Browsing Earth Sciences by Subject "Cosmology: observations"

Now showing items 1-4 of 4

    • Planck 2018 results: I. Overview and the cosmological legacy of Planck 

      Aghanim, Nabila; Akrami, Yashar; Arroja, Frederico (EDP Sciences, 2020)
      The European Space Agency’s Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between ...

    • Planck 2018 results: IV. Diffuse component separation 

      Akrami, Yashar; Ashdown, Mark A.J.; Aumont, Jonathan (EDP Sciences, 2020)
      We present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron and thermal dust emission, derived from the third set of Planck frequency maps. These products have significantly lower contamination ...

    • Planck 2018 results: V. CMB power spectra and likelihoods 

      Aghanim, Nabila; Akrami, Yashar; Ashdown, Mark A.J. (EDP Sciences, 2020)
      We describe the legacy Planck cosmic microwave background (CMB) likelihoods derived from the 2018 data release. The overall approach is similar in spirit to the one retained for the 2013 and 2015 data release, with a hybrid ...

    • Planck 2018 results: VII. Isotropy and statistics of the CMB 

      Akrami, Yashar; Ashdown, Mark A.J.; Aumont, Jonathan (EDP Sciences, 2020)
      Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with previous studies using the 2013 and 2015 data ...