Results 11 to 20 of about 1,465,941 (244)
On problems with cosmography in cosmic dark ages
Physics Letters B, 2021 Quasars show considerable promise as standard candles in a high-redshift window beyond Type Ia supernovae. Recently, Risaliti, Lusso & collaborators [1–3] have succeeded in producing a high redshift Hubble diagram (z≲7) that supports “a trend whereby
A. Banerjee +4 more
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Digital Dark Ages Artists’ Panel
, 2016 Graham, Beryl (2016) Digital Dark Ages Artists’ Panel. 22 Sep. Castleton: AND Festival. http://andfestival.org.uk.
AND Festival, Graham, Beryl
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Public Archaeology for the Dark Ages [PDF]
, 2020 This introductory chapter identifies the principal issues and themes in the public archaeology of the Early Middle Ages, exploring the specific and compelling challenges of investigating and evaluating the early medieval past in contemporary society ...
Williams, Howard
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The Dark Ages' 21-cm Trispectrum [PDF]
, 2022 We investigate tomography of 21-cm brightness temperature fluctuations during the Dark Ages as a probe for constraining primordial non-Gaussianity. We expand the 21- cm brightness temperature up to cubic order in perturbation theory and improve previous ...
de Wild, Tim +10 more
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Displaying the Dark Ages in Museums [PDF]
, 2020 How museums and heritage sites in England display the early medieval past is the focus of academic and public interest and debate. Despite ever-pressured budgets and limited resources, the stories told about the early medieval past in these environments ...
Clarke, Pauline +2 more
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Enlightening the dark ages with dark matter
Constraints on dark matter annihilation or decay oer unique insights into the nature of dark matter. We illustrate how surveys dedicated to detect the highly redshifted 21 cm signal from the dark ages will oer a new window into properties of particle ...
Raccanelli, Alvise +4 more
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Artwork contributed to publication 'Dark Mountain' (issue 21) [PDF]
, 2022 Artwork contributed to publication 'Dark Mountain' (issue 21) "Our twenty-first issue revolves around the theme of confluence. The image of watersmeet, of two streams merging into one, has long had sacred connotations, as shown by the votive ...
Carter, Justin
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Structure of the Baryon Halo Around a Supermassive Primordial Black Hole
ParticlesAccording to some theoretical models, primordial black holes with masses of more than 108 solar masses could be born in the early universe, and their possible observational manifestations have been investigated in a number of works. Dense dark matter and
Boris Murygin +2 more
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Searching for the dark force with 21-cm spectrum in light of EDGES
Physics Letters B, 2019 The EDGES Collaboration has recently announced the detection of the 21-cm spectrum with an absorption profile centred at 78 megahertz, of which the depth is deeper than that expected by the standard cosmological paradigm. To enrich the heating process of
Chunlong Li, Yi-Fu Cai
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Detecting the signature of helium reionization through 3HeII 3.46 cm line-intensity mapping
Astronomy & AstrophysicsContext. Helium reionization is the most recent phase change of the intergalactic medium, yet its timing and main drivers remain uncertain. Among the probes to trace to trace how it unfolds, the 3.46 cm hyperfine line of singly ionized helium has opened ...
Spina Benedetta +6 more
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