中文
相关论文

相关论文: Galaxy Alignments with Surrounding Structure in th…

200 篇论文

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

Using a sample of nearly 20,000 massive early-type galaxies selected from the Sloan Digital Sky Survey, we study the color-magnitude relation for the most luminous (L > 2.2 L^{*}) field galaxies in the redshift range 0.1<z<0.4 in several…

We analyzed the spatial distribution of 28500 photometrically selected galaxies with AB magnitude 23.5<R<25.5 and redshift 1.4<z<3.5 in 21 fields with a total area of 0.81 square degrees. The galaxies were divided into three subsamples,…

天体物理学 · 物理学 2009-11-10 K. L. Adelberger , C. C. Steidel , M. Pettini , A. E. Shapley , N. A. Reddy , D. K. Erb

The most luminous galaxies in the blue passband have a larger correlation amplitude than L* galaxies. They do not appear to be preferentially located in rich clusters or groups, but a significant fraction of them seem to be in systems which…

天体物理学 · 物理学 2009-11-10 Alberto Cappi , Christophe Benoist , Luiz N. da Costa , Sophie Maurogordato

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 study the Distant Red Galaxy (DRG, J-K_s > 2.3) neighbour population of Quasi Stellar Objects (QSOs) selected from the Sloan Digital Sky Survey (SDSS) in the redshift range 1 < z < 2. We perform a similar analysis for optically obscured…

天体物理学 · 物理学 2008-11-26 Carlos G. Bornancini , Diego Garcia Lambas

Filaments are one of the most prominent features visible in the galaxy distribution. Considering the Luminous Red Galaxies (LRGs) in the Sloan Digital Sky Survey Data Release Seven (SDSS DR7), we have analyzed the filamentarity in 11 nearly…

宇宙学与河外天体物理 · 物理学 2015-05-19 Biswajit Pandey , Gauri Kulkarni , Somnath Bharadwaj , Tarun Souradeep

We study the cross-correlation between galaxies of different luminosities and colors, using a sample selected from the SDSS Dr 4. Galaxies are divided into 6 samples according to luminosity, and each of these samples is divided into red and…

天体物理学 · 物理学 2011-02-11 Yu Wang , Xiaohu Yang , H. J. Mo , Frank C. van den Bosch

Using data from the Sloan Digital Sky Survey (SDSS; data release 7), we have conducted a search for local analogs to the extremely compact, massive, quiescent galaxies that have been identified at z > 2. We show that incompleteness is a…

宇宙学与河外天体物理 · 物理学 2010-09-21 Edward N Taylor , Marijn Franx , Karl Glazebrook , Jarle Brinchmann , Arjen van der Wel , Pieter G van Dokkum

We use data from the SDSS to investigate the evolution of the large-scale galaxy bias as a function of luminosity for red galaxies. We carefully consider correlation functions of galaxies selected from both photometric and spectroscopic…

宇宙学与河外天体物理 · 物理学 2015-03-17 Ashley J. Ross , Rita Tojeiro , Will J. Percival

We present the small-scale (0.2h^{-1} to 7h^{-1} Mpc) cross-correlations between 32,000 luminous early-type galaxies and a reference sample of 16 million normal galaxies from the Sloan Digital Sky Survey. Our method allows us to construct…

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 investigate the luminosity and colour dependence of clustering of CMASS galaxies in the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey Tenth Data Release. The halo occupation distribution framework is adopted to…

Correlations between the intrinsic shapes of galaxies and the large-scale galaxy density field provide an important tool to investigate galaxy intrinsic alignments, which constitute a major astrophysical systematic in cosmological weak…

宇宙学与河外天体物理 · 物理学 2011-08-01 B. Joachimi , R. Mandelbaum , F. B. Abdalla , S. L. Bridle

We present the results of a search for galaxy alignments in 12 galaxy clusters at z>0.5, a statistically complete subset of the very X-ray luminous clusters from the MAssive Cluster Survey (MACS). Using high-quality images taken with the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Chao-Ling Hung , Harald Ebeling

By comparing semi-analytic galaxy catalogues with data from the Sloan Digital Sky Survey (SDSS), we show that current galaxy formation models reproduce qualitatively the dependence of galaxy clustering and pairwise peculiar velocities on…

天体物理学 · 物理学 2008-11-26 Cheng Li , Y. P. Jing , Guinevere Kauffmann , Gerhard Boerner , Xi Kang , Lan Wang

Galaxies are generally found to follow a relation between their size and luminosity, such that luminous galaxies typically have large sizes. The recent identification of a significant population of galaxies with large sizes but low…

星系天体物理 · 物理学 2019-05-01 Shany Danieli , Pieter van Dokkum

A clustering analysis is performed on two samples of $\sim 600$ faint galaxies each, in two widely separated regions of the sky, including the Hubble Deep Field. One of the survey regions is configured so that some galaxy pairs span angular…

天体物理学 · 物理学 2009-10-31 David W. Hogg , Judith G. Cohen , Roger Blandford

Leveraging the datasets of galaxy triplets and large-scale filaments obtained from the Sloan Digital Sky Survey, we scrutinize the alignment of the three sides of the triangles formed by galaxy triplets and the normal vectors of the triplet…

星系天体物理 · 物理学 2024-03-21 Yu Rong , Jinzhi Shen , Zichen Hua

We estimate the distribution of apparent axis ratios $q$ for galaxies in the Sloan Digital Sky Survey (SDSS) Early Data Release. We divide the galaxies by profile type (de Vaucouleurs versus exponential) as well as by color ($u^* - r^* \leq…

天体物理学 · 物理学 2007-05-23 S. M. Khairul Alam , Barbara S. Ryden