Results 111 to 120 of about 89,711 (344)
Cosmology with Redshift Surveys of Radio Sources [PDF]
, 1998 We use the K-z relation for radio galaxies to illustrate why it has proved difficult to obtain definitive cosmological results from studies based entirely on catalogues of the brightest radio sources, e.g. 3C. To improve on this situation we have been undertaking redshift surveys of complete samples drawn from the fainter 6C and 7C radio catalogues. We
Rawlings, S +4 more
openaire +5 more sources
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 +15 more
wiley +1 more source
Type Ia Supernovae from First-generation Stars
The Astrophysical JournalType Ia supernovae (SNe Ia) discovered at redshift z ≲ 2.5 are presumed to be produced from Population I/II stars. In this work, we investigate the production of SNe Ia from Population III binaries in the cosmological framework.
Zhenwei Li +3 more
doaj +1 more source
, 2000 With approximately 6000 QSO redshifts,the 2dF QSO redshift survey is already the biggest complete QSO survey. The aim for the survey is to have 25000 QSO redshifts, providing an order of magnitude increase in QSO clustering statistics. We first describe the observational parameters of the 2dF QSO survey.
Shanks, T +5 more
openaire +3 more sources
Cosmology with Galaxy Redshift Surveys [PDF]
Proceedings of Frontiers of Fundamental Physics 14 — PoS(FFP14), 2016 n ...
openaire +1 more source
Redshift sensitivities of dark energy surveys
Physical Review D, 2006 Great uncertainty surrounds dark energy, both in terms of its physics, and the choice of methods by which the problem should be addressed. Here we quantify the redshift sensitivities offered by different techniques. We focus on the three methods most adept at constraining w, namely supernovae, cosmic shear, and baryon oscillations.
Simpson, Fergus, Bridle, Sarah
openaire +3 more sources
Advanced Functional Materials, EarlyView.A π‐bridge engineering strategy enhances intramolecular charge transfer, enabling non‐fullerene acceptors to extend near‐infrared absorption beyond 1200 nm. The resulting organic photodiodes exhibit high detectivity and fast response. These high‐performance devices demonstrate practical potential in photoplethysmography and optical wireless ...
Meng Qiang Li +7 more
wiley +1 more source
The Astrophysical JournalIn this investigation, we leverage the combination of the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 9, Survey Validation 3, and Year 1 data sets to estimate the conditional luminosity functions and conditional ...
Yirong Wang +44 more
doaj +1 more source
hCOSMOS: a dense spectroscopic survey of $r\leqslant21.3$ galaxies in the COSMOS field
, 2017 We describe the hCOSMOS redshift survey of the COSMOS field conducted with the Hectospec spectrograph on the MMT. In the central 1~deg$^2$, the hCOS20.6 subset of the survey is $>90\%$ complete to a limiting $r=20.6$. The hCOSMOS survey includes 1701 new
Damjanov, Ivana +4 more
core +1 more source
Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth
Advanced Functional Materials, EarlyView.This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh +4 more
wiley +1 more source