Results 81 to 90 of about 252,176 (198)
A Survey of Lyα Emission around Damped Lyα Absorbers at z ≈ 2 with the Keck Cosmic Web Imager
The Astrophysical JournalWe present Keck Cosmic Web Imager Ly α integral field spectroscopy of the fields surrounding 14 damped Ly α absorbers (DLAs) at z ≈ 2. Of these 14 DLAs, nine have high metallicities ([M/H] > − 0.3), and four of those nine feature a CO-emitting galaxy at ...
Grecco A. Oyarzún +5 more
doaj +1 more source
Lyman Break Galaxies at z~5: Rest-frame UV Spectra II
, 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
Observational Searches for Galaxies at z > 6
, 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
Neutral Gas Properties and Lyα Escape in Extreme Green Pea Galaxies [PDF]
Astrophysical Journal, 2019 Mechanisms regulating the escape of Lyα photons and ionizing radiation remain poorly understood. To study these processes, we analyze Very Large Array 21 cm observations of one Green Pea (GP), J160810+352809 (hereafter J1608), and Hubble Space Telescope ...
J. McKinney +5 more
semanticscholar +1 more source
Early Results from GLASS-JWST. XXIII. The Transmission of Lyα from UV-faint z ∼ 3–6 Galaxies
The 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
Astrophysical Journal, 2020 We demonstrate the redshift evolution of the spectral profile of H i Lyα emission from star-forming galaxies. In this first study we pay special attention to the contribution of blueshifted emission.
M. Hayes +3 more
semanticscholar +1 more source
Three Lyα Emitting Galaxies within a Quasar Proximity Zone at z ∼ 5.8 [PDF]
Astrophysical Journal, 2019 Quasar proximity zones at correspond to overdense and overionized environments. Galaxies found inside proximity zones can therefore display features that would otherwise be masked by absorption in the intergalactic medium.
S. Bosman +5 more
semanticscholar +1 more source
Absorption Troughs of Lyα Emitters in HETDEX
The Astrophysical JournalThe 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
The Astrophysical Journal, 2023 We present cosmological-scale three-dimensional neutral hydrogen (H i ) tomographic maps at z = 2–3 over a total of 837 deg ^2 in two blank fields that are developed with Ly α forest absorptions of 14,736 background Sloan Digital Sky Survey (SDSS ...
Dongsheng Sun +14 more
doaj +1 more source
The physical properties of Lyalpha emitting galaxies: not just primeval galaxies?
, 2008 We have analyzed a sample of LBGs from z =3.5 to z=6 selected from the GOODS-S field as B,V and i-dropouts, and with spectroscopic observations showing that they have the Lyalpha line in emission.
A. Fontana +59 more
core +1 more source