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- W3100990400 abstract "The discovery of a binary neutron star merger (NSM) through both its gravitational wave and electromagnetic emission has revealed these events to be key sites of r-process nucleosynthesis. Here, we evaluate the prospects of finding the remnants of Galactic NSMs by detecting the gamma-ray decay lines from their radioactive r-process ejecta. We find that $^{126}$Sn, which has several lines in the energy range 415-695 keV and resides close to the second r-process peak, is the most promising isotope, because of its half-life $t_{1/2}=2.30(14)times 10^{5}$ yr being comparable to the ages of recent NSMs. Using a Monte Carlo procedure, we predict that multiple remnants are detectable as individual sources by next-generation gamma-ray telescopes which achieve sub-MeV line sensitivities of $sim 10^{-8}$-$10^{-6}$ $gamma$ cm$^{-2}$ s$^{-1}$. However, given the unknown locations of the remnants, the most promising search strategy is a systematic survey of the Galactic plane and bulge extending to high Galactic latitudes. Individual known supernova remnants which may be mis-classified NSM remnants could also be targeted, especially those located outside the Galactic plane. Detection of a moderate sample of Galactic NSM remnants would provide important clues to unresolved issues such as the production of actinides in NSMs, properties of merging NS binaries, and even help distinguish them from rare supernovae as current Galactic r-process sources. We also investigate the diffuse flux from longer-lived nuclei (e.g. $^{182}$Hf) that could in principle trace the Galactic spatial distribution of NSMs over longer timescales, but find that the detection of the diffuse flux appears challenging even with next-generation telescopes." @default.
- W3100990400 created "2020-11-23" @default.
- W3100990400 creator A5015842111 @default.
- W3100990400 creator A5038227503 @default.
- W3100990400 creator A5054611028 @default.
- W3100990400 creator A5067337480 @default.
- W3100990400 creator A5068119430 @default.
- W3100990400 creator A5078330440 @default.
- W3100990400 creator A5085795135 @default.
- W3100990400 creator A5087619432 @default.
- W3100990400 creator A5088715979 @default.
- W3100990400 date "2019-07-19" @default.
- W3100990400 modified "2023-10-18" @default.
- W3100990400 title "Finding the Remnants of the Milky Way's Last Neutron Star Mergers" @default.
- W3100990400 cites W1624321527 @default.
- W3100990400 cites W1851157365 @default.
- W3100990400 cites W1968893677 @default.
- W3100990400 cites W1974254363 @default.
- W3100990400 cites W1974786117 @default.
- W3100990400 cites W1986721897 @default.
- W3100990400 cites W1994741397 @default.
- W3100990400 cites W1996162015 @default.
- W3100990400 cites W2006266761 @default.
- W3100990400 cites W2013453174 @default.
- W3100990400 cites W2022462085 @default.
- W3100990400 cites W2024743329 @default.
- W3100990400 cites W2024993605 @default.
- W3100990400 cites W2026099850 @default.
- W3100990400 cites W2037953664 @default.
- W3100990400 cites W2040281876 @default.
- W3100990400 cites W2049680080 @default.
- W3100990400 cites W2061410797 @default.
- W3100990400 cites W2069887781 @default.
- W3100990400 cites W2070722652 @default.
- W3100990400 cites W2075624696 @default.
- W3100990400 cites W2077007583 @default.
- W3100990400 cites W2084800078 @default.
- W3100990400 cites W2084883277 @default.
- W3100990400 cites W2086503365 @default.
- W3100990400 cites W2087010948 @default.
- W3100990400 cites W2089630383 @default.
- W3100990400 cites W2103165993 @default.
- W3100990400 cites W2114174516 @default.
- W3100990400 cites W2117943013 @default.
- W3100990400 cites W2147436600 @default.
- W3100990400 cites W2156716612 @default.
- W3100990400 cites W2165849281 @default.
- W3100990400 cites W2168006162 @default.
- W3100990400 cites W2178620925 @default.
- W3100990400 cites W2195134359 @default.
- W3100990400 cites W2198632794 @default.
- W3100990400 cites W2237361821 @default.
- W3100990400 cites W2292205977 @default.
- W3100990400 cites W2302438624 @default.
- W3100990400 cites W2312339995 @default.
- W3100990400 cites W2324867120 @default.
- W3100990400 cites W2485876312 @default.
- W3100990400 cites W2488562380 @default.
- W3100990400 cites W2564950513 @default.
- W3100990400 cites W2581254823 @default.
- W3100990400 cites W2584959377 @default.
- W3100990400 cites W2732921053 @default.
- W3100990400 cites W2751407446 @default.
- W3100990400 cites W2765081049 @default.
- W3100990400 cites W2765302758 @default.
- W3100990400 cites W2765333366 @default.
- W3100990400 cites W2765476133 @default.
- W3100990400 cites W2765595587 @default.
- W3100990400 cites W2766054309 @default.
- W3100990400 cites W2766140821 @default.
- W3100990400 cites W2766309526 @default.
- W3100990400 cites W2805141533 @default.
- W3100990400 cites W2811224585 @default.
- W3100990400 cites W2811348959 @default.
- W3100990400 cites W2889317209 @default.
- W3100990400 cites W2889517372 @default.
- W3100990400 cites W2916914712 @default.
- W3100990400 cites W2923887654 @default.
- W3100990400 cites W2935726205 @default.
- W3100990400 cites W2952936550 @default.
- W3100990400 cites W2953565275 @default.
- W3100990400 cites W2995368787 @default.
- W3100990400 cites W3049022315 @default.
- W3100990400 cites W3098188470 @default.
- W3100990400 cites W3098431212 @default.
- W3100990400 cites W3098788333 @default.
- W3100990400 cites W3098978657 @default.
- W3100990400 cites W3099131260 @default.
- W3100990400 cites W3099370130 @default.
- W3100990400 cites W3099554441 @default.
- W3100990400 cites W3099720657 @default.
- W3100990400 cites W3100030802 @default.
- W3100990400 cites W3100317759 @default.
- W3100990400 cites W3100384928 @default.
- W3100990400 cites W3100421444 @default.
- W3100990400 cites W3101104636 @default.
- W3100990400 cites W3102017421 @default.
- W3100990400 cites W3102121686 @default.