Results 101 to 110 of about 4,302,843 (380)

Machine Learning–based Search of High-redshift Quasars

The Astrophysical Journal Supplement Series
We present a machine learning search for high-redshift (5.0 < z < 6.5) quasars using the combined photometric data from the Dark Energy Spectroscopic Instrument (DESI) Imaging Legacy Surveys and the Wide-field Infrared Survey Explorer survey.
Guangping Ye, Huanian Zhang, Qingwen Wu
doaj   +1 more source

The 2dF QSO Redshift Survey -- II. Structure and evolution at high redshift [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
16 pages, 13 figures, MNRAS in press. Typo in abstract fixed (power law index). Also available at http://www.aao.gov.au/local/www/scroom/publications/
Croom, S, Shanks, T, Boyle, B, Smith, R, Miller, L, Loaring, N, Hoyle, F   +6 more
openaire   +3 more sources

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

Impact of Redshift Information on Cosmological Applications with Next-Generation Radio Surveys [PDF]

, 2012
In this paper, we explore how the forthcoming generation of large-scale radio continuum surveys, with the inclusion of some degree of redshift information, can constrain cosmological parameters.
Alvise Raccanelli, Amanullah, Amendola, Bartelmann, Benitez, Blake, Blake, Blake, Bolzonella, Bonfield, Chevallier, Collister, Condon, Cooray, David J. Bacon, Eisenstein, Eisenstein, Feldmann, Firth, Fisher, Hu, Huub Röttgering, Ilbert, Johnston, Jungman, Kaiser, Keller, Kim McAlpine, Laureijs, Lawrence, Linder, Matt J. Jarvis, Mário G. Santos, Norris, Norris, Oosterloo, Overzier, Peebles, Planck Collaboration, Raccanelli, Ray P. Norris, Rottgering, Rottgering, Salvato, Schinnerer, Simpson, Stefano Camera, Tegmark, Wang, Way, Wilman, Wilman, Wright, Zhao   +53 more
core   +2 more sources

THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS [PDF]

The Astrophysical Journal Supplement Series, 2013
We describe the design and data sample from the DEEP2 Galaxy Redshift Survey, the densest and largest precision-redshift survey of galaxies at z ~ 1 completed to date. The survey has conducted a comprehensive census of massive galaxies, their properties, environments, and large-scale structure down to absolute magnitude M_B = -20 at z ~ 1 via ~90 ...
Newman, Jeffrey A., Cooper, Michael C., Davis, Marc, Faber, S. M., Coil, Alison L., Guhathakurta, Puragra, Koo, David C., Phillips, Andrew C., Conroy, Charlie, Dutton, Aaron A., Finkbeiner, Douglas P., Gerke, Brian F., Rosario, David J., Weiner, Benjamin J., Willmer, C. N. A., Yan, Renbin, Harker, Justin J., Kassin, Susan A., Konidaris, N. P., Lai, Kamson, Madgwick, Darren S., Noeske, K. G., Wirth, Gregory D., Connolly, A. J., Kaiser, N., Kirby, Evan N., Lemaux, Brian C., Lin, Lihwai, Lotz, Jennifer M., Luppino, G. A., Marinoni, Christian, Matthews, Daniel J., Metevier, Anne, Schiavon, Ricardo P.   +33 more
openaire   +3 more sources

Heterostructure‐Driven D‐Band of MoS2 Engineering Catalytic Polysulfide Conversion in Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Research on phase ratio‐dependent modulation of built‐in electric fields and d‐band centers in yolk–shell structured C@MoS2‐MoSe2 has determined that the C@3MoS2‐1MoSe2 configuration is optimal, which can achieve an optimal d‐band center position and enhance electrochemical performance.
Ruixian Duan, Guiqiang Cao, Jun Li, Qinting Jiang, Chenyang Hou, Huijuan Yang, Jingjing Wang, Wenbin Li, Changhong Wang, Kun Zhang, Xueliang Sun, Xifei Li   +11 more
wiley   +1 more source

Probing neutrino masses with future galaxy redshift surveys [PDF]

, 2004
We perform a new study of future sensitivities of galaxy redshift surveys to the free-streaming effect caused by neutrino masses, adding the information on cosmological parameters from measurements of primary anisotropies of the cosmic microwave ...
J. Lesgourgues, S. Pastor, L. Perotto
semanticscholar   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

DESI z ≳ 5 Quasar Survey. I. A First Sample of 400 New Quasars at z ∼ 4.7–6.6

The Astrophysical Journal Supplement Series, 2023
We report the first results of a high-redshift ( z ≳ 5) quasar survey using the Dark Energy Spectroscopic Instrument (DESI). As a DESI secondary target program, this survey is designed to carry out a systematic search and investigation of quasars at 4.8 <
Jinyi Yang, Xiaohui Fan, Ansh Gupta, Adam D. Myers, Nathalie Palanque-Delabrouille, Feige Wang, Christophe Yèche, Jessica Nicole Aguilar, Steven Ahlen, David M. Alexander, David Brooks, Kyle Dawson, Axel de la Macorra, Arjun Dey, Govinda Dhungana, Kevin Fanning, Andreu Font-Ribera, Satya Gontcho, Julien Guy, Klaus Honscheid, Stephanie Juneau, Theodore Kisner, Anthony Kremin, Laurent Le Guillou, Michael Levi, Christophe Magneville, Paul Martini, Aaron Meisner, Ramon Miquel, John Moustakas, Jundan Nie, Will Percival, Claire Poppett, Francisco Prada, Edward Schlafly, Gregory Tarlé, Mariana Vargas Magana, Benjamin Alan Weaver, Risa Wechsler, Rongpu Zhou, Zhimin Zhou, Hu Zou   +41 more
doaj   +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, Ankita Mohanty, Amit Malakar, Suryasarathi Bose, Suprakas Sinha Ray   +4 more
wiley   +1 more source