Astrofísicas: Cosmología

  • Publicación
    Planck intermediate results. VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHz
    We make use of the Planck all-sky survey to derive number counts and spectral indices of extragalactic sources - infrared and radio sources - from the Planck...
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    Planck intermediate results. X. Physics of the hot gas in the Coma cluster
    We present an analysis of Planck satellite data on the Coma cluster observed via the Sunyaev-Zeldovich effect. Thanks to its great sensitivity, Planck is able...
  • Publicación
    Planck intermediate results. XI. The gas content of dark matter halos: the Sunyaev-Zeldovich-stellar mass relation for locally brightest galaxies
    We present the scaling relation between Sunyaev-Zeldovich (SZ) signal and stellar mass for almost 260,000 locally brightest galaxies (LBGs) selected from the...
  • Publicación
    Planck intermediate results. XIII. Constraints on peculiar velocities
    Using Planck data combined with the Meta Catalogue of X-ray detected Clusters of galaxies (MCXC), we address the study of peculiar motions by searching for...
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    Planck intermediate results. XLI. A map of lensing-induced B-modes
    The secondary cosmic microwave background (CMB) B-modes stem from the post-decoupling distortion of the polarization E-modes due to the gravitational lensing...
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    Planck intermediate results. XLIX. Parity-violation constraints from polarization data
    Parity-violating extensions of the standard electromagnetic theory cause in vacuo rotation of the plane of polarization of propagating photons. This effect...
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    Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
    This paper describes the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High...
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    Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies
    Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For...
  • Publicación
    Planck intermediate results. XVI. Profile likelihoods for cosmological parameters
    We explore the 2013 Planck likelihood function with a high-precision multi-dimensional minimizer (Minuit). This allows a refinement of the ΛCDM best-fit...