Results 131 to 140 of about 16,096,383 (218)

Galaxy clustering and galaxy clusters from the UKIDSS DXS [PDF]

, 2011
Recent wide and deep surveys allow us to investigate the large scale structure of the Universe at high redshift. We present studies of the clustering of high redshift galaxies and galaxy clusters, using reprocessed UKIDSS DXS catalogues.
Kim, Jae Woo, KIM, JAE,WOO
core  

The Massive and Distant Clusters of WISE Survey 2: Detection of Splashback Radii in Galaxy Cluster Total Light Stacks

The Astrophysical Journal
The splashback radius, the radius of the apocenter of the first orbit of infalling material, is a measurable quantity marking the boundary between a galaxy cluster and its infalling region.
A. Trudeau, Anthony H. Gonzalez, K. Thongkham, M. Brodwin, Thomas Connor, Peter R. M. Eisenhardt, Emily Moravec, S. A. Stanford, D. Stern   +8 more
doaj   +1 more source

Optical Identifications of High-Redshift Galaxy Clusters from the Planck Sunyaev–Zeldovich Survey

, 2020
© 2018, Pleiades Publishing, Inc. We present the results of optical identifications and spectroscopic redshift measurements for galaxy clusters from the second Planck catalogue of Sunyaev–Zeldovich sources (PSZ2) located at high redshifts, z ≈ 0.7−0.9 ...

core  

Origin and Evolution of Large-scale Magnetic Fields [PDF]

, 2015
Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core  

Multiobject Spectroscopy of Galaxy Clusters at z ∼ 0.95 in the Ultra Deep Survey Field with Different Star Formation Properties and Large-scale Environments

The Astrophysical Journal Supplement Series
While galaxy clusters are dominated by quiescent galaxies in the local Universe, they show a wide range in quiescent galaxy fraction (QF) at higher redshifts.
Seong-Kook Lee, Myungshin Im, Bomi Park, Minhee Hyun, Insu Paek, Dohyeong Kim   +5 more
doaj   +1 more source

Towards AMR Simulations of Galaxy Formation [PDF]

, 2010
Numerical simulations present a fundamental building block of our modern theoretical understanding of the Universe. As such the work in this thesis is primarily concerned with understanding fundamental differences that lie between the different ...
MITCHELL, NIGEL,LEWIS, Mitchell, Nigel Lewis   +1 more
core  

Cosmology with extreme galaxy clusters [PDF]

This thesis describes the use of the rarest high-mass and high-redshift galaxy clusters to constrain cosmology, with a particular focus on the methodology of Extreme Value Statistics (EVS).
Harrison, Ian
core   +3 more sources

Revealing the Quiescent Galaxy Population in the Spiderweb Protocluster at z = 2.16 with Deep HST/WFC3 Slitless Spectroscopy

The Astrophysical Journal
We report the Hubble Space Telescope Wide Field Camera 3 G141 grism slitless spectroscopy observation of the core region of the Spiderweb protocluster at z = 2.16.
Abdurrahman Naufal, Yusei Koyama, Chiara D’Eugenio, Helmut Dannerbauer, Rhythm Shimakawa, Jose Manuel Pérez-Martínez, Tadayuki Kodama, Yuheng Zhang, Kazuki Daikuhara   +8 more
doaj   +1 more source

The evolution of radio galaxies - A VLA survey of high-redshift clusters of galaxies

The Astrophysical Journal, 1982
We present data from a VLA 1465 MHz survey of high-redshift galaxy clusters with redshifts of 0.25 to 0.9. We detect sources in 13 of 55 clusters. The sample shows strong evolution of the radio luminosity function (RLF) during this period even for weak cluster radio galaxies, i.e., those with 24 ...
openaire   +1 more source

Enhanced Gas-phase Metallicities and Suppressed Outflows for Galaxies in a Rich Cluster Core at Cosmic Noon

The Astrophysical Journal
We present the results of near-infrared spectroscopy using Keck/MOSFIRE for 23 member galaxies in the X-ray cluster XCS 2215 ( z = 1.46) to investigate the environmental dependence of gaseous flows and metallicities.
Kota Adachi, Tadayuki Kodama, Jose Manuel Pérez-Martínez, Tomoko L. Suzuki, Masato Onodera   +4 more
doaj   +1 more source