Zobrazeno 1 - 10
of 4 315
pro vyhledávání: '"r-process"'
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139028- (2024)
Two heavy elements essential to human biology are thought to have been produced by the astrophysical r-process, which occurs in neutron-rich environments: iodine is a constituent of thyroid hormones that affect many physiological processes including
Externí odkaz:
https://doaj.org/article/b07d42997bba46b8b5ef46275d25181b
Akademický článek
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Autor:
Melvin Storbacka, Chong Qi
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138822- (2024)
Nuclear physical inputs are critical for predicting the abundance of r-process elements. Extensive sensitivity studies have recently been performed to gauge the impact of the individual properties of nuclei on the r-process. In this work, we investig
Externí odkaz:
https://doaj.org/article/696ffeae17764666a421e48401511ff6
Autor:
Rita K. Y. Lau
Publikováno v:
Universe, Vol 10, Iss 10, p 401 (2024)
The r-process is one of the processes that produces heavy elements in the Universe. One of its possible astrophysical sites is the neutron star–black hole (NS-BH) merger. We first show that the neutrons can degenerate before and during the r-proces
Externí odkaz:
https://doaj.org/article/fdbf4cd645a34fab8f77d6add17e6d7f
Akademický článek
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Publikováno v:
Particles, Vol 6, Iss 3, Pp 784-800 (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. We show that the uncertain properties of the NS equ
Externí odkaz:
https://doaj.org/article/bbdaaa3ebb48416c8802f2190a7690bb
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L5 (2024)
Understanding the details of r -process nucleosynthesis in binary neutron star merger (BNSM) ejecta is key to interpreting kilonova observations and identifying the role of BNSMs in the origin of heavy elements. We present a self-consistent, two-dime
Externí odkaz:
https://doaj.org/article/47eb433bbe42453fb7e56e41e10304b9
Autor:
Nikhil Sarin, Stephan Rosswog
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L24 (2024)
A major ingredient for kilonova lightcurves is the radioactive heating rate and its dependence on the electron fraction and velocity of the ejecta and, in principle, on the nuclear mass formula. Heating-rate formulae commonly used as the basis for ki
Externí odkaz:
https://doaj.org/article/0345563f50b54103b9028cb4c8d0f5b2
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L30 (2024)
The recent gamma-ray burst (GRB) GRB 211211A provides the earliest (∼5 hr) data of a kilonova (KN) event, displaying bright (∼10 ^42 erg s ^−1 ) and blue early emission. Previously, this KN was explained using simplistic multicomponent fitting
Externí odkaz:
https://doaj.org/article/214f82d89b544ac2ae4e5738e3cbf031
Autor:
Zhenyu He, Toshitaka Kajino, Motohiko Kusakabe, Shan-Gui Zhou, Hiroyuki Koura, Satoshi Chiba, Haining Li, Yangming Lin
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L37 (2024)
The slow and intermediate neutron-capture processes, s - and i -processes, are believed to occur in asymptotic giant branch stars to provide half of the heavy atomic nuclei with A ≥ 90. We suggest a possibility that certain types of outflows found
Externí odkaz:
https://doaj.org/article/36500d780d134d1a9b907bb291d92c4f