Results 151 to 160 of about 572 (187)

Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing. [PDF]

Space Sci Rev
Birrer S, Millon M, Sluse D, Shajib AJ, Courbin F, Erickson S, Koopmans LVE, Suyu SH, Treu T.   +8 more
europepmc   +1 more source

A massive compact quiescent galaxy at z = 2 with a complete Einstein ring in JWST imaging. [PDF]

Nat Astron
van Dokkum P, Brammer G, Wang B, Leja J, Conroy C.   +4 more
europepmc   +1 more source

Star formation shut down by multiphase gas outflow in a galaxy at a redshift of 2.45. [PDF]

Nature
Belli S, Park M, Davies RL, Mendel JT, Johnson BD, Conroy C, Benton C, Bugiani L, Emami R, Leja J, Li Y, Maheson G, Mathews EP, Naidu RP, Nelson EJ, Tacchella S, Terrazas BA, Weinberger R.   +17 more
europepmc   +1 more source

Characterizing the luminosity components of luminous infrared galaxies in multi-wavelength from the X-ray to the far-infrared. [PDF]

Sci Rep
Ali AAM, Gadallah KAK, Shalabiea OM, Beheary MM.   +3 more
europepmc   +1 more source

Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback

Eckert D, Gastaldello F, Lovisari L, McGee S, Pasini T, Brienza M, Kolokythas K, O'Sullivan E, Simionescu A, Sun M, Bourne M, Chen Y, Cui W, Ettori S, Finoguenov A, Gozaliasl G, Kale R, Mernier F, Oppenheimer B, Schellenberger G, Seppi R, Tempel E.   +21 more
europepmc   +1 more source

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Cluster Galaxies at High Redshift

1988
Modern CCD instrumentation has made it possible to obtain photometric and spectroscopic data on normal galaxies in clusters at redshifts up to nearly unity. In this paper we discuss a survey for such clusters and preliminary spectroscopic results for galaxies in a sample of 7 clusters near redshift 0.5, and another at z=0.75.
James E. Gunn, Alan Dressier
openaire   +1 more source

What are protoclusters? – Defining high-redshift galaxy clusters and protoclusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We explore the structures of protoclusters and their relationship with high redshift clusters using the Millennium Simulation combined with a semi-analytic model. We find that protoclusters are very extended, with 90 per cent of their mass spread across $\sim35\,h^{-1}{\rm Mpc}$ comoving at $z=2$ ($\sim30\, \rm{arcmin}$).
Nina Hatch, Elizabeth Cooke, Stuart I Muldrew   +2 more
exaly   +5 more sources

The High Redshift 3CR Radio Galaxies: CD Galaxies in High Redshift Clusters

1998
The old stellar populations of the 3CR radio galaxies at redshifts z ∼ 1 have been investigated using the HST and UKIRT. The radial intensity profiles of the galaxies are well matched out to radii τ ∼ 35kpc by de Vaucouleurs’ law with no requirement for an additional point source in all but two cases (3C22 and 3C41).
P. N. Best, H. J. A. Röttgering, M. S. Longair   +2 more
openaire   +1 more source

Evolution of Disk Galaxies in High-Redshift Clusters

1986
We propose an evolutionary scenario for spiral galaxies in rich, compact clusters. Interactions with the environment, probably dominated by the processes in the hot gaseous intergalactic medium, remove the gas from the disks of blue objects infalling into cluster cores from outer layers. Predictions are made for UBV colors of cluster spirals versus the
B. Guiderdoni, B. Rocca-Volmerange
openaire   +1 more source