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相关论文: A 2 x 2 Degree I-band Survey around PKS 1343-601

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This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high…

天体物理学 · 物理学 2009-11-10 J. Borissova , V. D. Ivanov , D. Minniti , D. Geisler , A. W. Stephens

We report the discovery of 47 low surface brightness objects in deep images of a 3 x 3 degree field centered on the Coma cluster, obtained with the Dragonfly Telephoto Array. The objects have central surface brightness mu(g,0) ranging from…

星系天体物理 · 物理学 2015-06-23 Pieter van Dokkum , Roberto Abraham , Allison Merritt , Jielai Zhang , Marla Geha , Charlie Conroy

Using a combination of near-infrared and optical photometry, along with multi-object spectroscopy, we have confirmed the existence of a high-redshift cluster of galxies at z = 0.96. The cluster was found using a wide-angle tailed radio…

We report the discovery of a previously unknown massive Galactic star cluster at l=29.22, b=-0.20. Identified visually in mid-IR images from the Spitzer GLIMPSE survey, the cluster contains at least 8 late-type supergiants, based on…

We report the discovery of an IR-selected massive galaxy cluster in the IRAC Distant Cluster Survey (IDCS). We present new data from the Hubble Space Telescope and the W. M. Keck Observatory that spectroscopically confirm IDCS J1426+3508 at…

宇宙学与河外天体物理 · 物理学 2015-06-05 S. A. Stanford , M. Brodwin , Anthony H. Gonzalez , Greg Zeimann , Daniel Stern , Arjun Dey , P. R. Eisenhardt , Gregory F. Snyder , C. Mancone

We present 8 bright globular clusters and/or objects of less familiar nature which we found in the course of scrutinizing the globular cluster system of NGC 1399. These objects are morphologically striking, either by their sizes or by other…

天体物理学 · 物理学 2009-11-11 T. Richtler , B. Dirsch , S. Larsen , M. Hilker , L. Infante

We present the basic properties of three objects near the Galactic Plane - a large galaxy and two candidate globular clusters - discovered in the Two Micron All Sky Survey (2MASS) dataset. All were noted during spot-checks of the data…

We report the discovery of large-scale diffuse radio emission from what appears to be a large-scale filamentary network of galaxies in the region of cluster ZwCl 2341.1+0000, and stretching over an area of at least $6 h^{-1}_{50}$ Mpc in…

Taking advantage of the impressive sensitivity of Spitzer to detect massive galaxies at high redshift, we study the mid-infrared environments of powerful, high-redshift radio galaxies at 1.2<z<3. Galaxy cluster member candidates were…

We identify 47,600 clusters of galaxies from photometric data of Two Micron All Sky Survey (2MASS), Wide-field Infrared Survey Explorer (WISE), and SuperCOSMOS, among which 26,125 clusters are recognized for the first time and mostly in the…

星系天体物理 · 物理学 2018-01-31 Z. L. Wen , J. L. Han , F. Yang

We present a catalog of 105 rich and massive ($M>3\times10^{14}M_{\sun}$) optically-selected clusters of galaxies extracted from 70 square-degrees of public archival griz imaging from the Blanco 4-m telescope acquired over 45 nights between…

The results of the searching on the bases of GPS UKIDSS survey's data of dense compact stellar clusters in the vicinity of 20 YSOs with high and middle masses are presented. Totally we have revealed clusters in 13 areas. Around 5 objects…

太阳与恒星天体物理 · 物理学 2015-12-29 N. M. Azatyan , E. H. Nikoghosyan

We present the first high-redshift galaxy cluster candidate sample from the HIROCS survey found in the COSMOS field. It results from a combination of public COSMOS with proprietary H-band data on a 0.66 square degree part of the COSMOS…

天体物理学 · 物理学 2009-11-13 M. Zatloukal , H. -J. Röser , C. Wolf , H. Hippelein , S. Falter

We present the detection of weak gravitational lensing in the field of the radio galaxy 3C324 (z=1.206) using deep HST imaging. ~From an analysis of the shapes of faint R=24.5-27.5 galaxies in the field we measure a weak, coherent…

天体物理学 · 物理学 2009-10-28 Ian Smail , Mark Dickinson

To further our understanding of the Great Attractor (GA), we have undertaken a redshift survey using the 2dF on the AAT. Clusters and filaments in the GA region were targeted with 25 separate pointings resulting in approximately 2600 new…

天体物理学 · 物理学 2009-11-11 D. J. Radburn-Smith , J. R. Lucey , P. A. Woudt , R. C. Kraan-Korteweg , F. G. Watson

We present results of a blind 21cm HI-line imaging survey of a galaxy overdensity located behind the Milky Way at $\ell,b$ $\approx$ 160 deg, 0.5 deg. The overdensity corresponds to a Zone-of-Avoidance crossing of the Perseus-Pisces…

We report on our search for distant clusters of galaxies based on optical and X-ray follow up observations of X-ray candidates from the SHARC survey. Based on the assumption that the absence of bright optical or radio counterparts to…

天体物理学 · 物理学 2009-11-13 C. Adami , M. P. Ulmer , F. Durret , G. Covone , E. Cypriano

We present results from multi-band observations in the central region of the cluster NGC6712 with the ESO-Very Large Telescope. Using high resolution images we have identified three UV-excess stars. In particular two of them are within the…

天体物理学 · 物理学 2009-10-31 Francesco R. Ferraro , Barbara Paltrinieri , Francesco Paresce , Guido De Marchi

We present new Hubble Space Telescope/Wide Field Camera 3 G141 grism observations for COBRA1411+3415, originally identified as a high-redshift cluster candidate in the Clusters Occupied by Bent Radio AGN (COBRA) survey using radio,…

The Multibeam survey at the Parkes Radio Telescope has provided a wealth of 21 cm HI data. We have mosaicked ten standard HIPASS cubes to produce a datacube approximately 25 deg x 25 deg in size, centred on NGC1399, the optical centre of…

天体物理学 · 物理学 2007-05-23 M. Waugh , R. L. Webster , M. J. Drinkwater