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相关论文: A Constant Clustering Amplitude for Faint Galaxies…

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A photometric survey of faint galaxies in three high Galactic latitude fields (each $\sim49~\rm{arcmin^{2}}$) with sub-arcsecond seeing is used to study the clustering properties of the faint galaxy population. Multi-color photometry of the…

天体物理学 · 物理学 2009-10-30 David Woods , Gregory G. Fahlman

We present a preliminary measurement of the angular clustering of faint ($R \le 25$) field galaxies in which we concentrate on the behavior of $w(\theta)$ on small angular scales ($\theta \ls 10''$). The galaxies are strongly clustered and…

天体物理学 · 物理学 2007-05-23 Tereasa G. Brainerd , Casey J. Law , James Brauher , S. G. Djorgovski , Ken Banas

The two-point angular correlation function, $\w$, is constructed from a catalog of 13,000 objects in 24 fields distributed over an area of 4 deg$^2$ and complete to a limit of $R = 23.5$. The amplitude and slope of our correlation function…

天体物理学 · 物理学 2009-10-28 J. Daniel Hudon , Simon J. Lilly

The two-point angular correlation function of galaxies, \wte, has been computed from a new survey of faint galaxies covering a 2 deg$^2$ area near the North Galactic Pole. This survey, which is complete to limiting magnitudes \jmag=24 and…

天体物理学 · 物理学 2009-10-22 L. Infante , C. J. Pritchet

We compute the two-point angular correlation function $w(\theta)$ for a sample of $\sim$ 1700 galaxies to a magnitude-limit equivalent to $R \sim 29.5$ using a catalog derived from the Hubble Deep Field images. A non zero value of…

天体物理学 · 物理学 2009-10-28 Jens V. Villumsen , Wolfram Freudling , Luiz N. da Costa

The 2-point angular correlation function of galaxies, \wt, has been computed on equatorial fields observed with the CTIO 4m prime focus, within a total area of 2.31 deg$^2$. In the magnitude range $19\le m_R \le 21.5$, corresponding to…

天体物理学 · 物理学 2009-10-28 L. Infante , D. F. de Mello , F. Menanteau

(abridged) Using the UH8K mosaic camera, we have measured the angular correlation function \omega(\theta) for 100,000 galaxies over four widely separated fields totalling ~1\deg^2 and reaching IAB~25.5. With this sample we investigate the…

天体物理学 · 物理学 2009-11-07 H. J. McCracken , O. Le Fevre , M. Brodwin , S. Foucaud , S. J. Lilly , D. Crampton , Y. Mellier

We present results for the two-point angular correlation function of galaxies to a limiting magnitude of r=26. The final sample is 97% complete to r=26.0, yielding 5730 galaxies over a 90.1 sq. arcmin field. The correlation function for our…

天体物理学 · 物理学 2015-06-24 Tereasa G. Brainerd , Ian Smail , Jeremy R. Mould

We present constraints on the evolution of large-scale structure from a catalog of 710,000 galaxies with I_AB <= 24 derived from a KPNO 4m CCD imaging survey of a contiguous 4 deg x 4 deg region. The advantage of using large contiguous…

天体物理学 · 物理学 2009-10-30 Marc Postman , Tod R. Lauer , Istvan Szapudi , William Oegerle

We present the first measurement of the angular correlation function in a $K$-selected galaxy survey, from two fields covering almost 10 square degrees. The angular correlation function at small angles is well described by a $\theta^{-0.8}$…

天体物理学 · 物理学 2016-06-08 C. M. Baugh , J. P. Gardner , C. S. Frenk , R. M. Sharples

(abridged) We present an investigation of the clustering of i'AB<24.5 galaxies in the redshift interval 0.2<z<1.2. Using 100,000 precise photometric redshifts in the four ultra-deep fields of the Canada-France Legacy Survey, we construct a…

天体物理学 · 物理学 2009-11-13 H. J. McCracken , O. Ilbert , Y. Mellier , E. Bertin , L. Guzzo , S. Arnouts , O. Le Fèvre , G. Zamorani

Significant uncertainties exist in the measured amplitude of the angular two-point correlation function of galaxies at magnitudes $I\approx26$ and fainter. Published results from HST and ground-based galaxy catalogs seem to differ by as…

天体物理学 · 物理学 2011-05-23 J. U. Fynbo , W. Freudling , P. Moller

Weak gravitational lensing by large scale structure affects the number counts of faint galaxies through the ``magnification bias'' and thus affects the measurement of the angular two-point correlation function $\w $. At faint magnitudes the…

天体物理学 · 物理学 2007-05-23 Jens Verner Villumsen

We derive deep $I$ band luminosity functions and colour-magnitude diagrams from HST imaging for eleven $0.2<z<0.6$ clusters observed at various stages of merging, and a comparison sample of five more relaxed clusters at similar redshifts.…

宇宙学与河外天体物理 · 物理学 2015-06-16 R. De Propris , S. Phillipps , M. Bremer

We present a stable procedure for defining and measuring the two point angular autocorrelation function, w, of faint (25 < V < 29), barely resolved and unresolved sources in the HST GOODS and UDF datasets. We construct catalogs that include…

天体物理学 · 物理学 2015-05-13 Eric Morganson , Roger Blandford

We present measurements of the two-point galaxy angular correlation function w(\theta) in the COSMOS field. Independent determinations of w(\theta) as a function of magnitude limit are presented for both the HST ACS catalog and also for the…

In order to construct accurate point sources simulations at the frequencies relevant to 21 cm experiments, the angular correlation of radio sources must be taken into account. Using the 74 MHz VLSS survey, we measured the angular 2-point…

宇宙学与河外天体物理 · 物理学 2015-05-14 Angelica de Oliveira-Costa , John Capodilupo

(abridged) We present a study of the angular correlation function as measured in the William Herschel Deep Field. This field covers 50 arcmin$^2$ and with it we are able to investigate the scaling of the angular correlation function to…

天体物理学 · 物理学 2009-10-31 H. J. McCracken , T. Shanks , N. Metcalfe , R. Fong , A. Campos

The amplitude of the angular two-point galaxy correlation function w(\theta) for galaxies at z~2 is estimated for galaxies in the Hubble Deep Field by using a U < 27 complete sub-sample. (i) It is confirmed that the amplitude of the…

天体物理学 · 物理学 2016-08-30 Boudewijn F. Roukema , David Valls-Gabaud , Bahram Mobasher , Stanislaw Bajtlik

We investigate the angular correlation function, omega(theta), and third and fourth-order hierarchical moments of a survey with approx. 70000 faint galaxies detected on a total area 1.74 sq. deg. to a limit of R=23.5. The omega(theta)…

天体物理学 · 物理学 2009-10-30 Nathan Roche , Steve Eales
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