Results 41 to 50 of about 4,289,848 (346)

The 2dF galaxy redshift survey: near-infrared galaxy luminosity functions [PDF]

open access: yes, 2000
We combine the Two Micron All Sky Survey (2MASS) Extended Source Catalogue and the 2dF Galaxy Redshift Survey to produce an infrared selected galaxy catalogue with 17 173 measured redshifts.
S. Cole   +26 more
semanticscholar   +1 more source

The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample [PDF]

open access: yesAstrophysical Journal, 2017
The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective ...
J. Bautista   +18 more
semanticscholar   +1 more source

Groups and Protocluster Candidates in the CLAUDS and HSC-SSP Joint Deep Surveys

open access: yesThe Astrophysical Journal, 2022
Using the extended halo-based group finder developed by Yang et al., which is able to deal with galaxies via spectroscopic and photometric redshifts simultaneously, we construct galaxy group and candidate protocluster catalogs in a wide redshift range (0
Qingyang Li   +18 more
doaj   +1 more source

Measurement of redshift dependent cross correlation of HSC clusters and Fermi $\gamma$ rays [PDF]

open access: yes, 2019
The cross-correlation study of the unresolved $\gamma$-ray background (UGRB) with galaxy clusters has a potential to reveal the nature of the UGRB. In this paper, we perform a cross-correlation analysis between $\gamma$-ray data by the Fermi Large Area ...
Hashimoto, Daiki   +6 more
core   +2 more sources

The COS-Halos Survey: Metallicities in the Low-redshift Circumgalactic Medium [PDF]

open access: yes, 2017
We analyze new far-ultraviolet spectra of 13 quasars from the COS-Halos survey that cover the H i Lyman limit of 14 circumgalactic medium (CGM) systems.
J. Prochaska   +14 more
semanticscholar   +1 more source

Luminosity-Environment Relation in the Lowz Sample of the SDSS-III

open access: yesOpen Astronomy, 2016
In this work, we examine the environmental dependence of the u-, g-, r-, i- and z-band luminosities in the LOWZ sample of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10).
Deng Xin-Fa   +6 more
doaj   +1 more source

Photometric redshifts: estimating their contamination and distribution using clustering information [PDF]

open access: yes, 2010
We present a new technique to estimate the level of contamination between photometric redshift bins. If the true angular cross-correlation between redshift bins can be safely assumed to be zero, any measured cross-correlation is a result of contamination
Benjamin, Jonathan   +3 more
core   +1 more source

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

open access: yes, 2012
We describe the design and data analysis of the DEEP2 Galaxy Redshift Survey, the densest and largest high-precision redshift survey of galaxies at z ∼ 1 completed to date.
J. Newman   +33 more
semanticscholar   +1 more source

ULAS J234311.93-005034.0: A gravitational lens system selected from UKIDSS and SDSS [PDF]

open access: yes, 2008
We report the discovery of a new gravitational lens system. This object, ULAS J234311.93-005034.0, is the first to be selected by using the new UKIRT Infrared Deep Sky Survey (UKIDSS), together with the Sloan Digital Sky Survey (SDSS).
Eran O. Ofek   +8 more
core   +3 more sources

The Dark Energy Survey: Cosmology Results with ∼1500 New High-redshift Type Ia Supernovae Using the Full 5 yr Data Set

open access: yesAstrophysical Journal Letters
We present cosmological constraints from the sample of Type Ia supernovae (SNe Ia) discovered and measured during the full 5 yr of the Dark Energy Survey (DES) SN program.
D. C. T. Abbott   +157 more
semanticscholar   +1 more source

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