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相关论文: FLASH redshift survey - I. Observations and Catalo…

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We present a catalog of 74 galaxies detected serendipitously during a campaign of spectroscopic observations of the Hubble Deep Field North (HDF) and its environs. Among the identified objects are five candidate Ly-alpha emitters at z > 5,…

天体物理学 · 物理学 2009-11-06 Steve Dawson , Daniel Stern , Andrew J. Bunker , Hyron Spinrad , Arjun Dey

Peculiar velocities arise from gravitational instability, and thus are linked to the surrounding distribution of matter. In order to understand the motion of the Local Group with respect to the Cosmic Microwave Background, a deep all-sky…

宇宙学与河外天体物理 · 物理学 2015-03-13 Guilhem Lavaux , Michael J. Hudson

The Southern Abell Redshift Survey contains 39 clusters of galaxies with redshifts in the range 0.0 < z < 0.31 and a median redshift depth of z = 0.0845. SARS covers the region 0 < decl < -65 deg, R.A. < 5h, R.A. > 21h (while avoiding the…

天体物理学 · 物理学 2008-11-26 M. J. Way , H. Quintana , L. Infante , D. G. Lambas , H. Muriel

Based on a recent photometric redshift galaxy catalogue, we have searched for galaxy clusters in the Stripe~82 region of the Sloan Digital Sky Survey by applying the Adami & MAzure Cluster FInder (AMACFI). Extensive tests were made to…

Clusters of galaxies in most previous catalogs have redshifts z<0.3. Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we identify 39,668 clusters in the redshift range 0.05< z <0.6…

宇宙学与河外天体物理 · 物理学 2014-11-20 Z. L. Wen , J. L. Han , F. S. Liu

The XMM Cluster Archive Super Survey (X-CLASS) is a serendipitously-detected X-ray-selected sample of 845 galaxy clusters based on 2774 XMM archival observations and covering approximately 90 deg$^2$ spread across the high-Galactic latitude…

宇宙学与河外天体物理 · 物理学 2017-04-12 J. Ridl , N. Clerc , T. Sadibekova , L. Faccioli , F. Pacaud , J. Greiner , T. Krühler , A. Rau , M. Salvato , M. -L. Menzel , H. Steinle , P. Wiseman , K. Nandra , J. Sanders

This paper presents the identification of galaxy clusters from the photometric redshift catalog based on three imaging surveys of SCUSS, SDSS, and unWISE. By applying a fast clustering algorithm, we obtain a total of 19,610 clusters in the…

星系天体物理 · 物理学 2020-01-22 Jinghua Gao , Hu Zou , Xu Zhou , Xu Kong

A two-band (B and V) wide-field imaging survey of a complete, all-sky X-ray selected sample of 78 clusters in the redshift range z=0.04-0.07 is presented. The aim of this survey is to provide the astronomical community with a complete set…

天体物理学 · 物理学 2007-05-23 G. Fasano , B. Poggianti , D. Bettoni , E. Pignatelli , C. Marmo , M. Moles , P. Kjaergaard , J. Varela , W. Couch , A. Dressler

We present a catalog of spectro-photometric redshifts for 1308 galaxies from the GRism ACS Program for Extragalactic Science (GRAPES) observations with the Hubble Space Telescope. These low-resolution spectra between 6000 A and 9500 A are…

The Las Campanas Redshift Survey (LCRS) consists of 26418 redshifts of galaxies selected from a CCD-based catalog obtained in the $R$ band. The survey covers over 700 square degrees in 6 strips, each 1.5$\arcdeg$ x 80$\arcdeg$, three each…

In this paper we present a deep and homogeneous i-band selected multi-waveband catalogue in the COSMOS field covering an area of about 0.7 square-degree. Our catalogue with a formal 50 percent completeness limit for point sources of i~26.7…

天体物理学 · 物理学 2009-11-13 A. Gabasch , Y. Goranova , U. Hopp , S. Noll , M. Pannella

We present a catalog of detailed visual classifications for 14034 galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4). Our sample includes nearly all spectroscopically-targeted galaxies in the redshift range 0.01<z<0.1 down…

宇宙学与河外天体物理 · 物理学 2015-05-18 Preethi B. Nair , Roberto G. Abraham

Accurate photometric redshifts are calculated for nearly 200,000 galaxies to a 4.5 micron flux limit of ~13 uJy in the 8.5 deg^2 Spitzer/IRAC Shallow survey. Using a hybrid photometric redshift algorithm incorporating both neural-net and…

We present strong evidence for the existence of a supercluster at a redshift of z=0.54 in the direction of Selected Area 68. From the distribution of galaxies with spectroscopic redshifts we find that there is a large over-density of…

天体物理学 · 物理学 2009-10-28 A. J. Connolly , A. S. Szalay , D. C. Koo , A. K. Romer , B. Holden , R. C. Nichol , T. Miyaji

HectoMAP is a dense redshift survey of 95,403 galaxies based primarily on MMT spectroscopy with a median redshift $z = 0.345$. The survey covers 54.64 square degrees in a 1.5$^\circ$ wide strip across the northern sky centered at a…

宇宙学与河外天体物理 · 物理学 2023-03-15 Jubee Sohn , Margaret J. Geller , Ho Seong Hwang , Daniel G. Fabricant , Yousuke Utsumi , Ivana Damjanov

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

Three galaxy redshifts surveys and their analyses are discussed. (i) The recently completed Optical Redshift Survey (ORS) includes galaxies larger than 1.9 arcmin and/or brighter than $14.5^m$. It provides redshifts for $\sim 8300 $…

天体物理学 · 物理学 2007-05-23 Ofer Lahav

We present the galaxy group catalogue for the recently-completed 2MASS Redshift Survey (2MRS, Macri2019) which consists of 44572 redshifts, including 1041 new measurements for galaxies mostly located within the Zone of Avoidance. The galaxy…

星系天体物理 · 物理学 2020-07-15 T. S. Lambert , R. C. Kraan-Korteweg , T. H. Jarrett , L. M. Macri

We extend the halo-based group finder developed by \citet[][]{Yang2005a} to use data {\it simultaneously} with either photometric or spectroscopic redshifts. A mock galaxy redshift survey constructed from a high-resolution N-body simulation…

Based on the photometric redshift catalog of Zou H. et al. (2019), we apply a fast clustering algorithm to identify 540,432 galaxy clusters at $z\lesssim1$ in the DESI legacy imaging surveys, which cover a sky area of about 20,000 deg$^2$.…

星系天体物理 · 物理学 2021-04-21 Hu Zou , Jinghua Gao , Xin Xu , Xu Zhou , Jun Ma , Zhimin Zhou , Tianmeng Zhang , Jundan Nie , Jiali Wang , Suijian Xue