Freyja Montes

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Analysis of Venera 15 and 16 radar images and topographic data from the Freyja Montes region on Venus suggest that this mountain belt formed as a result of a sequence of underthrusts of the lithosphere of the North Polar Plains beneath the highlands of Ishtar Terra. The Freyja Montes deformation zone consists, south to north, of a linear orogenic belt, an(More)
We continued to investigate two-body beta decay of stored, highly-charged ions by single-ion decay spec-troscopy at the example of H-like 140 Pr and 142 Pm ions. For this purpose bunches of 140 Pr 58+ and 142 Pm 60+ ions, containing on average two parent ions, were produced in the FRS (start of the " clock "), in-flight separated and then injected into the(More)
The β-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with β-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N≳126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear(More)
Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV P 208 82 b beam. Secondary fragments were separated and identified, and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority(More)
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