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相关论文: Spatial clustering in the ESO-Sculptor Survey: two…

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We use the clustering results obtained by Madgwick et al. (2003) for a sample of 96,791 2dF galaxies with redshift 0.01 \lt z \lt 0.15 to study the distribution of late-type and early-type galaxies within dark matter haloes of different…

天体物理学 · 物理学 2009-11-07 M. Magliocchetti , C. Porciani

We measure the angular 2-point correlation functions of galaxies in a volume limited, photometrically selected galaxy sample from the fifth data release of the Sloan Digital Sky Survey. We split the sample both by luminosity and galaxy type…

宇宙学与河外天体物理 · 物理学 2011-04-20 Ashley J Ross , Robert J. Brunner

We examine the fraction of early-type (and spiral) galaxies found in groups and clusters of galaxies as a function of dark matter halo mass. We use morphological classifications from the Galaxy Zoo project matched to halo masses from both…

宇宙学与河外天体物理 · 物理学 2015-06-03 Ben Hoyle , Karen. L. Masters , Robert C. Nichol , Raul Jimenez , Steven P. Bamford

We place our sample of 18 Virgo dwarf early-type galaxies (dEs) on the V-K - velocity dispersion, Faber-Jackson, and Fundamental Plane (FP) scaling relations for massive early-type galaxies (Es). We use a generalized velocity dispersion,…

宇宙学与河外天体物理 · 物理学 2015-06-11 E. Toloba , A. Boselli , R. Peletier , J. Falcon-Barroso , G. van de Ven , J. Gorgas

We measure the evolution of clustering for galaxies with different spectral types from 6495 galaxies with 17.5<=I_AB<=24 and measured spectroscopic redshift in the first epoch VIMOS-VLT Deep Survey. We classify our sample into 4 classes,…

We measure the spatial clustering of galaxies as a function of their morphological type at z~0.8, for the first time in a deep redshift survey with full morphological information. This is obtained by combining high-resolution HST imaging…

We determine the cross-correlation function between galaxies and galaxy groups, using both the Two-Degree Field Galaxy Redshift Survey (2dFGRS) and the Sloan Digital Sky Survey (SDSS). We study the cross-correlation as a function of group…

天体物理学 · 物理学 2009-11-11 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Simone M. Weinmann , Cheng Li , Y. P. Jing

We calculate the real- and redshift-space clustering of massive galaxies at z~0.5 using the first semester of data by the Baryon Oscillation Spectroscopic Survey (BOSS). We study the correlation functions of a sample of 44,000 massive…

We study luminosity and morphology segregation of over 3000 cluster galaxies in an ensemble cluster of 59 rich, nearby galaxy clusters observed in the ESO Nearby Cluster Survey (ENACS). Within this sample we identify those galaxies that are…

天体物理学 · 物理学 2009-11-07 A. Biviano , P. Katgert , T. Thomas , C. Adami

Combined HST, X-ray, and ground-based optical studies show that clusters of galaxies are largely "in place" by $z \sim 1$, an epoch when the Universe was less than half its present age. High resolution images show that elliptical, S0, and…

We analyze the clustering of photometrically selected galaxy pairs by using the halo-occupation distribution (HOD) model. We measure the angular two-point auto-correlation function, $\omega(\theta)$, for galaxies and galaxy pairs in three…

星系天体物理 · 物理学 2015-06-22 Yiran Wang , R. J. Brunner

We study the dependence of angular two-point correlation functions on stellar mass ($M_{*}$) and specific star formation rate (sSFR) of $M_{*}>10^{10}M_{\odot}$ galaxies at $z\sim1$. The data from UKIDSS DXS and CFHTLS covering 8.2…

To gain deeper insights into galaxy evolution and the mechanisms driving transitions between different galaxy morphologies, we analyse the connection between star formation rate and stellar mass for 231 galaxies spanning Hubble types E1-Sdm…

星系天体物理 · 物理学 2026-02-23 Veselina Kalinova , Keiichi Kodaira , Dario Colombo

We investigate the effects of halo ellipticity and alignment with larger-scale structure on the galaxy correlation function. We base our analysis on the galaxy formation models of Guo et al. (2011), run on the Millennium Simulations. We…

宇宙学与河外天体物理 · 物理学 2012-04-18 Marcel P. van Daalen , Raul E. Angulo , Simon D. M. White

Using multi-wavelength data, from UV-optical-near-mid IR, for $\sim$6000 galaxies in the local Universe, we study the dependence of star formation on the morphological T-types for massive galaxies ($\log M_*/M_\odot \geq 10$). We find that,…

星系天体物理 · 物理学 2017-08-16 Omkar Bait , Sudhanshu Barway , Yogesh Wadadekar

We study the morphology-radius (MR-) and morphology-density (MD-) relations for a sample of about 850 galaxies (with M <= -19.5) in 23 clusters from the ENACS (ESO Nearby Abell Cluster Survey). On the basis of their radial distributions we…

天体物理学 · 物理学 2009-11-11 T. Thomas , P. Katgert

Using cosmological N-body simulations of critical (SCDM) and open (Omega_0=0.3, OCDM) cold dark matter models we have identified dark matter halos which are associated with the progenitors of present day bright early type galaxies. By…

天体物理学 · 物理学 2007-05-23 F. Governato , Jeffrey P. Gardner , J. Stadel , T. Quinn , G. Lake

Abridge. We have conducted a spectrophotometric study of dwarf early-type galaxies (dEs) in the Virgo cluster and in regions of lower density. We have found that these galaxies show many properties in common with late-type galaxies but not…

宇宙学与河外天体物理 · 物理学 2012-10-31 Elisa Toloba

[ABRIDGED] Using the Gaussian+Schechter composite luminosity functions measured from the ESO-Sculptor Survey (de Lapparent et al. 2003), we obtain evidence for evolution in the late spectral class containing late-type Spiral (Sc+Sd) and…

天体物理学 · 物理学 2009-11-10 Valerie de Lapparent , Stephane Arnouts , Gaspar Galaz , Sandro Bardelli
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