Results 151 to 160 of about 775,871 (306)

CANDELS: Elevated Black Hole Growth in the Progenitors of Compact Quiescent Galaxies at z ∼ 2 [PDF]

, 2017
Dale D. Kocevski, Guillermo Barro, S. M. Faber, Avishai Dekel, Rachel S. Somerville, Joshua A. Young, Christina C. Williams, Daniel H. McIntosh, A. Georgakakis, G. Hasinger, K. Nandra, F. Civano, D. M. Alexander, O. Almaini, Christopher J. Conselice, J. L. Donley, Henry C. Ferguson, Mauro Giavalisco, Norman A. Grogin, Nimish P. Hathi, Matthew Hawkins, Anton M. Koekemoer, David C. Koo, Elizabeth J. McGrath, Bahram Mobasher, Pablo G. Pérez‐González, J. Pforr, Joel R. Primack, P. Santini, Mauro Stefanon, Jonathan R. Trump, Arjen van der Wel, Stijn Wuyts, Haojing Yan   +33 more
openalex   +1 more source

Primordial black holes as supermassive black hole seeds

Journal of Cosmology and Astroparticle Physics
Abstract The presence of supermassive black holes (SMBHs, M • ∼ 106-10 M ⊙) in the first cosmic Gyr (z ≳ 6) challenges current models of BH formation and evolution. We propose a novel mechanism for the formation of early SMBH seeds based on primordial black holes (PBHs).
F. Ziparo, S. Gallerani, A. Ferrara
openaire   +2 more sources

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

Primordial black hole production in inflationary models of supergravity with a single chiral superfield [PDF]

, 2018
T. Gao, Zong‐Kuan Guo
openalex   +1 more source

Constraints on the contributions to the observed binary black hole population from individual evolutionary pathways in isolated binary evolution [PDF]

, 2022
S. P. Stevenson, Teagan A. Clarke
openalex   +1 more source

Fully extremal black holes: A black hole graveyard?

International Journal of Modern Physics D
While the standard point of view is that the ultimate endpoint of black hole evolution is determined by Hawking evaporation, there is a growing evidence that classical and semi-classical instabilities affect both black holes with inner horizons as well as their ultra-compact counterparts.
Francesco Di Filippo, Stefano Liberati, Matt Visser   +2 more
openaire   +3 more sources

Tailored Reconstruction of Polycrystalline CuO Nanorods Promotes C─C Coupling in CO2 Electroreduction

Advanced Functional Materials, EarlyView.
Controlling the polycrystallinity of CuO nanorods enables directional reconstruction into rod‐like structures that stabilize Cu(OH)2 and increase Cu+ ratios, while modulating interfacial water dynamics to enhance C─C coupling and boost C2+ product formation in CO2 electroreduction.
Hyeon‐Seok Bang, Young‐Jin Ko, Hyo Sang Jeon, Eugene Huh, Eung Dab Kim, Min Gwan Ha, Chulwan Lim, Jiho Jeon, Seohyeon Ka, Dogyeong Kim, Xiaojie Zhang, Yeongjin Kim, Kyeongsu Kim, Woong Hee Lee, Jae‐Young Choi, Hyung‐Suk Oh   +15 more
wiley   +1 more source

Linear stability of black holes with static scalar hair in full Horndeski theories: Generic instabilities and surviving models [PDF]

, 2022
Masato Minamitsuji, Kazufumi Takahashi, Shinji Tsujikawa   +2 more
openalex   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source