sbordone, M Asplund, M Pospelov, M Spite, N Prantzos, Nicolas Lehner, NLJ Cox, RH Cyburt, S Kawanomoto, SIB Cartledge, T Prodanović, TK Suzuki   +30 more
core   +1 more source