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相关论文: Evolution of the Cluster Correlation Function

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Redshift-space distortions in the clustering of galaxy clusters provide a novel probe to test the gravity theory on cosmological scales. The aim of this work is to derive new constraints on the linear growth rate of cosmic structures from…

We study Sunyaev-Zeldovich Effect (SZE) cluster counts in different cosmologies. It is found that even without the full knowledge of the redshift distribution of SZE clusters, one can still readily distinguish a flat universe with a…

天体物理学 · 物理学 2009-10-31 Zuhui Fan , Tzihong Chiueh

We have measured the 3.6 micron luminosity evolution of about 1000 galaxies in 32 clusters at 0.2<z<1.25, without any a priori assumption about luminosity evolution, i.e. in a logically rigorous way. We find that the luminosity of our…

天体物理学 · 物理学 2009-11-11 S. Andreon

We use a high-resolution dissipationless simulation to study the evolution of the dark matter and halo distributions in a spatially flat cosmological model dominated by a cosmological constant $\Lambda$ and cold dark matter ($\Lambda$CDM).…

天体物理学 · 物理学 2009-10-31 Jens Schmalzing , Stefan Gottloeber , Anatoly A. Klypin , Andrey V. Kravtsov

We present a catalogue of 99 candidate clusters and groups of galaxies in the redshift range 0.1 < z_{phot} < 1.3 discovered in the Spitzer First Look Survey (FLS). The clusters are selected by their R - 3.6um galaxy color-magnitude…

天体物理学 · 物理学 2009-11-13 Adam Muzzin , Gillian Wilson , Mark Lacy , H. K. C. Yee , S. A. Stanford

We investigate the evolution of the galaxy two point correlation function (CF) over a wide redshift range, 0.2 < z < 3. For the first time the systematic analysis covers the redshifts above 1 - 1.5. The catalogue of ~250000 galaxies with i+…

宇宙学与河外天体物理 · 物理学 2015-09-09 A. M. Soltan , M. J. Chodorowski

The redshift dependence of the observed cluster abundance due to the Sunyaev-Zeldovich Effect (SZE) is studied in various cosmological models including flat and open homogeneous (CDM) models and an inhomogeneous model with a large-scale…

天体物理学 · 物理学 2009-11-07 Kenji Tomita

We investigate the structural, photometric, and dynamical evolution of cosmic voids and their galaxy populations from $z=2.09$ to the present, focusing on void size as a key evolutionary parameter. Using void catalogs from four Millennium…

宇宙学与河外天体物理 · 物理学 2026-05-28 Saeed Tavasoli

We present measurements of the angular correlation function of galaxies selected from a B_J=23.5 multicolour survey of two 5 degree by 5 degree fields located at high galactic latitudes. The galaxy catalogue of approximately 400,000…

天体物理学 · 物理学 2009-10-31 M. J. I. Brown , R. L. Webster , B. J. Boyle

The rate of galaxy cluster eccentricity evolution is useful in understanding large scale structure. Rapid evolution for $z < $ 0.13 has been found in two different observed cluster samples. We present an analysis of projections of 41…

天体物理学 · 物理学 2009-11-10 Stephen Floor , Adrian Melott , and Patrick Motl

The evolution of the temperature distribution function (TDF) of X-ray clusters is kn own to be a powerful cosmological test of the density parameter of the Universe. Recent XMM observations allows us to measure accurately the L - T relation…

天体物理学 · 物理学 2007-05-23 Sebastien C. Vauclair , Alain Blanchard , the XMM-Omega project collaboration

Mass and concentration of clusters of galaxies are related and evolving with redshift. We study the properties of a sample of 31 massive galaxy clusters at high redshift, 0.8 < z < 1.5, using weak and strong lensing observations.…

宇宙学与河外天体物理 · 物理学 2015-06-16 Mauro Sereno , Giovanni Covone

We measure the luminosity and color dependence of galaxy clustering in the SDSS DR7 main galaxy sample, focusing on the projected correlation function w_p(r_p) of volume-limited samples. We interpret our measurements using halo occupation…

By means of the $r$-band luminosity function (LF) of galaxies in a sample of about 4000 clusters detected by the cluster finder AMICO in the KiDS-DR3 area of about 400 deg$^2$, we studied the evolution with richness and redshift of the…

宇宙学与河外天体物理 · 物理学 2020-11-11 E. Puddu , M. Radovich , M. Sereno , S. Bardelli , M. Maturi , L. Moscardini , F. Bellagamba , C. Giocoli , F. Marulli , M. Roncarelli

We are carrying out a programme to measure the evolution of the stellar and dynamical masses and M/L ratios for a sizeable sample of morphologically-classified disk galaxies in rich galaxy clusters at 0.2<z<0.9. Using FORS2 at the VLT we…

天体物理学 · 物理学 2009-11-07 A. Aragon-Salamanca , B. Milvang-Jensen , G. Hau , I. Jorgensen , J. Hjorth

We measure the morphology--density relation (MDR) and morphology-radius relation (MRR) for galaxies in seven z ~ 1 clusters that have been observed with the Advanced Camera for Surveys on board the Hubble Space Telescope. Simulations and…

We employ high-resolution dissipationless simulations of the concordance LCDM cosmology to model the observed luminosity dependence and evolution of galaxy clustering through most of the age of the universe, from z~5 to z~0. We use a…

天体物理学 · 物理学 2009-11-13 Charlie Conroy , Risa H. Wechsler , Andrey V. Kravtsov

We present the rest-frame optical luminosity function (LF) of red sequence galaxies in 16 clusters at 0.4<z<0.8 drawn from the ESO Distant Cluster Survey (EDisCS). We compare our clusters to an analogous sample from the Sloan Digital Sky…

We demonstrate the ability to recover morphological luminosity distributions within medium redshift clusters (z ~ 0.55) based on Hubble Space Telescope WFPC2 observations. We postulate that a detailed survey of the morphological LDs in…

天体物理学 · 物理学 2007-05-23 S. P. Driver , W. J. Couch , S. C. Odewahn , R. A. Windhorst

The galaxy population in rich local galaxy clusters shows a ratio of one quarter elliptical galaxies, two quarters S0 galaxies, and one quarter spiral galaxies. Observations of clusters at redshift 0.5 show a perspicuously different ratio,…

天体物理学 · 物理学 2009-11-07 Jens Bicker , U. Fritze-v. Alvensleben , K. J. Fricke
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