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Mathieu Remazeilles: Projects

     I moved to IFCA in Spain as a CSIC Tenured Research Scientist (December 1st, 2021)

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ESA Voyage 2050: In response to the ESA Voyage 2050 call for long-term missions planning, I coordinated the Science White Paper "CMB Backlight", in which we describe the scientific advances that would be achieved in cosmology in the next decades with a large-class space mission that would probe the various interactions between the CMB light and the cosmic web.

        Our aim is to use the CMB as a backlight to probe the total mass, gas, and stellar content of the entire observable Universe by means of analyzing the spatial and spectral distortions imprinted on the CMB.

LiteBIRD: A CMB space mission dedicated to the search for primordial CMB B-modes, which has just been selected by the Japanese space agency JAXA on 21 May 2019 for a launch in 2028 (JAXA announcement).

         The science goals and forecasts of LiteBIRD are described in this paper.

Simons Observatory (SO): A ground-based CMB observatory to probe primordial CMB B-modes, SZ effects, neutrino masses, whose first survey will start in 2021.

         The science goals and forecasts of SO are described in this paper.

PICO: A Probe-class CMB space mission concept study commissioned by NASA for broad CMB science.

         In this report, we have provided comprehensive forecasts on the science that would be achieved with PICO.

CORE: A European CMB satellite concept proposed to ESA in 2017 for the detection of primordial CMB B-modes.

         I was the coordinator of the Foregrounds Working Group for CORE. In this paper we have performed a comprehensive study of the foregrounds and the component separation problem for the search for primordial CMB B-modes with CORE.

Planck: ESA's space mission launched on May 2009 to measure the temperature anisotropies of the cosmic microwave background (CMB) radiation through 9 frequency bands ranging from 30 to 857 GHz. As a Planck Scientist I have worked on extracting and characterizing components of emission beyond the CMB only: Sunyaev-Zeldovich (SZ) effects from galaxy clusters, cosmic infrared background (CIB) from primordial background galaxies, Galactic dust foreground emission from the Milky Way.

         I have led a Planck Collaboration paper on extracting Galactic dust and CIB emissions. In another Planck Collaboration paper I produced the Planck thermal SZ all-sky map. An overview of the latest scientific results from Planck is presented in this paper.

BINGO : A single-dish telescope for 21-cm line intensity mapping, dedicated to the measurement of Baryon Acoustic Oscillations (BAO) in the radio waveband.

         Here is a paper on a blind component separation method developed with my PhD student Lucas Olivari for 21-cm line intensity mapping. First project papers from our collaboration have just been released (2021), e.g. the BINGO overview paper and the BINGO component separation paper.

International Space Science Intitute: A two-year project, "SZ clusters in the Planck era".
   Member of an international team of 10 scientists working on the joint data analysis of Planck and Atacama Cosmology Telescope (ACT) for SZ cluster science.

         Here is a pioneering paper proposing a method for improving the measurement of the thermal SZ effect by combining ACT and Planck observations. An application to real Planck and ACT data has been given by our team in this paper and this paper.