Results 91 to 100 of about 4,263,806 (339)

Cosmological redshift distortion: deceleration, bias and density parameters from future redshift surveys of galaxies [PDF]

open access: yes, 1997
The observed two-point correlation functions of galaxies in redshift space become anisotropic due to the geometry of the universe as well as due to the presence of the peculiar velocity field.
Ballinger W. E.   +6 more
core   +4 more sources

Mock 2dF and SDSS galaxy redshift surveys [PDF]

open access: yes, 1998
We present a comprehensive set of mock 2dF and SDSS galaxy redshift surveys constructed from a set of large, high-resolution cosmological N-body simulations.
S. Cole   +3 more
semanticscholar   +1 more source

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

open access: yesAdvanced 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   +18 more
wiley   +1 more source

Constraints on perfect fluid and scalar field dark energy models from future redshift surveys [PDF]

open access: yes, 2004
We discuss the constraints that future photometric and spectroscopic redshift surveys can put on dark energy through the baryon oscillations of the power spectrum.
L. Amendola   +2 more
semanticscholar   +1 more source

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

open access: yesAdvanced 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   +11 more
wiley   +1 more source

Spectroscopic Confirmation of a Massive Protocluster with Two Substructures at z ≃ 3.1

open access: yesThe Astrophysical Journal
We present the results of a Keck and Northern Extended Millimeter Array spectroscopic survey of 507 galaxies, where we confirm the presence of two massive overdensities at z = 3.090−3.110 and z = 3.133−3.155 in the neighborhood of the GOODS-N, each with ...
Michael J. Nicandro Rosenthal   +5 more
doaj   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced 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

The MOST Hosts Survey: Spectroscopic Observation of the Host Galaxies of ∼40,000 Transients Using DESI

open access: yesThe Astrophysical Journal Supplement Series
We present the Multi-Object Spectroscopy of Transient (MOST) Hosts survey. The survey is planned to run throughout the 5 yr of operation of the Dark Energy Spectroscopic Instrument (DESI) and will generate a spectroscopic catalog of the hosts of most ...
Maayane T. Soumagnac   +56 more
doaj   +1 more source

Accuracy of the Photometric Redshifts of Brightest Cluster Galaxies Identified in the CFHTLS-W1

open access: yesJournal of Advanced Research in Natural and Applied Sciences
We determine the accuracy of photometric redshifts for the brightest cluster galaxies (BCGs) identified in the W1 field of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS).
Sinan Aliş
doaj   +1 more source

Cosmological Constraints with Clustering-Based Redshifts

open access: yes, 2016
We demonstrate that observations lacking reliable redshift information, such as photometric and radio continuum surveys, can produce robust measurements of cosmological parameters when empowered by clustering-based redshift estimation. This method infers
Kovetz, Ely D.   +2 more
core   +1 more source

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