Three Ultra-short-period Contact Eclipsing Binary Systems Mined from Massive Astronomical Surveys by Athanasios Papageorgiou, Panagiota-Eleftheria Christopoulou, C. E. Ferreira Lopes, Eleni Lalounta, Márcio Catelan, Andrew J. Drake

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A Unique Low-mass-ratio Contact Eclipsing Binary System under the Period Cutoff by Athanasios Papageorgiou, Panagiota-Eleftheria Christopoulou, Eleni Lalounta, C. E. Ferreira Lopes, Márcio Catelan, Andrew J. Drake, Panayiotis Ηantzios, Ioannis Alikakos

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Uranium Abundances and Ages of r-process Enhanced Stars with Novel U ii Lines by Shivani P. Shah, Rana Ezzeddine, Alexander P. Ji, Terese T. Hansen, Ian U. Roederer, Márcio Catelan, Zoe Hackshaw, Erika M. Holmbeck, Timothy C. Beers, Rebecca Surman

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