Results 31 to 40 of about 4,302,843 (380)
Lensing convergence and the neutrino mass scale in galaxy redshift surveys [PDF]
, 2016 We demonstrate the importance of including the lensing contribution in galaxy clustering analyses with large galaxy redshift surveys. It is well known that radial cross-correlations between different redshift bins of galaxy surveys are dominated by ...
W. Cardona +3 more
semanticscholar +1 more source
The Spectroscopic Data Processing Pipeline for the Dark Energy Spectroscopic Instrument
The Astronomical Journal, 2023 We describe the spectroscopic data processing pipeline of the Dark Energy Spectroscopic Instrument (DESI), which is conducting a redshift survey of about 40 million galaxies and quasars using a purpose-built instrument on the 4 m Mayall Telescope at Kitt
J. Guy +57 more
doaj +1 more source
Will kinematic Sunyaev-Zel'dovich measurements enhance the science return from galaxy redshift surveys? [PDF]
, 2016 Yes. Future CMB experiments such as Advanced ACTPol and CMB-S4 should achieve measurements with S/N of > 0.1 for the typical host halo of galaxies in redshift surveys. These measurements will provide complementary measurements of the growth rate of large
Naonori S. Sugiyama +2 more
semanticscholar +1 more source
The kinematic dipole in galaxy redshift surveys [PDF]
, 2017 In the concordance model of the Universe, the matter distribution—as observed in galaxy number counts or the intensity of line emission (such as the 21cm line of neutral hydrogen) —should have a kinematic dipole due to the Sun's motion relative to the ...
R. Maartens, C. Clarkson, Song Chen
semanticscholar +1 more source
Predicting Hα emission-line galaxy counts for future galaxy redshift surveys [PDF]
, 2017 Knowledge of the number density of Hα emitting galaxies is vital for assessing the scientific impact of the Euclid and Wide Field Infrared Survey Telescope (WFIRST) missions. In this work, we present predictions from a galaxy formation model, GALACTICUS,
A. Merson +6 more
semanticscholar +1 more source
Hydra — Centaurus: A Redshift Survey [PDF]
Symposium - International Astronomical Union, 1988 The survey consists of 2 samples : SAMPLE A, 85% complete to B(T) = 14.0 in the region between 10 and 14 Hours in R.A. and between −20 and −50 degrees in DEC., SAMPLE B, complete to B(0) = 14.5 in two regions one between R.A. 13 and 14 hours, DEC between −25 and −33, the other between 11 and 12 hours, DEC from −33 to −27.
G Chincarini +5 more
openaire +1 more source
SHELS: COMPLETE REDSHIFT SURVEYS OF TWO WIDELY SEPARATED FIELDS [PDF]
, 2016 The Smithsonian Hectospec Lensing Survey (SHELS) is a complete redshift survey covering two well-separated fields (F1 and F2) of the Deep Lens Survey (DLS). Both fields are more than 94% complete to a Galactic extinction corrected R0 = 20.2.
M. Geller +5 more
semanticscholar +1 more source
Survey Operations for the Dark Energy Spectroscopic Instrument
The Astronomical Journal, 2023 The Dark Energy Spectroscopic Instrument (DESI) survey is a spectroscopic survey of tens of millions of galaxies at 0 < z < 3.5 covering 14,000 sq. deg. of the sky.
Edward F. Schlafly +50 more
doaj +1 more source
Probing primordial non-Gaussianity with SKA galaxy redshift surveys: a fully relativistic analysis [PDF]
, 2014 The Square Kilometre Array (SKA) will produce spectroscopic surveys of tens to hundreds of millions of neutral hydrogen (H I) galaxies, eventually covering 30 000 deg2 and reaching out to redshift z≳2.
S. Camera, Mário G. Santos, R. Maartens
semanticscholar +1 more source
The SSA22 H i Tomography Survey (SSA22-HIT). I. Data Set and Compiled Redshift Catalog
The Astronomical Journal, 2023 We conducted a deep spectroscopic survey, named SSA22-HIT, in the SSA22 field with the DEep Imaging MultiObject Spectrograph (DEIMOS) on the Keck telescope, designed to tomographically map high- z H i gas through analysis of Ly α absorption in background
Ken Mawatari +18 more
doaj +1 more source