中文
相关论文

相关论文: Galaxy Number Counts from the Sloan Digital Sky Su…

200 篇论文

We study the optical colors of 147,920 galaxies brighter than g* = 21, observed in five bands by the Sloan Digital Sky Survey (SDSS) over ~100 sq. deg. of high Galactic latitude sky along the Celestial Equator. The distribution of galaxies…

天体物理学 · 物理学 2009-11-06 Iskra Strateva , Zeljko Ivezic , Gillian R. Knapp , Vijay K. Narayanan , Michael A. Strauss

We present bright galaxy number counts in the blue (16<Bj<21) and red (15<R<19.5) passbands, performed over 145 sq. degrees, both in the northern and southern galactic hemispheres. The work was conducted on Schmidt plates digitized with the…

天体物理学 · 物理学 2019-08-15 Emmanuel Bertin , Michel Dennefeld

We present u,b,r & i galaxy number counts and colours both from the North and South Hubble Space Telescope Deep Fields and from the William Herschel Deep Field. The latter comprises a 7'x7' area of sky reaching b~28.5 at its deepest. We…

天体物理学 · 物理学 2015-06-24 N. Metcalfe , T. Shanks , A. Campos , H. J. McCracken , R. Fong

We study the spatial variation of galaxy number counts using five band photometric images from the Sloan Digital Sky Survey. The spatial variation of this sample of 46 million galaxies collected from 2200 sq. degrees can be understood as…

During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galaxies complete to r^* = 17.6 over 140 square degrees, we…

天体物理学 · 物理学 2015-06-24 SDSS Collaboration , M. R. Blanton

Galaxy number counts in the $K$-, $H$-, $I$-, $R$-, $B$- and $U$-bands from the Durham Extragalactic Astronomy and Cosmology catalogue could be well-fitted over their whole range using luminosity function (LF) parameters derived from the…

星系天体物理 · 物理学 2023-06-16 John Herbert Marr

We determine the galaxy counts-in-cells distribution from the Sloan Digital Sky Survey (SDSS) for 3D spherical cells in redshift space as well as for 2D projected cells. We find that cosmic variance in the SDSS causes the counts-in-cells…

宇宙学与河外天体物理 · 物理学 2011-02-22 Abel Yang , William C. Saslaw

We present number counts, luminosity functions (LFs) and luminosity densities of galaxies obtained using the Sloan Digital Sky Survey Sixth Data Release in all SDSS photometric bands. Thanks to the SDSS DR6, galaxy statistics have increased…

天体物理学 · 物理学 2009-11-19 Antonio D. Montero-Dorta , Francisco Prada

We compare galaxy number counts in HST/ACS fields containing moderate-redshift (0.2<z<1.0) strong gravitational lenses with those in two control samples: (1) the first square degree of the COSMOS survey, comprising 259 ACS fields and (2) 20…

宇宙学与河外天体物理 · 物理学 2011-04-07 C. D. Fassnacht , L. V. E. Koopmans , K. C. Wong

Using photometry and spectroscopy of 144,609 galaxies from the Sloan Digital Sky Survey, we present bivariate distributions of pairs of seven galaxy properties: four optical colors, surface brightness, radial profile shape as measured by…

The Millennium Galaxy Catalogue (MGC) is a 37.5 deg^2, medium-deep, B-band imaging survey along the celestial equator, taken with the Wide Field Camera on the Isaac Newton Telescope. The survey region is contained within the regions of both…

天体物理学 · 物理学 2008-11-26 J. Liske , D. J. Lemon , S. P. Driver , N. J. G. Cross , W. J. Couch

We present an analytical model which reproduces measured galaxy number counts from surveys in the wavelength range of 500 micron to 2 mm. The model involves a single high-redshift galaxy population with a Schechter luminosity function which…

宇宙学与河外天体物理 · 物理学 2015-05-18 Marcos Lima , Bhuvnesh Jain , Mark Devlin , James Aguirre

We characterize galaxy correlations in the Sloan Digital Sky Survey by measuring several moments of galaxy counts in spheres. We firstly find that the average counts grows as a power-law function of the distance with an exponent D= 2.1+-…

宇宙学与河外天体物理 · 物理学 2015-05-30 Francesco Sylos Labini

We present a deep, wide-field near-infrared (NIR) survey over five widely separated fields at high Galactic latitude covering a total of ~ 3 deg^2 in J, H, and Ks. The deepest areas of the data (~ 0.25 deg^2) extend to a 5 sigma limiting…

宇宙学与河外天体物理 · 物理学 2014-11-20 R. C. Keenan , L. Trouille , A. J. Barger , L. L. Cowie , W. -H. Wang

The primary observational goals of the Sloan Digital Sky Survey are to obtain CCD imaging of 10,000 deg^2 of the north Galactic cap in five passbands, with a limiting magnitude in the r-band of 22.5, to obtain spectroscopic redshifts of…

天体物理学 · 物理学 2007-05-23 M. Bernardi

We present U and B galaxy differential number counts from a field of ~900 arcmin^2, based on GOYA Survey imaging of the HST Groth-Westphal strip. Source detection efficiency corrections as a function of the object size have been applied. A…

天体物理学 · 物理学 2009-11-13 M. C. Eliche-Moral , M. Balcells , M. Prieto , C. E. Garcia-Dabo , P. Erwin , D. Cristobal-Hornillos

abridged: We use a complete sample of about 140,000 galaxies from the Sloan Digital Sky Survey (SDSS) to study the size distribution of galaxies and its dependence on their luminosity, stellar mass, and morphological type. The large SDSS…

We present a catalogue of morphologically classified bright galaxies in the north equatorial stripe (230 deg$^2$) derived from the Third Data Release of the Sloan Digital Sky Survey (SDSS). Morphological classification is performed by…

We construct and analyze a u-band selected galaxy sample from the SDSS Southern Survey, which covers 275 sq. deg. The sample includes 43223 galaxies with spectroscopic redshifts in the range 0.005<z<0.3 and with 14.5<u<20.5. The S/N in the…

{Abridged} We report the discovery of six compact, starburst galaxy candidates with redshifts 2.3 < z < 2.8 and r-band magnitudes 19.8-20.5 in the Quasar Catalog of the Sloan Digital Sky Survey First Data Release (SDSS DR1). The SDSS…

天体物理学 · 物理学 2009-11-10 Misty C. Bentz , Patrick S. Osmer , David H. Weinberg
‹ 上一页 1 2 3 10 下一页 ›