Search Results - "Chluba Jens"
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Green's function of the cosmological thermalization problem – II. Effect of photon injection and constraints
Published in Monthly notices of the Royal Astronomical Society (21-12-2015)“…The energy spectrum of the cosmic microwave background (CMB) provides a powerful tool for constraining standard and non-standard physics in the primordial…”
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Updated fundamental constant constraints from Planck 2018 data and possible relations to the Hubble tension
Published in Monthly notices of the Royal Astronomical Society (01-04-2020)“…ABSTRACT We present updated constraints on the variation of the fine structure constant, αEM, and effective electron rest mass, me, during the cosmological…”
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New constraints on time-dependent variations of fundamental constants using Planck data
Published in Monthly notices of the Royal Astronomical Society (21-02-2018)“…Abstract Observations of the cosmic microwave background (CMB) today allow us to answer detailed questions about the properties of our Universe, targeting both…”
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Teasing bits of information out of the CMB energy spectrum
Published in Monthly notices of the Royal Astronomical Society (01-03-2014)“…Departures of the cosmic microwave background (CMB) frequency spectrum from a blackbody - commonly referred to as spectral distortions - encode information…”
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Spectral distortion constraints on photon injection from low-mass decaying particles
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT Spectral distortions (SDs) of the cosmic microwave background (CMB) provide a powerful tool for studying particle physics. Here we compute the…”
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Mapping the relativistic electron gas temperature across the sky
Published in Monthly notices of the Royal Astronomical Society (01-06-2020)“…ABSTRACT With increasing sensitivity, angular resolution, and frequency coverage, future cosmic microwave background (CMB) experiments like PICO will allow us…”
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Rethinking CMB foregrounds: systematic extension of foreground parametrizations
Published in Monthly notices of the Royal Astronomical Society (01-11-2017)“…Abstract Future high-sensitivity measurements of the cosmic microwave background (CMB) anisotropies and energy spectrum will be limited by our understanding…”
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Planck's view on the spectrum of the Sunyaev–Zeldovich effect
Published in Monthly notices of the Royal Astronomical Society (21-05-2018)“…Abstract We present a detailed analysis of the stacked frequency spectrum of a large sample of galaxy clusters using Planck data, together with auxiliary data…”
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Thermalization of large energy release in the early Universe
Published in Monthly notices of the Royal Astronomical Society (11-10-2020)“…ABSTRACT Spectral distortions of the cosmic microwave background (CMB) provide a unique tool for learning about the early phases of cosmic history, reaching…”
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PROBING THE INFLATON: SMALL-SCALE POWER SPECTRUM CONSTRAINTS FROM MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND ENERGY SPECTRUM
Published in The Astrophysical journal (20-10-2012)“…In the early universe, energy stored in small-scale density perturbations is quickly dissipated by Silk damping, a process that inevitably generates [mu]- and…”
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A fast and accurate method for computing the Sunyaev-Zel'dovich signal of hot galaxy clusters
Published in Monthly notices of the Royal Astronomical Society (11-10-2012)“…Abstract New-generation ground- and space-based cosmic microwave background experiments have ushered in discoveries of massive galaxy clusters via the…”
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cosmospec: fast and detailed computation of the cosmological recombination radiation from hydrogen and helium
Published in Monthly notices of the Royal Astronomical Society (11-03-2016)“…We present the first fast and detailed computation of the cosmological recombination radiation released during the hydrogen (redshift z ... 1300) and helium (z…”
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Prospects for measuring cosmic microwave background spectral distortions in the presence of foregrounds
Published in Monthly notices of the Royal Astronomical Society (11-10-2017)Get full text
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Sensitivity forecasts for the cosmological recombination radiation in the presence of foregrounds
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT The cosmological recombination radiation (CRR) is one of the inevitable Lambda cold dark matter spectral distortions of the cosmic microwave…”
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Bridging the gap: spectral distortions meet gravitational waves
Published in Monthly notices of the Royal Astronomical Society (01-08-2021)“…ABSTRACT Gravitational waves (GWs) have the potential to probe the entirety of cosmological history due to their nearly perfect decoupling from the thermal…”
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Magnetic heating across the cosmological recombination era: results from 3D MHD simulations
Published in Monthly notices of the Royal Astronomical Society (11-12-2018)Get full text
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Evolution of CMB spectral distortion anisotropies and tests of primordial non-Gaussianity
Published in Monthly notices of the Royal Astronomical Society (01-04-2017)“…Anisotropies in distortions to the frequency spectrum of the cosmic microwave background (CMB) can be created through spatially varying heating processes in…”
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Effect of primordial magnetic fields on the ionization history
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…Primordial magnetic fields (PMF) damp at scales smaller than the photon diffusion and free-streaming scale. This leads to heating of ordinary matter (electrons…”
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Spectral distortions from the dissipation of tensor perturbations
Published in Monthly notices of the Royal Astronomical Society (21-01-2015)“…Spectral distortions of the cosmic microwave background (CMB) may become a powerful probe of primordial perturbations at small scales. Existing studies of…”
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Effect of aberration on partial-sky measurements of the cosmic microwave background temperature power spectrum
Published in Physical review. D, Particles, fields, gravitation, and cosmology (16-01-2014)“…Our motion relative to the cosmic microwave background (CMB) rest frame deflects light rays giving rise to shifts as large as l arrow right l(1 + or - beta ),…”
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