Results 51 to 60 of about 14,388 (158)

Assembly of Massive Galaxies in a High-z Protocluster [PDF]

open access: yes, 2012
We present the results of wide-field deep JHK imaging of the SSA22 field using MOIRCS instrument equipped with Subaru telescope. The observed field is 112 arcmin^2 in area, which covers the z=3.1 protocluster characterized by the overdensities of Ly ...
Akiyama, Masayuki   +14 more
core   +2 more sources

Lyman Break Galaxies at z~5: Rest-frame UV Spectra II

open access: yes, 2007
We present the results of spectroscopy of Lyman Break Galaxies (LBGs) at z~5 in the J0053+1234 field with the Faint Object Camera and Spectrograph on the Subaru telescope. Among 5 bright candidates with z' < 25.0 mag, 2 objects are confirmed to be at z~5
Akiyama, Masayuki   +5 more
core   +1 more source

High redshift galaxies and the Lyman-alpha forest in a CDM universe

open access: yes, 2002
We use a cosmological hydrodynamic simulation of a cold dark matter universe to investigate theoretically the relationship between high redshift galaxies and the Lyman=alpha forest at redshift z=3.
Croft, Rupert A. C.   +4 more
core   +1 more source

The earliest galaxies seen in 21 cm line absorption [PDF]

open access: yes, 2010
We investigate the 21 cm absorption lines produced by non-linear structures during the early stage of reionization, i.e. the starless minihalos and the dwarf galaxies.
Chen, FERRARA. A., Xu, Xuelei, Yidong
core   +3 more sources

JWST Unveils the Bimodal Nature of Lyα Emitters at 3 < z < 7: Pristine versus Merger-driven Populations

open access: yesThe Astrophysical Journal
We present a systematic study of merging galaxies among Lyα emitters (LAEs) using James Webb Space Telescope/NIRCam high-resolution imaging data. From a large sample of 817 spectroscopically confirmed LAEs at 3  6 to 70% at z  
Jian Ren   +10 more
doaj   +1 more source

Clustering and lifetime of Lyman Alpha Emitters in the Epoch of Reionization

open access: yes, 2015
We calculate Lyman Alpha Emitter (LAE) angular correlation functions (ACFs) at $z \simeq 6.6$ and the fraction of lifetime (for the 100 Myrs preceding $z\simeq6.6$) galaxies spend as Lyman Break Galaxies (LBGs) or as LBGs with Lyman Alpha (Ly$\alpha ...
Dayal, Pratika   +2 more
core   +1 more source

Observational Searches for Galaxies at z > 6

open access: yes, 2016
Although the universe at redshifts greater than six represents only the first one billion years ( 6, with spectroscopically confirmed galaxies out to nearly z = 9.
Finkelstein, Steven L.
core   +1 more source

Early Results from GLASS-JWST. XXIII. The Transmission of Lyα from UV-faint z ∼ 3–6 Galaxies

open access: yesThe Astrophysical Journal, 2023
Ly α emission from galaxies can be used to trace neutral hydrogen in the epoch of reionization, however, there is a degeneracy between the attenuation of Ly α in the intergalactic medium (IGM) and the line profile emitted by the galaxy.
Gonzalo Prieto-Lyon   +20 more
doaj   +1 more source

A new model framework for circumgalactic Ly$\alpha$ radiative transfer constrained by galaxy-Ly$\alpha$ forest clustering [PDF]

open access: yes, 2018
We present a new perturbative approach to "constrained Ly$\alpha$ radiative transfer'" (RT) through the circum- and inter-galactic medium (CGM and IGM). We constrain the HI content and kinematics of the CGM and IGM in a physically motivated model, using ...
Dijkstra, Mark, Kakiichi, Koki
core   +2 more sources

Absorption Troughs of Lyα Emitters in HETDEX

open access: yesThe Astrophysical Journal
The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) is designed to detect and measure the redshifts of more than 1 million Ly α emitting galaxies (LAEs) 1.88 < z < 3.52. In addition to its cosmological measurements, these data enable studies of Ly
Laurel H. Weiss   +23 more
doaj   +1 more source

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