Listar por autor "Ulla, Ana"

Mostrando ítems 1-3 de 3

    • Gaia DR2 Distances to Planetary Nebulae 

      González Santamaría, I.; Manteiga, Minia; Manchado, Arturo; Ulla, Ana; Dafonte, Carlos (MDPI AG, 2020-04-01)
      [Abstract] The aim of this work is to examine distances to planetary nebulae (PNe) together with other properties that were derived from them, using the astrometry of Gaia Data Release 2 (DR2). We were able to identify ...

    • Mining of the Milky Way Star Archive Gaia-DR2: Searching for Binary Stars in Planetary Nebulae 

      González Santamaría, I.; Manteiga, Minia; Dafonte, Carlos; Manchado, Arturo; Ulla, Ana (MDPI AG, 2020-08-31)
      [Abstract] The aim of this work is to search for binary stars associated to planetary nebulae (ionized stellar envelopes in expansion), by mining the astronomical archive of Gaia DR2, that is composed by around 1.7 billion ...

    • Planetary Nebulae in Gaia EDR3: Central Star Identification, Properties, and Binarity 

      González Santamaría, I.; Manteiga, Minia; Manchado, Arturo; Ulla, Ana; Dafonte, Carlos; López-Varela, Pablo (EDP Science, 2021)
      [Abstract] Context. The Gaia Early Data Release 3 (EDR3), published in December 2020, features improved photometry and astrometry compared to that published in the previous DR2 file and includes a substantially larger ...