Atmospheric pressure neutral reionization mass spectrometry for structural analysis† †Electronic supplementary information (ESI) available: Details for experimental procedures and additional supporting data. See DOI: 10.1039/c7sc01999h Click here for additional data file.
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DOI: 10.1039/c7sc01999h
Abstract: Neutral fragments from an ion dissociation event could be detected via reionization at atmospheric pressure. read more here.
Keywords: reionization; reionization mass; pressure neutral; neutral reionization ... See more keywords
A novel probe of ionized bubble shape and size statistics of the epoch of reionization using the contour Minkowski Tensor
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/10/011
Abstract: We employ the rank-2 {\em contour} Minkowski Tensor in two dimensions to probe length and time scales of ionized bubbles during the epoch of reionization. We demonstrate that the eigenvalues of this tensor provide excellent… read more here.
Keywords: epoch reionization; minkowski tensor; reionization; contour minkowski ... See more keywords
Position-dependent power spectra of the 21-cm signal from the epoch of reionization
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/02/058
Abstract: The 21-cm signal from the epoch of reionization is non-Gaussian. Current radio telescopes are focused on detecting the 21-cm power spectrum, but in the future the Square Kilometre Array is anticipated to provide a first… read more here.
Keywords: reionization; dependent power; power; position dependent ... See more keywords
Constraints on superconducting cosmic strings from the global 21-cm signal before reionization
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/09/009
Abstract: Electromagnetic radiation from the cusp region of superconducting cosmic strings leads to a radio excess in the photon spectrum in the early universe and can produce a deep absorption feature in the global 21cm signal… read more here.
Keywords: global signal; reionization; superconducting cosmic; cosmic strings ... See more keywords
Calibration requirements for epoch of reionization 21-cm signal observations. Part IV. Bias and variance with time and frequency correlated residual gains
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/07/024
Abstract: Observation of multifrequency angular power spectrum of the redshifted 21-cm brightness temperature fluctuation from the neutral hydrogen holds the key to understand the structure formation and its evolution during the reionization and post-reionization era. A… read more here.
Keywords: part bias; bandpass errors; gain bandpass; time frequency ... See more keywords
Measuring photo-ionization rate and mean free path of He ii ionizing photons at 2.5 ≤ z ≤ 3.6: evidence for late and rapid HeII reionization part II
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/09/057
Abstract: We present measurements of the spatially averaged He ii photo-ionization rate (〈ΓHeII〉), mean free path of He ii ionizing photons (λmfp,HeII), and He ii fraction (f HeII) across seven redshift bins within the redshift range… read more here.
Keywords: rate; photo ionization; mfp heii; heii ... See more keywords
Reionizing islands with inhomogeneous recombinations
Sign Up to like & getrecommendations! Published in 2023 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/accc77
Abstract: Observations are beginning to constrain the history of the epoch of reionization (EoR). Modeling the reionization process is indispensable to interpret the observations, to infer the properties of ionizing sources, and to probe the various… read more here.
Keywords: reionization; reionizing islands; inhomogeneous recombinations; astronomy ... See more keywords
Reionization with galaxies and active galactic nuclei
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DOI: 10.1093/mnras/staa1138
Abstract: In this work we investigate the properties of the sources that reionized the intergalactic medium (IGM) in the high-redshift Universe. Using a semi-analytical model aimed at reproducing galaxies and black holes in the first ∼1.5 Gyr… read more here.
Keywords: reionization; stellar mass; black hole; hole accretion ... See more keywords
The impact of scatter in the galaxy UV luminosity to halo mass relation on Ly α visibility during the epoch of reionization
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DOI: 10.1093/mnras/staa1178
Abstract: The reionization of hydrogen is closely linked to the first structures in the universe, so understanding the timeline of reionization promises to shed light on the nature of these early objects. In particular, transmission of… read more here.
Keywords: reionization; halo mass; luminosity; mass relation ... See more keywords
Galactic ionizing photon budget during the epoch of reionization in the Cosmic Dawn II simulation
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DOI: 10.1093/mnras/staa1748
Abstract: Cosmic Dawn II yields the first statistically meaningful determination of the relative contribution to reionization by galaxies of different halo mass, from a fully coupled radiation-hydrodynamics simulation of the epoch of reionization large enough (∼100 Mpc)… read more here.
Keywords: epoch reionization; reionization; per cent; mass ... See more keywords
Mocking faint black holes during reionization
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DOI: 10.1093/mnras/staa3253
Abstract: To investigate the potential abundance and impact of nuclear black holes (BHs) during reionization, we generate a neural network that estimates their masses and accretion rates by training it on 23 properties of galaxies harbouring… read more here.
Keywords: reionization; black holes; faint black; holes reionization ... See more keywords