Results 131 to 140 of about 48,997 (217)

Discovery of Diffuse Radio Emission in a Massive z = 1.709 Cool Core Cluster: A Candidate Radio Minihalo

open access: yesThe Astrophysical Journal Letters
Clusters of galaxies host spectacular diffuse radio sources, extending over scales from 100 kpc to several Mpcs. These sources, with extremely faint surface brightness ( μ Jy/arcsec ^2 level), are not tied to individual galaxies but trace synchrotron ...
Julie HLavacek-Larrondo   +12 more
doaj   +1 more source

The Photometric Analysis of the Environment Around Two Dusty Star-forming Galaxies at z ∼ 2

open access: yesThe Astrophysical Journal
Studying the environments of dusty star-forming galaxies (DSFGs) provides insight into whether these luminous systems are reliable signposts of large-scale overdensities.
Joe Bhangal   +9 more
doaj   +1 more source

Cluster Candidates with Massive Quiescent Galaxies at z ∼ 2

open access: yesThe Astrophysical Journal
Galaxy clusters are crucial to understanding the role of the environment in galaxy evolution. However, due to their rarity, only a limited number of clusters have been identified at z  ≳ 2. In this paper, we report a discovery of seven cluster candidates
Tomokazu Kiyota   +9 more
doaj   +1 more source

Non-Separable Halo Bias from High-Redshift Galaxy Clustering

open access: yes
The halo model provides a powerful framework for interpreting galaxy clustering by linking the spatial distribution of dark matter haloes to the underlying matter distribution. A key assumption within the linear bias approximation of the halo model is that the halo bias between two halo populations is a separable function of the mass of each population.
Mons, Emy   +3 more
openaire   +2 more sources

Clustering analysis of medium-band selected high-redshift galaxies

open access: yes
Next-generation large-scale structure spectroscopic surveys will probe cosmology at high redshifts $(2.3 < z < 3.5)$, relying on abundant galaxy tracers such as Ly$α$ emitters (LAEs) and Lyman break galaxies (LBGs). Medium-band photometry has emerged as a potential technique for efficiently selecting these high-redshift galaxies. In this work, we
Ebina, H.   +59 more
openaire   +2 more sources

The emergence of globular clusters and globular-cluster-like dwarfs. [PDF]

open access: yesNature
Taylor ED   +9 more
europepmc   +1 more source

Extreme properties of a compact and massive accreting black hole host in the first 500 Myr. [PDF]

open access: yesNat Commun
Tripodi R   +31 more
europepmc   +1 more source

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