Discovery of six Lyα emitters near a radio galaxy at z ∼ 5.2
Bram Venemans,H. J. A. Röttgering,Roderik Overzier,G. K. Miley,C. De Breuck,J. D. Kurk,W. van Breugel,Chris Carilli,Holland C. Ford,Timothy M. Heckman,Patrick J. McCarthy,Laura Pentericci +11 more
Reads0
Chats0
TLDR
In this paper, the authors presented the results of narrow-band and broad-band imaging with the Very Large Telescope* of the field surrounding the radio galaxy TN J0924-2201 at z = 5.2.Abstract:
We present the results of narrow-band and broad-band imaging with the Very Large Telescope* of the field surrounding the radio galaxy TN J0924-2201 at z = 5.2. Fourteen candidate Lya emitters with a rest-frame equivalent width of >20 A were detected. Spectroscopy of 8 of these objects showed that 6 have redshifts similar to that of the radio galaxy. The density of emitters at the redshift of the radio galaxy is estimated to be a factor 1.5-6.2 higher than in the field, and comparable to the density of Lya emitters in radio galaxy protoclusters at z = 4.1, 3.1 and 2.2. The Lya emitters near TN J0924-2201 could therefore be part of a structure that will evolve into a massive cluster. These observations confirm that substantial clustering of Lyα emitters occurs at z > 5 and support the idea that radio galaxies pinpoint high density regions in the early Universe.read more
Citations
More filters
Journal ArticleDOI
Distant radio galaxies and their environments
George K. Miley,Carlos De Breuck +1 more
TL;DR: In this article, the properties and nature of luminous high-redshift radio galaxies (HzRGs, z > 2) and the environments in which they are located are discussed.
Journal ArticleDOI
Protoclusters associated with z > 2 radio galaxies - I. Characteristics of high redshift protoclusters
Bram Venemans,H. J. A. Röttgering,G. K. Miley,W. van Breugel,W. van Breugel,C. De Breuck,Jaron Kurk,Laura Pentericci,S. A. Stanford,S. A. Stanford,Roderik Overzier,Steve Croft,Steve Croft,Holland C. Ford +13 more
TL;DR: In this article, the authors presented the results of a large program conducted with the Very Large Telescope and augmented by observations with the Keck telescope to search for forming clusters of galaxies near powerful radio galaxies at 2.5 and 3.0 GHz.
Journal ArticleDOI
3D Lyα radiation transfer III. Constraints on gas and stellar properties of z ∼ 3 Lyman break galaxies (LBG) and implications for high-z LBGs and Lyα emitters
TL;DR: In this article, a 3D Lyα radiation transfer code including gas and dust, MCLya, was used to fit 11 LBGs from the FORS Deep Field with redshifts between 2.8 and 5.2 for the gas extinction.
Journal ArticleDOI
3D Lyman-alpha radiation transfer. III. Constraints on gas and stellar properties of z~3 Lyman break galaxies (LBG) and implications for high-z LBGs and Lyman-alpha emitters(LAEs)
TL;DR: Verhamme et al. as discussed by the authors used a 3D Lya radiation transfer code including gas and dust to understand the variety of observed Lyman-alpha line profiles and strengths in Lyman Break Galaxies (LBGs) and Lya emitters (LAEs).
Journal ArticleDOI
Ancient Light from Young Cosmic Cities: Physical and Observational Signatures of Galaxy Proto-clusters
TL;DR: In this paper, the authors used cosmological simulations to track the evolution of dark matter and galaxies in about 3000 clusters from the earliest times to z = 0, and provided a general framework that will allow them to extend the study of cluster formation out to much higher redshifts using the large number of proto-clusters that are expected to be discovered in, e.g., the upcoming HETDEX and Hyper Suprime-Cam surveys.
References
More filters
Journal ArticleDOI
SExtractor: Software for source extraction
E. Bertin,E. Bertin,S. Arnouts +2 more
TL;DR: The SExtractor ( Source Extractor) as mentioned in this paper is an automated software that optimally detects, deblends, measures and classifies sources from astronomical images, which is particularly suited to the analysis of large extragalactic surveys.
Journal ArticleDOI
The Star formation history of field galaxies
TL;DR: In this paper, the authors developed a method for interpreting faint galaxy data which focuses on the integrated light radiated from the galaxy population as a whole by tracing the evolution with cosmic time of the galaxy luminosity density, as determined from several deep spectroscopic samples.
Journal ArticleDOI
Radiative transfer in a clumpy universe: The colors of high-redshift galaxies
TL;DR: In this article, the effects of the stochastic attenuation produced by intervening QSO absorption systems on the broadband colors of galaxies at cosmological distances were assessed, including scattering in resonant lines, such as Lyman alpha, Lyman gamma, and higher order members, and Lyman-continuum absorption.
Journal ArticleDOI
Lyman Alpha Imaging of a Proto-Cluster Region at =3.09
TL;DR: In this article, the authors presented very deep imaging observations, through a narrow-band filter tuned to Lyman alpha at, of a volume containing a significant over-density of galaxies at this redshift previously discovered in our survey for continuum-selected Lyman break galaxies (LBGs), and used these observations to compare the effectiveness of continuum and emission line searches for star forming galaxies at high redshift, and to extend the search for members of the structure at = 3.09 to much fainter continuum luminosities.
Journal ArticleDOI
Lyα Imaging of a Proto-Cluster Region at ⟨z⟩ = 3.09*
Charles C. Steidel,Kurt L. Adelberger,Alice E. Shapley,Max Pettini,Mark Dickinson,Mauro Giavalisco +5 more
TL;DR: In this article, the authors presented very deep narrowband observations of a volume containing a significant overdensity of galaxies previously discovered in a survey for continuum-selected Lyman-break galaxies (LBGs) at redshifts 2.7 z 3.4.