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- W4248117298 abstract "Several attempts were made to detect the possible radio recombination lines of positronium near the galactic center. An absorption feature seen at λ6cm, in the D-configuration of the VLA was not confirmed by subsequent observations at λ6cm and λ20cm using the B and C configurations of the VLA. An observation at λ3mm using the IRAM 30m telescope also did not detect any line. On the basis of one recombination line photon for every positron (McClintock 1984), our non-detections imply an upper limit to the positron production rate of < 3.1 × 10 43 s −1 , within about 2″ of the galactic center." @default.
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- W4248117298 date "1989-01-01" @default.
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- W4248117298 title "A Search for Radio Recombination Lines of Positronium Near the Galactic Center" @default.
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- W4248117298 doi "https://doi.org/10.1017/s0074180900187108" @default.
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