scholarly journals The Shane Wirtanen counts - Observability of the galaxy correlation function

1989 ◽  
Vol 338 ◽  
pp. 605 ◽  
Author(s):  
Michael E. Brown ◽  
Edward J. Groth
Keyword(s):  
Correlation Function ◽  
The Galaxy

The Galaxy Correlation Function in the CNOC2 Redshift Survey: Dependence on Color, Luminosity, and Redshift

2001 ◽  
Vol 560 (1) ◽  
pp. 72-85 ◽  
Author(s):  
C. W. Shepherd ◽  
R. G. Carlberg ◽  
H. K. C. Yee ◽  
S. L. Morris ◽  
H. Lin ◽  
...  
Keyword(s):  
Correlation Function ◽  
The Galaxy ◽  
Redshift Survey

scholarly journals Anisotropic extinction distortion of the galaxy correlation function

2011 ◽  
Vol 84 (6) ◽  
Author(s):  
Wenjuan Fang ◽  
Lam Hui ◽  
Brice Ménard ◽  
Morgan May ◽  
Ryan Scranton
Keyword(s):  
Correlation Function ◽  
The Galaxy

scholarly journals The galaxy correlation function as a constraint on galaxy formation physics

2016 ◽  
Vol 458 (1) ◽  
pp. 934-949 ◽  
Author(s):  
Marcel P. van Daalen ◽  
Bruno M. B. Henriques ◽  
Raul E. Angulo ◽  
Simon D. M. White
Keyword(s):  
Correlation Function ◽  
Galaxy Formation ◽  
The Galaxy

scholarly journals The Galaxy Count Correlation Function in Redshift Space Revisited

2017 ◽  
Vol 845 (1) ◽  
pp. 28 ◽  
Author(s):  
J.-E. Campagne ◽  
S. Plaszczynski ◽  
J. Neveu
Keyword(s):  
Correlation Function ◽  
The Galaxy ◽  
Galaxy Count

scholarly journals Evolution of the galaxy correlation function at redshifts 0.2 < z < 3

2014 ◽  
Vol 11 (S308) ◽  
pp. 291-292
Author(s):  
Andrzej M. Sołtan
Keyword(s):  
Correlation Function ◽  
Data Distribution ◽  
Statistical Information ◽  
Photometric Redshifts ◽  
Surface Distribution ◽  
Galaxy Surveys ◽  
Auto Correlation ◽  
Look Back ◽  
The Galaxy ◽  
Auto Correlation Function

AbstractWe determine the auto-correlation function (ACF) of galaxies using massive deep galaxy surveys for which distances to individual objects are assessed using photometric redshifts. The method is applied to the 2deg COSMOS survey of ~ 300000 galaxies with i + < 25 and zph ≲ 3. The distance estimates based on photometric redshifts are not sufficiently accurate to be directly used to determine the ACF. Nevertheless, the photometric redshifts carry statistical information on the data distribution on (very) large scales. The investigation of the surface distribution of galaxies in several redshift (=distance) bins allows us to determine the spatial (3D) ACF over the redshift range of 0.2 - 3.2 or look back time of 2.4 - 11.5 Gy.

scholarly journals The role of galaxies and AGN in reionizing the IGM – III. IGM–galaxy cross-correlations at z ∼ 6 from eight quasar fields with DEIMOS and MUSE

2020 ◽  
Vol 494 (2) ◽  
pp. 1560-1578
Author(s):  
Romain A Meyer ◽  
Koki Kakiichi ◽  
Sarah E I Bosman ◽  
Richard S Ellis ◽  
Nicolas Laporte ◽  
...  
Keyword(s):  
Correlation Function ◽  
Cross Correlation ◽  
Mean Free Path ◽  
Lyman Break Galaxies ◽  
The Galaxy ◽  
Cross Correlations ◽  
The Mean ◽  
Improved Model ◽  
First Time

ABSTRACT We present improved results of the measurement of the correlation between galaxies and the intergalactic medium transmission at the end of reionization. We have gathered a sample of 13 spectroscopically confirmed Lyman-break galaxies (LBGs) and 21 Lyman-α emitters (LAEs) at angular separations 20 arcsec ≲ θ ≲ 10 arcmin (∼0.1–4 pMpc at z ∼ 6) from the sightlines to eight background z ≳ 6 quasars. We report for the first time the detection of an excess of Lyman-α transmission spikes at ∼10–60 cMpc from LAEs (3.2σ) and LBGs (1.9σ). We interpret the data with an improved model of the galaxy–Lyman-α transmission and two-point cross-correlations, which includes the enhanced photoionization due to clustered faint sources, enhanced gas densities around the central bright objects and spatial variations of the mean free path. The observed LAE(LBG)–Lyman-α transmission spike two-point cross-correlation function (2PCCF) constrains the luminosity-averaged escape fraction of all galaxies contributing to reionization to $\langle f_{\rm esc} \rangle _{M_{\rm UV}\lt -12} = 0.14_{-0.05}^{+0.28}\, (0.23_{-0.12}^{+0.46})$. We investigate if the 2PCCF measurement can determine whether bright or faint galaxies are the dominant contributors to reionization. Our results show that a contribution from faint galaxies ($M_{\rm UV} \gt -20 \, (2\sigma)$) is necessary to reproduce the observed 2PCCF and that reionization might be driven by different sub-populations around LBGs and LAEs at z ∼ 6.

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