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We investigate the clustering properties of Lyman-break galaxies (LBGs) at $z\sim6$ - $8$. Using the semi-analytical model {\scshape Meraxes} constructed as part of the Dark-ages Reionization And Galaxy-formation Observables from Numerical…

We use a sample of z~3 Lyman Break Galaxies (LBGs) to examine close pair clustering statistics in comparison to LCDM-based models of structure formation. Samples are selected by matching the LBG number density and by matching the observed…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-29 Joel C. Berrier , Jeff Cooke

As a result of resonant scatterings off hydrogen atoms, Lyman-alpha (Lya) emission from star-forming galaxies provides a probe of the (hardly isotropic) neutral gas environment around them. We study the effect of the environmental…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Zheng Zheng , Joshua Wallace

We perform cosmological simulations of galaxies forming at z=3 using the hydrodynamics grid code, Enzo. By selecting the largest galaxies in the volume to correspond to Lyman-break galaxies, we construct observational spectra of the HI flux…

Astrophysics · Physics 2009-11-11 Elizabeth J. Tasker , Greg L. Bryan

We present the basic data for a large ground-based spectroscopic survey for z~3 ``Lyman break galaxies'' (LBGs), photometrically selected using rest-UV colors from very deep images in 17 high Galactic latitude fields. The total survey…

Astrophysics · Physics 2009-11-07 C. C. Steidel , K. L. Adelberger , A. E. Shapley , M. Pettini , M. Dickinson , M. Giavalisco

We report results of deep optical spectroscopy with Subaru/FOCAS for Lyman Break Galaxy (LBG) candidates at z~5. So far, we made spectroscopic observations for 24 LBG candidates among ~200 bright (z'<25.0) LBG sample and confirmed 9 objects…

Astrophysics · Physics 2007-05-23 M. Ando , K. Ohta , I. Iwata , M. Akiyama , K. Aoki , N. Tamura

We present results of a large survey of the mid--IR properties of 248 Lyman Break Galaxies with confirmed spectroscopic redshift using deep Spitzer/IRAC observations in six cosmological fields. We model the Spectral Energy Distributions…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 G. E. Magdis , D. Rigopoulou , J-S Huang , G. Fazzio

We present spectroscopic properties of 22 Lyman-alpha emitters(LAEs) at z=5.5-6.6 with Lyman-alpha(Lya) luminosity log($L_{Lya}$[$ergs^{-1}$])=42.4-43.5, obtained using VLT/MUSE as part of the Middle Ages Galaxy Properties with Integral…

We use very large cosmological Smoothed-Particle-Hydrodynamics simulations to study the properties of high redshift Lyman-alpha emitters (LAEs). We identify star-forming galaxies at z=3.1 in a cosmological volume of 100 h^-1Mpc on a side.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Ikkoh Shimizu , Naoki Yoshida , Takashi Okamoto

A significant fraction of high redshift starburst galaxies presents strong Ly alpha emission. Understanding the nature of these galaxies is important to assess the role they played in the early Universe and to shed light on the relation…

Astrophysics of Galaxies · Physics 2015-05-13 L. Pentericci , A. Grazian , A. Fontana

The first large sample of Lyman Break Galaxies (LBGs) at z~1 is selected from GALEX Far-UV and Near-UV images of the Chandra Deep Field South. This multi-wavelength study is based on the wealth of data available in this field: SPITZER-MIPS…

Astrophysics · Physics 2007-05-23 D. Burgarella , P. Perez-Gonzalez , V. Buat , T. T. Takeuchi , S. Lauger , G. Rieke , O. Ilbert , ;

We report the observation of a further asymmetric, extended Lyman alpha emitting halo at z=2.63, from our ultra-deep, long-slit spectroscopic survey of faint high redshift emitters, undertaken with Magellan LDSS3 in the GOODS-S field. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Michael Rauch , George D. Becker , Martin G. Haehnelt , Jean-Rene Gauthier , Wallace L. W. Sargent

Understanding the morphological structures of Lyman-alpha emitters (LAEs) is crucial for unveiling their formation pathways and the physical origins of Ly$\alpha$ emission. However, the evolution of their sizes and structural scaling…

We present two uniformly observed spectroscopic samples of Ly-alpha emitters (LAEs) (127 at z = 5.7 and 82 at z = 6.6), which we use to investigate the evolution of the LAE population at these redshifts. The observations cover a large field…

Astrophysics of Galaxies · Physics 2024-07-15 A. Songaila , L. L. Cowie , A. J. Barger , E. M. Hu , A. J. Taylor

Lyman break galaxies (LBGs) at $z \sim 3$ exhibit number densities and clustering similar to local $L_*$ galaxies; however, their star formation rates (SFRs) are much higher. We explore the scenario in which LBGs are starburst galaxies…

We examine the dust geometry and Ly{\alpha} scattering in the galaxies of the Lyman Alpha Reference Sample (LARS), a set of 14 nearby (0.02 < $z$ < 0.2) Ly{\alpha} emitting and starbursting systems with Hubble Space Telescope Ly{\alpha},…

One of the current challenges in galaxy evolution studies is to establish the mechanisms that govern the escape of ionizing radiation from galaxies. Here, we investigate the connection between Lyman Continuum (LyC) escape and the conditions…

We report the detection of significant Lyman continuum flux in the composite spectrum of 29 Lyman break galaxies (LBGs) with redshifts <z> = 3.40+/-0.09. After correction for opacity due to intervening absorption using a new composite QSO…

Astrophysics · Physics 2009-10-31 C. C. Steidel , M. Pettini , K. L Adelberger

In the near future galaxy surveys will target Lyman alpha emitting galaxies (LAEs) to unveil the nature of the dark energy. It has been suggested that the observability of LAEs is coupled to the large scale properties of the intergalactic…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-27 S. Gurung-Lopez , Alvaro A. Orsi , Silvia Bonoli , Nelson Padilla , Cedric G. Lacey , Carlton M. Baugh

We use the observed sizes and star formation rates of Lyman-break galaxies (LBGs) to understand their properties expected in the hierarchical scenario of galaxy formation. The observed size distribution constrains the masses of the host…

Astrophysics · Physics 2009-11-06 Chenggang Shu , Shude Mao , H. J. Mo