Results 101 to 110 of about 176,413 (293)
Unmanaged forest swamps benefit saproxylic and soil‐inhabiting crane fly communities
Insect Conservation and Diversity, EarlyView.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
wiley +1 more source
Supersonic Gas Streams Enhance the Formation of Massive Black Holes in the Early Universe [PDF]
, 2017 The origin of super-massive black holes in the early universe remains poorly understood.Gravitational collapse of a massive primordial gas cloud is a promising initial process,but theoretical studies have difficulty growing the black hole fast enough.We ...
Hirano, Shingo +3 more
core +2 more sources
Advanced Materials, Volume 37, Issue 48, December 3, 2025.Strategies achieving high‐energy‐density aqueous zinc‐ion batteries are summarized and analyzed from both their separate advancements and the integrated effectiveness in this review. Then, perspectives are given for valuable guidance for further development of high‐energy‐density aqueous zinc‐ion batteries.
Mingcong Tang +4 more
wiley +1 more source
Quantum-mechanical Suppression of Accretion by Primordial Black Holes
The Astrophysical Journal LettersThe Schwarzschild radii of primordial black holes (PBHs) in the mass range of 6 × 10 ^14 –4 × 10 ^19 g match the sizes of nuclei to atoms. I discuss the resulting quantum-mechanical suppression in the accretion of matter by PBHs in dense astrophysical ...
Abraham Loeb
doaj +1 more source
NANOGrav Data Hints at Primordial Black Holes as Dark Matter [PDF]
, 2021 Valerio De Luca +2 more
openalex +1 more source
Universal threshold for primordial black hole formation [PDF]
Physical Review D, 2019 In this letter, we argue and show numerically that the threshold to form primordial black holes from an initial spherically symmetric perturbation is, to an excellent approximation, universal, whenever given in terms of the compaction function averaged ...
A. Escrivá, C. Germani, R. Sheth
semanticscholar +1 more source
Constraining the primordial black hole scenario with Bayesian inference and machine learning: The GWTC-2 gravitational wave catalog [PDF]
, 2020 Primordial black holes (PBHs) might be formed in the early Universe and could comprise at least a fraction of the dark matter. Using the recently released GWTC-2 dataset from the third observing run of the LIGO-Virgo Collaboration, we investigate whether
Ka-wah Wong +6 more
semanticscholar +1 more source
, 2015 2014 Fermi Symposium proceedings - eConf C141020 ...
MacGibbon, Jane H +5 more
openaire +2 more sources
X-ray and gamma-ray limits on the primordial black hole abundance from Hawking radiation
Physics Letters B, 2020 The non-observation of extragalactic Hawking radiation from primordial black holes of 1016 g sets a conservative strong bound on their cosmological abundance.
Guillermo Ballesteros +2 more
doaj +1 more source
On Ellipsoidal Collapse and Primordial Black-Hole Formation
, 2016 We reinvestigate gravitational ellipsoidal collapse with special focus on its impact on primordial black-hole formation. For a generic model we demonstrate that the abundance and energy density of the produced primordial black holes will be significantly
Kuhnel, Florian, Sandstad, Marit
core +1 more source