Results 21 to 30 of about 3,422,985 (329)

Stripping Model for Short GRBs: The Impact of Nuclear Data

Particles, 2023
We investigate the impact of forthcoming nuclear data on the predictions of the neutron star (NS) stripping model for short gamma-ray bursts. The main area to which we pay attention is the NS crust.
Andrey Yudin, Nikita Kramarev, Igor Panov, Anton Ignatovskiy   +3 more
doaj   +1 more source

R-process enrichment from a single event in an ancient dwarf galaxy [PDF]

, 2015
Elements heavier than zinc are synthesized through the (r)apid and (s)low neutron-capture processes. The main site of production of the r-process elements (such as europium) has been debated for nearly 60 years.
A Dotter, A Frebel, A Frebel, A Frebel, A Frebel, A Wallner, AP Ji, AP Ji, AW McConnachie, B Wehmeyer, C Sneden, C Sneden, D Argast, DD Kelson, DL Burris, EM Burbidge, EN Kirby, EN Kirby, F Van de Voort, II Ivans, IU Roederer, J Abadie, J Bland-Hawthorn, JD Simon, K Bechtol, M Asplund, M Dominik, MC Geha, MG Walker, NR Tanvir, R Bernstein, S Goriely, S Shen, S Wanajo, SE Koposov, SE Koposov, T Tsujimoto, TH Greif, TM Brown, V Hill, Y Ishimaru, Y Komiya, YC Kim, YZ Qian   +43 more
core   +2 more sources

r-process enhanched metal-poor stars [PDF]

Proceedings of International Symposium on Nuclear Astrophysics - Nuclei in the Cosmos - IX — PoS(NIC-IX), 2010
In this review we summarize the current state of some aspects of observational studies of low metallicity stars that have been enriched with products of rapid-neutron-capture (r-process) nucleosynthesis events. Attention will be drawn to the element domains where there is little star-tostar variation in relative abundances (such as the rare earths ...
Christopher Sneden, Ian Roederer, John Cowan, James E. Lawler   +3 more
openaire   +2 more sources

Neutrino Capture and r-Process Nucleosynthesis [PDF]

, 1998
We explore neutrino capture during r-process nucleosynthesis in neutrino-driven ejecta from nascent neutron stars. We focus on the interplay between charged-current weak interactions and element synthesis, and we delineate the important role of ...
Fuller, George M., McLaughlin, Gail C., Meyer, Bradley S.   +2 more
core   +2 more sources

Neutrino-Induced Fission and r-Process Nucleosynthesis [PDF]

, 2002
An r-process scenario with fission but no fission cycling is considered to account for the observed abundance patterns of neutron-capture elements in ultra-metal-poor stars.
Magain P., Y.-Z. Qian
core   +3 more sources

Recent advances in microbial capture of hydrogen sulfide from sour gas via sulfur‐oxidizing bacteria

Engineering in Life Sciences, 2021
Biological desulfurization offers several remarkably environmental advantages of operation at ambient temperature and atmospheric pressure, no demand of toxic chemicals as well as the formation of biologically re‐usable sulfur (S0), which has attracted ...
Zheng Chen, Gama Yang, Xuemi Hao, Nadia A. Samak, Yunpu Jia, Sumit Peh, Tingzhen Mu, Maohua Yang, Jianmin Xing   +8 more
doaj   +1 more source

β-delayed neutron emission of r-process nuclei at the N = 82 shell closure

Physics Letters B, 2021
Theoretical models of β-delayed neutron emission are used as crucial inputs in r-process calculations. Benchmarking the predictions of these models is a challenge due to a lack of currently available experimental data.
O. Hall, T. Davinson, A. Estrade, J. Liu, G. Lorusso, F. Montes, S. Nishimura, V.H. Phong, P.J. Woods, J. Agramunt, D.S. Ahn, A. Algora, J.M. Allmond, H. Baba, S. Bae, N.T. Brewer, C.G. Bruno, R. Caballero-Folch, F. Calviño, P.J. Coleman-Smith, G. Cortes, I. Dillmann, C. Domingo-Pardo, A. Fijalkowska, N. Fukuda, S. Go, C.J. Griffin, R. Grzywacz, J. Ha, L.J. Harkness-Brennan, T. Isobe, D. Kahl, L.H. Khiem, G.G. Kiss, A. Korgul, S. Kubono, M. Labiche, I. Lazarus, J. Liang, Z. Liu, K. Matsui, K. Miernik, B. Moon, A.I. Morales, P. Morrall, M.R. Mumpower, N. Nepal, R.D. Page, M. Piersa, V.F.E. Pucknell, B.C. Rasco, B. Rubio, K.P. Rykaczewski, H. Sakurai, Y. Shimizu, D.W. Stracener, T. Sumikama, H. Suzuki, J.L. Tain, H. Takeda, A. Tarifeño-Saldivia, A. Tolosa-Delgado, M. Wolińska-Cichocka, R. Yokoyama   +63 more
doaj   +1 more source

β-delayed Fission in r-process Nucleosynthesis [PDF]

The Astrophysical Journal, 2018
Abstract We present β-delayed neutron emission and β-delayed fission (βdf) calculations for heavy, neutron-rich nuclei using the coupled Quasi-Particle Random Phase Approximation plus Hauser-Feshbach (QRPA+HF) approach. From the initial population of a compound nucleus after β-decay, we follow the statistical decay, taking into account ...
M. R. Mumpower, T. Kawano, T. M. Sprouse, N. Vassh, E. M. Holmbeck, R. Surman, P. Möller   +6 more
openaire   +2 more sources

Warm Tensile Deformation Behavior and Constitutive Equation of Supersaturated Solid-Solutionized Al-9Mg Extruded Alloy [PDF]

Archives of Metallurgy and Materials, 2021
In this paper, as a purpose to apply the supersaturated solid-solutionized Al-9Mg alloy to the structural sheet parts of automotive, tensile tests were conducted under the various conditions and a constitutive equation was derived from the tensile test ...
Seung Y. Yang, Bong H. Kim, Da B. Lee, Kweon H. Choi, Nam S. Kim, Seong H. Ha, Young O. Yoon, Hyun K. Lim, Shae Kim, Young J. Kim   +9 more
doaj   +1 more source

Effect of Interface Microstructure on Joint Strength of Zirconia/Titanium Alloy Brazed with Amorphous Zr-Ti-Ni-Cu Active Filler Metal

Metals, 2020
Active brazing of zirconia with metallic alloys is a promising method for enhancing the mechanical property of zirconia. However, the brazing process of zirconia and metallic alloys has not been studied in detail because of a limitation in selection of ...
Sung Woo Park, Hyunjong Lee, Byung Hoon Lee, Tae Hwan Kim, Kyung Il Kim, Se Ah Hong, Minji Kim, Soong-Keun Hyun, Gwan Ho Ryu, Kyung Taek Kim   +9 more
doaj   +1 more source