Navegação Ciências Exatas e da Terra por Autor "Dufour, Patrick"

Resultados 1-4 de 4

    • Discovery of a new AM CVn system with the Kepler satellite 

      Fontaine, Gilles; Brassard, P.; Green, Elisabeth M.; Charpinet, Stéphane; Dufour, Patrick; Hubeny, Ivan; Steeghs, Danny; Aerts, Conny; Randall, S. K.; Bergeron, Pierre; Guvenen, B.; O'Malley, C. J.; Van Grootel, Valérie; Ostensen, Roy; Bloemen, Steven; Silvotti, Roberto; Howell, Steve; Baran, Andrzej; Kepler, Souza Oliveira; Marsh, Tom; Montgomery, Michael Houston; Oreiro, Raquel; Provencal, Judith L.; Telting, John; Winget, Donald Earl; Zima, Wolfgang; Christensen-Dalsgaard, Jorgen; Kjeldsen, Hans (2011) [Artigo de periódico]
      We report the discovery of a new AM CVn system on the basis of broadband photometry obtained with the Kepler satellite supplemented by ground-based optical spectroscopy. Initially retained on Kepler target lists as a ...

    • New white dwarf stars in the Sloan Digital Sky Survey Data Release 10 

      Kepler, Souza Oliveira; Pelisoli, Ingrid Domingos; Koester, Detlev; Ourique, Gustavo; Kleinman, Scot James; Romero, Alejandra Daniela; Nitta, Atsuko; Eisenstein, Daniel, J.; Costa, Jose Eduardo da Silveira; Kulebi, Baybars; Jordan, Stefan; Dufour, Patrick; Giommi, Paolo; Rebassa-Mansergas, Alberto (2015) [Artigo de periódico]
      We report the discovery of 9088 new spectroscopically confirmed white dwarfs and subdwarfs in the Sloan Digital Sky Survey Data Release 10. We obtain Teff, log g and mass for hydrogen atmosphere white dwarf stars (DAs) and ...

    • Photometric variability in a warm, strongly magnetic DQ white dwarf, SDSS J103655.39+652252.2 

      Williams, Kurtis; Winget, Donald Earl; Montgomery, Michael Houston; Dufour, Patrick; Kepler, Souza Oliveira; Hermes, James J.; Falcon, Ross E.; Winget, K. I.; Bolte, Michael; Rubin, Kate H. R.; Liebert, James (2013) [Artigo de periódico]
      We present the discovery of photometric variability in the DQ white dwarf SDSS J103655.39+652252.2 (SDSS J1036+6522). Time-series photometry reveals a coherent monoperiodic modulation at a period of 1115.64751(67) s with ...

    • SDSS DR7 white dwarf catalog 

      Kleinman, Scot James; Kepler, Souza Oliveira; Koester, Detlev; Pelisoli, Ingrid Domingos; Antonio, Viviane Peçanha; Nitta, Atsuko; Costa, Jose Eduardo da Silveira; Krzesinski, Jerzy; Dufour, Patrick; Lachapelle, François-René; Bergeron, Pierre; Yip, Ching-Wa; Harris, Hugh C.; Eisenstein, Daniel, J.; Althaus, Leandro Gabriel; Córsico, Alejandro Hugo (2013) [Artigo de periódico]
      We present a new catalog of spectroscopically confirmed white dwarf stars from the Sloan Digital Sky Survey (SDSS) Data Release 7 spectroscopic catalog. We find 20,407 white dwarf spectra, representing 19,712 stars, and ...