Results 91 to 100 of about 944,215 (294)
The Astrophysical Journal LettersThe little red dots (LRDs) are high-redshift galaxies uncovered by JWST, characterized by small effective radii ( R _eff ∼ 80–300 pc), number densities intermediate between typical galaxies and quasars, and a redshift distribution peaked at z ∼ 5.
Fabio Pacucci, Abraham Loeb
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Robustness and the Event Horizon Telescope: the case of the first image of M87*
Philosophy of PhysicsWe examine the justification for taking the Event Horizon Telescope’s famous 2019 image to be a reliable representation of the region surrounding a black hole.
Juliusz Doboszewski, Jamee Elder
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Shadow and quasinormal modes of the Kerr–Newman–Kiselev–Letelier black hole
European Physical Journal C: Particles and Fields, 2022 We investigate the null geodesics and the shadow cast by the Kerr–Newman–Kiselev–Letelier (KNKL) black hole for the equation of state parameter $$\omega _q=-2/3$$ ω q = - 2 / 3 and for different values of the spacetime parameters, including the ...
Farruh Atamurotov +3 more
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New Worlds in Astroparticle Physics, 2006 13 pages, 9 Figures, ReVTeX4. Based on a talk delivered at the Fifth Meeting on New Worlds in Astroparticle Physics (Faro, Portugal, 8-10 January 2005).
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
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Atmospheric Limitations for High-frequency Ground-based Very Long Baseline Interferometry
The Astrophysical JournalVery long baseline interferometry (VLBI) provides the highest-resolution images in astronomy. The sharpest resolution is nominally achieved at the highest frequencies, but as the observing frequency increases, so too does the atmospheric contribution to ...
Dominic W. Pesce +12 more
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Exact solutions of higher dimensional black holes
, 2011 We review exact solutions of black holes in higher dimensions, focusing on asymptotically flat black hole solutions and Kaluza-Klein type black hole solutions.
Ishihara, Hideki, Tomizawa, Shinya
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Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
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The Astrophysical JournalSimulating black hole (BH) accretion and feedback from the BH horizon to galactic scales is extremely challenging, as it involves a vast range of scales.
Hyerin Cho +4 more
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Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions
Advanced Functional Materials, EarlyView.DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng +7 more
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