Listar Ciencias Exactas y Naturales por tema "White dwarf stars"

Mostrando ítems 1-4 de 4

    • Catalog of magnetic white dwarfs with hydrogen dominated atmospheres 

      Amorim, Larissa Luciano; Kepler, Souza Oliveira; Kulebi, Baybars; Jordan, Stefan; Romero, Alejandra Daniela (2023) [Artículo de periódico]
      White dwarfs are excellent research laboratories as they reach temperatures, pressures, and magnetic fields that are unattainable on Earth. To better understand how these three physical parameters interact with each other ...

    • Kepler and TESS observations of PG 1159-035 

      Rosa, Gabriela Oliveira da; Kepler, Souza Oliveira; Córsico, Alejandro Hugo; Costa, Jose Eduardo da Silveira; Hermes, James J.; Kawaler, Steven D.; Bell, Keaton; Montgomery, Michael Houston; Provencal, Judith L.; Winget, Donald Earl; Handler, Gerald; Dunlap, Bart; Clemens, J. Christopher; Uzundag, Murat (2022) [Artículo de periódico]
      PG 1159-035 is the prototype of the PG 1159 hot (pre-)white dwarf pulsators. This important object was observed during the Kepler satellite K2 mission for 69 days in 59 s cadence mode and by the TESS satellite for 25 days ...

    • The double white dwarf merger progenitors of SDSS J2211+1136 and ZTF J1901+1458 

      Sousa, Manoel Felipe; Coelho, Jaziel Goulart; Araujo, José Carlos Neves de; Kepler, Souza Oliveira; Rueda Hernández, Jorge Armando (2022) [Artículo de periódico]
      Double white dwarf (DWD) mergers are possibly the leading formation channel of massive, rapidly rotating, highfield magnetic white dwarfs (HFMWDs). However, a direct link connecting a DWD merger to any observed HFMWD is ...

    • The pulsating helium-atmosphere white dwarfs : I. New DBVs from the Sloan Digital Sky Survey 

      Vanderbosch, Zachary; Hermes, James J.; Winget, Donald Earl; Montgomery, Michael Houston; Bell, Keaton; Nitta, Atsuko; Kepler, Souza Oliveira (2022) [Artículo de periódico]
      We present a dedicated search for new pulsating helium-atmosphere (DBV) white dwarfs from the Sloan Digital Sky Survey using the McDonald 2.1 m Otto Struve Telescope. In total we observed 55 DB and DBA white dwarfs with ...