Towards understanding the Planck thermal dust models

Abstract

Understanding the properties of dust emission in the microwave domain is an important premise for the next generation of cosmic microwave background (CMB) experiments, devoted to the measurement of the primordial $B$-modes of polarization. In this paper, we compare three solutions to thermal dust emission by the Planck Collaboration \cite{PlanckDust03,planck_16,planck_com} to point out significant differences between their respective parameters (the spectral index $\beta$, the optical depth $\tau$ and the dust temperature $T_d$). These differences originate from e.g. the priors on the parameters or the contribution of the Cosmic infrared background (CIB).

arXiv comment7 pages, 8 figures, Accepted for publication in PRD

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• Determining thermal dust emission from Planck HFI data using a sparse, parametric technique
• Constraining low redshift [CII] Emission by Cross-Correlating FIRAS and BOSS Data
• Rotating baryonic dark halos
• Evaluation of the single-component thermal dust emission model in CMB experiments
• Phase Transition of the Horava-Lifshitz AdS black holes
• Comparison of the Planck 2018 CMB polarization maps in the BICEP2/Keck region