Cosmic Inflation and Structure Formation Through Global Analysis
During the last decades, high-precision experiments have made increasingly detailed measurements of
diffuse Extragalactic Background Light (EBL) emitted by cosmological sources. This has revolutionized
the understanding of our cos...
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31/12/2029
Innovasjon Norge
1M€
Presupuesto del proyecto: 1M€
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Innovasjon Norge
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concedida
El organismo HORIZON EUROPE notifico la concesión del proyecto
el día 2024-10-16
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Información proyecto Origins
Duración del proyecto: 62 meses
Fecha Inicio: 2024-10-16
Fecha Fin: 2029-12-31
Líder del proyecto
Innovasjon Norge
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Presupuesto del proyecto
1M€
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Sin fecha límite de participación.
Descripción del proyecto
During the last decades, high-precision experiments have made increasingly detailed measurements of
diffuse Extragalactic Background Light (EBL) emitted by cosmological sources. This has revolutionized
the understanding of our cosmic origins. The Cosmic Microwave Background (CMB) is our most precious
resource for understanding the Big Bang, while the Cosmic Infrared and Optical Backgrounds (CIB and
COB) provide unique constraints on the evolution of large scale structure from the first galaxies to
today. Until recently, measurements of these effects were limited by either foregrounds or instrumental
noise. However, the combined signal-to-noise ratio has now grown so large that the interplay between
astrophysical confusion and instrumental systematic uncertainties dominate the error budget. To make
further process, it has become critical to account for all sources of uncertainties simultaneously. In the
Origins project, I will solve this challenge through joint integrated end-to-end analysis of multiple state-
of-the-art experiments to construct a single coherent model of all main diffuse astrophysical emission
processes from 1 um to 23 GHz. In a novel approach, Origins will utilize archival observations from
ACT, AKARI, COBE/DIRBE, COBE/FIRAS, IRAS, Planck, and WMAP, many in the form of raw time-
ordered data, with upcoming measurements from Simons Observatory and SPHEREx. This will result in
the world’s strongest and most robust constraints on primordial inflationary gravitational waves; the most
accurate map of CIB fluctuations published to date; and possibly the world’s first map of large-scale COB
fluctuations. Simultaneously, it will redefine our understanding of thermal dust emission in the Milky
Way spanning a wide range of the electromagnetic spectrum, and will improve the precision of current
models of Zodiacal Light by several orders of magnitude. This Open Science project will define a new
paradigm for next-generation CMB B-mode and EBL experiments.