Results 111 to 120 of about 4,289,848 (346)

The 2dF QSO Redshift Survey – XII. The spectroscopic catalogue and luminosity function [PDF]

, 2004
We present the final catalogue of the 2dF QSO Redshift Survey (2QZ), based on Anglo-Australian Telescope 2dF spectroscopic observations of 44 576 colour-selected (ub J r) objects with 18.25 < b J < 20.85 selected from automated plate measurement scans of
S. Croom, R. Smith, B. Boyle, T. Shanks, L. Miller, P. Outram, N. A. A. Observatory, Liverpool Jmu, Durham, Oxford, Mssl   +10 more
semanticscholar   +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

A test for the redshift dependence of $$\sigma _8$$ σ 8 using $$f\sigma _8$$ f σ 8 measurements

European Physical Journal C: Particles and Fields
We search for a redshift dependence of $$\sigma _8^0$$ σ 8 0 using 23 growth rate measurements from redshift space distortions and peculiar velocity measurements as a consistency check of $$\Lambda $$ Λ CDM.
Siddhant Manna, Shantanu Desai
doaj   +1 more source

The UNCOVER Survey: A First-look HST+JWST Catalog of Galaxy Redshifts and Stellar Population Properties Spanning 0.2 ≲ z ≲ 15

The Astrophysical Journal Supplement Series, 2023
The recent UNCOVER survey with the James Webb Space Telescope (JWST) exploits the nearby cluster A2744 to create the deepest view of our Universe to date by leveraging strong gravitational lensing.
Bingjie Wang, Joel Leja, Ivo Labbé, Rachel Bezanson, Katherine E. Whitaker, Gabriel Brammer, Lukas J. Furtak, John R. Weaver, Sedona H. Price, Adi Zitrin, Hakim Atek, Dan Coe, Sam E. Cutler, Pratika Dayal, Pieter van Dokkum, Robert Feldmann, Danilo Marchesini, Marijn Franx, Natascha Förster Schreiber, Seiji Fujimoto, Marla Geha, Karl Glazebrook, Anna de Graaff, Jenny E. Greene, Stéphanie Juneau, Susan Kassin, Mariska Kriek, Gourav Khullar, Michael Maseda, Lamiya A. Mowla, Adam Muzzin, Themiya Nanayakkara, Erica J. Nelson, Pascal A. Oesch, Camilla Pacifici, Richard Pan, Casey Papovich, David J. Setton, Alice E. Shapley, Renske Smit, Mauro Stefanon, Katherine A. Suess, Edward N. Taylor, Christina C. Williams   +43 more
doaj   +1 more source

THE CANADA-FRANCE REDSHIFT SURVEY IX: HST Imaging of High-Redshift Field Galaxies

, 1995
HST B and I images are presented of 32 CFRS galaxies with secure redshifts in the range 0.5 < z < 1.2. These galaxies exhibit the same range of morphological types as seen locally, i.e., ellipticals, spirals and irregulars.
Crampton, David, Fevre, O. Le, Hammer, F., Lilly, S. J., Schade, D. J., Tresse, L.   +5 more
core   +2 more sources

A REDSHIFT SURVEY OF HERSCHEL FAR-INFRARED SELECTED STARBURSTS AND IMPLICATIONS FOR OBSCURED STAR FORMATION [PDF]

, 2012
We present Keck spectroscopic observations and redshifts for a sample of 767 Herschel-SPIRE selected galaxies (HSGs) at 250, 350, and 500 μm, taken with the Keck I Low Resolution Imaging Spectrometer and the Keck II DEep Imaging Multi-Object Spectrograph.
C. Casey, S. Berta, M. B'ethermin, J. Bock, C. Bridge, J. Budynkiewicz, D. Burgarella, E. Chapin, S. Chapman, D. Clements, A. Conley, C. Conselice, A. Cooray, D. Farrah, E. Hatziminaoglou, R. Ivison, E. Floc’h, D. Lutz, G. Magdis, B. Magnelli, S. Oliver, M. Page, F. Pozzi, D. Rigopoulou, L. Riguccini, I. Roseboom, D. Sanders, D. Scott, N. Seymour, I. Valtchanov, J. Vieira, M. Viero, J. Hawaii, Mpe, Saclay, Ias, Caltech, Jpl, Umass, Marseille, Ubc, Esac, Cambridge, Dalhousie, Imperial, Colorado, Nottingham, Uci, Virginia Tech, Eső, Ukatc, Edinburgh, Oxford, Sussex, Mssl, Bologna, Ral, Nasa Ames, Csiro   +58 more
semanticscholar   +1 more source

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

Advanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Model-agnostic Cosmological Inference with SDSS-IV eBOSS: Simultaneous Probing for the Background and Perturbed Universe

The Astrophysical Journal
Here, we explore certain subtle features imprinted in data from the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) as a combined probe for the background and perturbed universe. We reconstruct the
Purba Mukherjee, Anjan A Sen
doaj   +1 more source

The 2dF Galaxy Redshift Survey: correlation functions, peculiar velocities and the matter density of the Universe [PDF]

, 2002
We present a detailed analysis of the two-point correlation function, xi(sigma, pi), from the 2dF Galaxy Redshift Survey (2dFGRS). The large size of the catalogue, which contains similar to220 000 redshifts, allows us to make high-precision measurements ...
E. Hawkins, S. Maddox, S. Cole, O. Lahav, D. Madgwick, D. Madgwick, P. Norberg, J. Peacock, I. Baldry, C. Baugh, J. Bland-Hawthorn, T. Bridges, R. Cannon, M. Colless, C. Collins, W. Couch, G. Dalton, G. Dalton, R. Propris, S. Driver, G. Efstathiou, R. Ellis, C. Frenk, K. Glazebrook, C. Jackson, B. Jones, I. Lewis, S. Lumsden, W. Percival, B. Peterson, W. Sutherland, K. Taylor   +31 more
semanticscholar   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source