Listar por tema "Astrometry"

Mostrando ítems 1-2 de 2

    • openAccess   Accurate analytical and statistical approaches to reduce O-C discrepancies in the precessional parameters 

      Martínez Usó, María José; Marco Castillo, Francisco José; López Ortí, José Antonio The Astronomical Society of the Pacific (2009-02)
      The Hipparcos catalog provides a reference frame at optical wavelengths for the new International Celestial Reference System (ICRS). This new reference system was adopted following the resolution agreed at the 23rd IAU ...

    • openAccess   Homogenization in compiling ICRF combined catalogs 

      Marco Castillo, Francisco José; Martínez Usó, María José; López Ortí, José Antonio EDP Sciences (2013)
      Context. The International Astronomical Union (IAU) recommendations regarding the International Celestial Reference Frame (ICRF) realizations require the construction of radio sources catalogs obtained using very-long-baseline ...