Results 111 to 120 of about 4,302,843 (380)
The Hobby–Eberly Telescope VIRUS Parallel Survey (HETVIPS)
The Astrophysical JournalThe Hobby–Eberly Telescope (HET) VIRUS Parallel Survey (HETVIPS) is a blind spectroscopic program that sparsely covers approximately two-thirds of the celestial sphere and consists of roughly 252 million fiber spectra.
Gregory R. Zeimann +8 more
doaj +1 more source
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
Reidentification of Redshifts of SDSS Galaxies Overlapped with Galactic Objects
The Astronomical JournalThis work presents a catalog of reidentified redshifts of 853 galaxies for which the redshifts of overlapping foreground objects were registered in the Sloan Digital Sky Survey (SDSS) DR16 Database.
Masafumi Yagi +2 more
doaj +1 more source
, 2006 We analyze MegaZ-LRG, a photometric-redshift catalogue of Luminous Red Galaxies (LRGs) based on the imaging data of the Sloan Digital Sky Survey (SDSS) 4th Data Release.
Blake, Chris +3 more
core +2 more sources
Modeling the angular correlation function and its full covariance in Photometric Galaxy Surveys [PDF]
, 2011 Near future cosmology will see the advent of wide area photometric galaxy surveys, like the Dark Energy Survey (DES), that extent to high redshifts (z ~ 1 - 2) but with poor radial distance resolution.
Cabre, Anna +2 more
core +2 more sources
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 +2 more sources
Cosmic Complementarity: Joint Parameter Estimation from Cosmic Microwave Background Experiments and Redshift Surveys [PDF]
, 1998 We study the ability of future cosmic microwave background anisotropy experiments and redshift surveys to constrain a 13-dimensional parameterization of the adiabatic cold dark matter model.
D. Eisenstein, Wayne Hu, Max Tegmark
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 +7 more
wiley +1 more source
DESI Spectroscopy of HETDEX Emission-line Candidates. I. Line Discrimination Validation
The Astrophysical JournalThe Hobby–Eberly Dark Energy Experiment (HETDEX) is an untargeted spectroscopic galaxy survey that uses Ly α- emitting galaxies (LAEs) as tracers of 1.9 < z < 3.5 large-scale structure. Most detections consist of a single emission line, whose identity is
Martin Landriau +52 more
doaj +1 more source
Overconstrained Dynamics in Galaxy Redshift Surveys [PDF]
The Astrophysical Journal, 2001 The least-action principle (LAP) method is used on four galaxy redshift surveys to measure the density parameter Omega_m and the matter and galaxy-galaxy power spectra. The datasets are PSCz, ORS, Mark III and SFI. The LAP method is applied on the surveys simultaneously, resulting in an overconstrained dynamical system that describes the cosmic ...
openaire +2 more sources