CERN Accelerating science

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1.
Do we owe our existence to gravitational waves? / Ellis, John (King's Coll. London ; CERN) ; Fields, Brian D. (Illinois U., Urbana) ; Surman, Rebecca (Notre Dame U.)
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 growth and development, body temperature and heart rate, and bromine is essential for tissue development and architecture. Collisions of neutron stars (kilonovae) have been identified as sources of $r$-process elements including tellurium, which is adjacent to iodine in the periodic table, and lanthanides. [...]
arXiv:2402.03593.- 2024-09-16 - 5 p. - Published in : Phys. Lett. B 858 (2024) 139028 Fulltext: 2402.03593 - PDF; Publication - PDF;
2.
Could a Kilonova Kill: a Threat Assessment / Perkins, Haille M.L. ; Ellis, John ; Fields, Brian D. ; Hartmann, Dieter H. ; Liu, Zhenghai ; McLaughlin, Gail C. ; Surman, Rebecca ; Wang, Xilu
Binary neutron star mergers (BNS) produce high-energy emissions from several physically different sources, including a gamma-ray burst (GRB) and its afterglow, a kilonova, and, at late times, a remnant many parsecs in size. Ionizing radiation from these sources can be dangerous for life on Earth-like planets when located too close. [...]
arXiv:2310.11627; KCL-PH-TH/2023-55; CERN-TH-2023-190.- 2024-01-24 - 21 p. - Published in : Astrophys. J. 961 (2024) 170 Fulltext: 2310.11627 - PDF; document - PDF;
3.
Proposed Lunar Measurements of $r$-Process Radioisotopes to Distinguish Origin of Deep-sea $^{244}$Pu / Wang, Xilu (Beijing, Inst. High Energy Phys. ; UC, Berkeley ; Notre Dame U.) ; Clark, Adam M. (Notre Dame U.) ; Ellis, John (King's Coll. London ; NICPB, Tallinn ; CERN) ; Ertel, Adrienne F. (Illinois U., Urbana) ; Fields, Brian D. (Illinois U., Urbana) ; Fry, Brian J. (AFIT, Ohio) ; Liu, Zhenghai (Illinois U., Urbana) ; Miller, Jesse A. (Illinois U., Urbana ; Boston U.) ; Surman, Rebecca (Notre Dame U.)
$^{244}$Pu has recently been discovered in deep-sea deposits spanning the past 10 Myr, a period that includes two $^{60}$Fe pulses from nearby supernovae. $^{244}$Pu is among the heaviest $r$-process products, and we consider whether it was created in the supernovae, which is disfavored by nucleosynthesis simulations, or in an earlier kilonova event that seeded $^{244}$Pu in the nearby interstellar medium that was subsequently swept up by the supernova debris. [...]
arXiv:2112.09607; KCL-PH-TH/2021-91; CERN-TH-2021-208; N3AS-21-017.- 2023-05-12 - 13 p. - Published in : Astrophysics 948 (2023) 113 Fulltext: 2112.09607 - PDF; Publication - PDF;
4.
r-Process Radioisotopes from Near-Earth Supernovae and Kilonovae / Wang (王夕露), Xilu ; Clark, Adam M. ; Ellis, John ; Ertel, Adrienne F. ; Fields, Brian D. ; Fry, Brian J. ; Liu, Zhenghai ; Miller, Jesse A. ; Surman, Rebecca
The astrophysical sites where r-process elements are synthesized remain mysterious: it is clear that neutron star mergers (kilonovae (KNe)) contribute, and some classes of core-collapse supernovae (SNe) are also likely sources of at least the lighter r-process species. The discovery of 60Fe on the Earth and Moon implies that one or more astrophysical explosions have occurred near the Earth within the last few million years, probably SNe. [...]
arXiv:2105.05178; KCL-PH-TH/2021-03; CERN-TH-2021-014; N3AS-21-007.- 2021-12-23 - 45 p. - Published in : Astrophys. J. 923 (2021) 219 Fulltext: PDF;
5.
Catching Element Formation In The Act / Fryer, Chris L. (Los Alamos) ; Timmes, Frank (Arizona State U.) ; Hungerford, Aimee L. (Los Alamos) ; Couture, Aaron (Los Alamos) ; Adams, Fred (Michigan U.) ; Aoki, Wako (Natl. Astron. Observ. of Japan) ; Arcones, Almudena (Darmstadt, Tech. Hochsch.) ; Arnett, David (Arizona U.) ; Auchettl, Katie (DARK Cosmology Ctr.) ; Avila, Melina (Argonne) et al.
Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. [...]
arXiv:1902.02915 ; LA-UR-18-29748.
- 2019. - 14 p.
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46 Surman, R
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1 Surman, R.
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