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相关论文: Galaxy Clustering in Early SDSS Redshift Data

200 篇论文

We report redshifts, magnitudes and morphological classifications for 5369 galaxies with $m_B \leq 15.5$ and 57 galaxies fainter than this limit, in two regions covering a total of 1.70 steradians in the southern celestial hemisphere. The…

We discuss the behaviour of the redshift- and real-space correlation functions from the ESO Slice Project (ESP) galaxy redshift survey. xi(s) for the whole survey is positive out to ~80/h Mpc, with a smooth break from a shallow power law.…

天体物理学 · 物理学 2007-05-23 L. Guzzo , J. G. Bartlett , A. Cappi

We present initial results of galaxy clustering at 24um by analyzing statistics of the projected galaxy distribution from counts-in-cells. This study focuses on the ELAIS-N1 SWIRE field. The sample covers ~5.9 square-degrees and contains…

天体物理学 · 物理学 2019-08-14 Frank Masci

We present a clustering analysis of Luminous Red Galaxies in SDSS Stripe 82. We study the angular 2-point correlation function, of 130,000 LRG candidates via colour-cut selections in izK with the K band coverage coming from UKIDSS LAS. We…

宇宙学与河外天体物理 · 物理学 2015-06-04 Nikolaos Nikoloudakis , Tom Shanks , Utane Sawangwit

We describe ten strong lensing galaxy clusters of redshift 0.26-0.56 that were found in the Sloan Digital Sky Survey. We present measurements of richness, mass and velocity dispersion for the clusters. We find that in order to use the…

We present the results of a study for galaxy orbits in galaxy clusters using a spectroscopic sample of galaxies in Sloan Digital Sky Survey (SDSS) and 2dF Galaxy Redshift Survey (2dFGRS). We have determined the member galaxies of Abell…

天体物理学 · 物理学 2008-11-26 Ho Seong Hwang , Myung Gyoon Lee

We compute the two-point image correlation function for bright galaxies in the seventh data release of the Sloan Digital Sky Survey (SDSS) over angular scales 0.01' <= \theta <= 120' and projected separations 0.01 Mpc <= r <= 10 Mpc. We…

宇宙学与河外天体物理 · 物理学 2009-04-22 Tereasa G. Brainerd , Ingolfur Agustsson , Chad A. Madsen , Jeffrey A. Edmonds

We present measurements of projected autocorrelation functions w_p(r_p) for the stellar mass of galaxies and for their light in the U, B and V bands, using data from the third data release of the DEEP2 Galaxy Redshift Survey and the final…

We present measurements of the velocity dispersion profile (VDP) for galaxy groups in the final data release of the Sloan Digital Sky Survey (SDSS). For groups of given mass we estimate the redshift-space cross-correlation function (CCF)…

宇宙学与河外天体物理 · 物理学 2015-06-05 Cheng Li , Y. P. Jing , Shude Mao , Jiaxin Han , Qiuying Peng , Xiaohu Yang , H. J. Mo , Frank van den Bosch

The analysis of Redshift-Space Distortions (RSD) within galaxy surveys provides constraints on the amplitude of peculiar velocities induced by structure growth, thereby allowing tests of General Relativity on extremely large scales. The…

宇宙学与河外天体物理 · 物理学 2015-05-19 Alvise Raccanelli , Lado Samushia , Will J. Percival

The apparatus of correlation gamma function (\Gamma*(r)) is used to analyze volume-limited samples from the DR4 Main Galaxy Sample of the SDSS survey with the aim of determining the characteristic scales of galaxy clustering. Up to 20…

天体物理学 · 物理学 2007-05-23 Anton V. Tikhonov

We present results of an investigation of clustering evolution of field galaxies between a redshift of z~1 and the present epoch. The current analysis relies on a sample of ~3600 galaxies from the Calar Alto Deep Imaging Survey (CADIS). The…

天体物理学 · 物理学 2007-05-23 S. Phleps , K. Meisenheimer

We present initial results from a redshift survey carried out with the Low Resolution Imaging Spectrograph on the 10~m W. M. Keck Telescope of a field 14.6 arc-min$^2$ in solid angle. In the redshift distribution of the 106 extragalactic…

天体物理学 · 物理学 2016-08-30 J. G. Cohen , D. W. Hogg , M. A. Pahre , R. Blandford

The peculiar velocity distribution of cluster member galaxies provides a powerful tool to directly investigate the gravitational potentials within galaxy clusters and to test the gravity theory on megaparsec scales. We exploit spectroscopic…

宇宙学与河外天体物理 · 物理学 2023-01-04 D. Rosselli , F. Marulli , A. Veropalumbo , A. Cimatti , L. Moscardini

We present a novel approach for measuring the two-point correlation function of galaxies in narrow pencil beam surveys with varying depths. Our methodology is utilized to expand high-redshift galaxy clustering investigations up to $z \sim…

星系天体物理 · 物理学 2024-08-21 Nicolò Dalmasso , Michele Trenti , Nicha Leethochawalit

We have measured the clustering properties of low-redshift (z < 0.3) sub-mm galaxies detected at 250 micron in the Herschel-ATLAS Science Demonstration Phase (SDP) field. We selected a sample for which we have high-quality spectroscopic…

We measure the rest-frame B-band luminosity function of red-sequence galaxies (RSLF) of five intermediate-redshift (0.5 < z < 0.9), high-mass (sigma > 950 km/s) clusters. Cluster galaxies are identified through photometric redshifts based…

天体物理学 · 物理学 2008-12-18 S. M. Crawford , M. A Bershady , J. G. Hoessel

We present results from a spectroscopic program targeting 26 strong lensing cluster cores that were visually identified in the Sloan Digital Sky Survey (SDSS) and the Second Red-Sequence Cluster Survey (RCS-2). The 26 galaxy cluster lenses…

宇宙学与河外天体物理 · 物理学 2011-02-22 Matthew B. Bayliss , Joseph F. Hennawi , Michael D. Gladders , Benjamin P. Koester , Keren Sharon , Hakon Dahle , Masamune Oguri

We present the first high redshift (0.3 < z < 1.1) galaxy clusters found by systematically identifying optical low surface brightness fluctuations in the background sky. Using spectra obtained with the Keck telescope and I-band images from…

天体物理学 · 物理学 2009-10-28 Dennis Zaritsky , Amy E. Nelson , Julianne J. Dalcanton , Anthony H. Gonzalez