Navegação Ciências Exatas e da Terra por Autor "Nagasawa, Daniel Q."

Resultados 1-2 de 2

    • An r -process enhanced star in the dwarf galaxy Tucana III 

      Hansen, Terese T.; Simon, Josh D.; Marshall, Jennifer L.; Li, T. S.; Carollo, Daniela; DePoy, Darren L.; Nagasawa, Daniel Q.; Bernstein, Rebecca A.; Drlica-Wagner, Alex; Abdalla, Filipe B.; Allam, Sahar S.; Annis, James T.; Bechtol, Keith; Benoit-Lévy, Aurélien; Brooks, D.; Buckley-Geer, Elizabeth; Carnero Rosell, Aurelio; Carrasco Kind, Matías; Carretero Palacios, Jorge; Cunha, Carlos Eduardo; Costa, Luiz N. da; Desai, S.; Eifler, Tim; Fausti Neto, Angelo; Flaugher, Brenna; Frieman, Joshua A.; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Gschwend, Julia de Figueiredo; Gutierrez, Gaston R.; James, David J.; Krause, Elisabeth; Kuehn, Kyler; Kuropatkin, Nikolay P.; Lahav, Ofer; Miquel, Ramon; Plazas Malagón, Andrés Alejandro; Romer, Anita K.; Sanchez-Alvaro, Eusebio; Santiago, Basilio Xavier; Scarpine, Victor Emanuel; Smith, Robert Christopher; Soares-Santos, Marcelle; Sobreira, Flávia; Suchyta, Eric; Swanson, Molly E. C.; Tarle, Gregory; Walker, Alistair; DES Collaboration (2017) [Artigo de periódico]
      Chemically peculiar stars in dwarf galaxies provide a window for exploring the birth environment of stars with varying chemical enrichment. We present a chemical abundance analysis of the brightest star in the newly ...

    • Chemical abundance analysis of three α-poor, metal-poor stars in the ultrafaint dwarf galaxy Horologium I 

      Nagasawa, Daniel Q.; Santiago, Basilio Xavier; Yanny, Brian (2018) [Artigo de periódico]
      We present chemical abundance measurements of three stars in the ultrafaint dwarf galaxy Horologium I, a Milky Way satellite discovered by the Dark Energy Survey. Using high-resolution spectroscopic observations, we measure ...