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Browsing by Subject "Cosmic background radiation"

Browsing by Subject "Cosmic background radiation"

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  • BEYONDPLANCK - IV. Simulations and validation 
    Brilenkov, M; Fornazier, K. S. F; Hergt, L. T; Hoerning, G. A; Marins, A; Murokoshi, T; Fazlu Rahman; Stutzer, N-O; Zhou, Y; Abdalla, F. B; Andersen, K. J; Aurlien, R; Banerji, R; Basyrov, A; Battista, A; Bersanelli, M; Bertocco, S; Bollanos, S; Colombo, L. P. L; Eriksen, H. K; Eskilt, J. R; Foss, M. K; Franceschet, C; Fuskeland, U; Galeotta, S; Galloway, M; Gerakakis, S; Gjerløw, E; Hensley, B; Herman, D; Hoang, T. D; Ieronymaki, M; Ihle, H. T; Jewell, J. B; Karakci, A; Keihänen, E; Keskitalo, R; Maggio, G; Maino, D; Maris, M; Paradiso, S; Partridge, B; Reinecke, M; Suur-Uski, A-S; Svalheim, T. L; Tavagnacco, D; Thommesen, H; Tomasi, M; Watts, D. J; Wehus, I. K; Zacchei, A (EDP Sciences, 2023-07)
    End-to-end simulations play a key role in the analysis of any high-sensitivity cosmic microwave background (CMB) experiment, providing high-fidelity systematic error propagation capabilities that are unmatched by any other ...
  • COSMOGLOBE DR1 results. I. Improved Wilkinson Microwave Anisotropy Probe maps through Bayesian end-to-end analysis 
    Watts, D. J; Basyrov, A; Eskilt, J. R; Galloway, M; Gjerlow, E; Hergt, L. T; Herman, D; Ihle, H. T; Paradiso, S; Fazlu, Rahman; Thommesen, H; Aurlien, R; Bersanelli, M; Bianchi, L. A; Brilenkov, M; Colombo, L. P. L; Eriksen, H. K; Franceschet, C; Fuskeland, U; Hensley, B; Hoerning, G. A; Lee, K; Lunde, J. G. S; Marins, A; Nerval, S. K; Patel, S. K; Regnier, M; San, M; Sanyal, S; Stutzer, N.O; Verma, A; Wehus, I. K; Zhou, Y (EDP Sciences, 2023-11)
    We present COSMOGLOBE Data Release 1, which implements the first joint analysis of WMAP and Planck LFI time-ordered data, processed within a single Bayesian end-to-end framework. This framework directly builds on a similar ...
  • COSMOGLOBE DR1 results. II. Constraints on isotropic cosmic birefringence from reprocessed WMAP and Planck LFI data 
    Eskilt, J. R; Watts, D. J; Aurlien, R; Basyrov, A; Bersanelli, M; Brilenkov, M; Colombo, L. P. L; Eriksen, H. K; Fornazier, K. S. F; Franceschet, C; Fuskeland, U; Galloway, M; Gjerlow, E; Hensley, B; Hergt, L. T; Herman, D; Ihle, H. T; Lee, K; Lunde, J. G. S; Nerval, S. K; Paradiso, S; Patel, S. K; Fazlu, Rahman; Regnier, M; San, M; Sanyal, S; Stutzer, N. O.; Thommesen, H; Verma, A; Wehus, I. K; Zhou, Y (EDP Sciences, 2023-11)
    Cosmic birefringence is a parity-violating effect that might have rotated the plane of the linearly polarized light of the cosmic microwave background (CMB) by an angle β since its emission. This angle has recently been ...
  • Cosmoglobe: Towards end-to-end CMB cosmological parameter estimation without likelihood approximations 
    Eskilt, J. R; Lee, K; Watts, D. J; Anshu, V; Aurlien, R; Basyrov, A; Bersanelli, M; Colombo, L. P. L; Eriksen, H. K; Fornazier, K. S. F; Fuskeland, U; Galloway, M; Gjerlow, E; Hergt, L. T; Ihle, H. T; Lunde, J. G. S; Marins, A; Nerval, S. K; Paradiso, S; Rahman, Fazlu; San, M; Stutzer, N. O; Wehus, I. K (EDP Sciences, 2023-10)
    We implement support for a cosmological parameter estimation algorithm in Commander and quantify its computational efficiency and cost. For a semi-realistic simulation similar to Planck LFI 70 GHz, we find that the ...
  • Hot and cold spot counts as probes of non-gaussianity in the cosmic microwave background 
    Pravabati, C; Park, C; Yogendran, K. P; van de Weygaert, R (IOP Publishing, 2012-08-20)
    We introduce the numbers of hot and cold spots, n/subh/ and n/subc/, of excursion sets of the cosmic microwave background (CMB) temperature anisotropy maps as statistical observables that can discriminate different ...
  • Non-gaussianity of diffuse galactic synchrotron emission at 408 MHz 
    Rana, S; Ghosh, T; Bagla, Jasjeet S; Pravabati, C (Oxford University Press on behalf of the Royal Astronomical Society, 2018-11)
    Diffuse Galactic emission at low frequencies is a major contaminant for studies of redshifted 21 cm line studies. Removal of these foregrounds is essential for exploiting the signal from neutral hydrogen at high redshifts. ...

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