Results 101 to 110 of about 38,917 (207)
Dynamics of primordial black hole formation [PDF]
Physical Review D, 1999 We present a numerical investigation of the gravitational collapse of horizon-size density fluctuations to primordial black holes (PBHs) during the radiation-dominated phase of the Early Universe. The collapse dynamics of three different families of initial perturbation shapes, imposed at the time of horizon crossing, is computed.
Niemeyer, J. C., Jedamzik, K.
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, 2017 This is the translation into English of the introduction, conclusion, and the list of references of the review on massive primordial black holes, which is submitted in Russian to Uspekhi Fizicheskikh Nauk (Physics-Uspekhi).
Dolgov, A. D.
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract It is recognized that mantle plumes play a direct role in generating regional uplift and producing immense volumes of basaltic magmatism, both of which can influence paleoclimate. The Icelandic Plume, beneath the North Atlantic Ocean, is of particular importance due to its size and position at a significant paleoceanographic gateway.
Nicky White +5 more
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Signals of merging supermassive black holes in pulsar timing arrays
Physical Review ResearchIn this work we evaluate whether the gravitational wave background recently observed by a number of different pulsar timing arrays could be due to merging primordial supermassive black hole binaries.
Paul Frederik Depta +3 more
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Primordial black holes from conformal Higgs
Physics Letters BScale-invariant extensions of the electroweak theory are not only attractive because they can dynamically generate the weak scale, but also due to their role in facilitating supercooled first-order phase transitions.
Yann Gouttenoire
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Gravitational waves from primordial black holes and new weak scale phenomena
Physics Letters B, 2017 We entertain the possibility that primordial black holes of mass ∼(1026–1029) g, with Schwarzschild radii of O(cm), constitute ∼10% or more of cosmic dark matter, as allowed by various constraints.
Hooman Davoudiasl, Pier Paolo Giardino
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Phantasmic Encounters in the Arctic: Haunting Materialities Beyond the Ghosts of War
Anthropology of Consciousness, Volume 37, Issue 1, Spring 2026.ABSTRACT In the vast north, ghostly experiences are common for locals and outsiders alike. Here, we explore how cultural‐natural attributes, like remoteness and extreme seasonal variation, compound experiences of the haunting in visceral ways. This provides the Arctic region with an unusually pronounced baseline of other‐than‐human agency, which in the
Aki Hakonen, Oula Seitsonen
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Unmanaged forest swamps benefit saproxylic and soil‐inhabiting crane fly communities
Insect Conservation and Diversity, Volume 19, Issue 2, Page 349-359, March 2026.Species richness of both saproxylic and soil‐inhabiting crane flies was consistently higher in unmanaged forests across all habitat types. Soil‐inhabiting species thrived in swamps and ditches, while saproxylic richness was linked to low light and high soil moisture, independent of habitat type.
David Bille Byriel +4 more
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PRIMORDIAL BLACK HOLES AND COSMOLOGICAL PROBLEMS [PDF]
Particle Physics at the Silver Jubilee of Lomonosov Conferences, 2019 It is argued that the bulk of black holes (BH) in the universe are primordial (PBH). This assertion is strongly supported by the recent astronomical observations, which allow to conclude that supermassive BHs with $M= (10^6 - 10^9) M_\odot$ "work" as seeds for galaxy formation, intermediate mass BHs, $ M = (10^3 - 10^4) M_\odot$, do the same job for ...
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Primordial black holes as dark matter: interferometric tests of phase transition origin
Journal of High Energy PhysicsWe show that primordial black holes — in the observationally allowed mass window with f PBH = 1 — formed from late nucleating patches in a first order phase transition imply upcoming gravitational wave interferometers will see a large stochastic ...
Iason Baldes, María Olalla Olea-Romacho
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