Lyα emitters and Lyman-break galaxies: dichotomous twins
نویسندگان
چکیده
منابع مشابه
The Relation between Lyα Emitters and Lyman Break Galaxies
A significant fraction of high redshift starburst galaxies presents strong Lyα 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 between the narrow band selected Lyα emitters and the Lyman break galaxies: are the Lyα emitters a subset of the general LBG population? or do they represent the you...
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We report an ultra-high-resolution simulation that follows evolution from the earliest stages of galaxy formation through the period of dynamical relaxation. The bubble structures of gas revealed in our simulation (< 3 × 10 years) resemble closely the high-redshift Lyman α emitters (LAEs). After 10 years these bodies are dominated by stellar continuum radiation and look like the Lyman break gal...
متن کاملLyman-α Emitters and Lyman-break Galaxies at Z = 3− 6 in Cosmological Sph Simulations
We study the properties of Lyman-α emitters (LAEs) and Lyman-break galaxies (LBGs) at z = 3−6 using cosmological SPH simulations. We investigate two simple scenarios for explaining the observed Lyα and rest-frame UV luminosity functions (LFs) of LAEs: (i) the “escape fraction” scenario, in which the effective escape fraction (including the IGM attenuation) of Lyα photons is fLyα ≈ 0.1 (0.15) at...
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We carried out a target survey for Lyman break galaxies (LBGs) and Lyman α emitters (LAEs) around QSO SDSS J0211-0009 at z = 4.87. The deep and wide broadband and narrowband imaging simultaneously revealed the perspective structure of these two high-z populations. The LBGs without Lyα emission form a filamentary structure including the QSO, while the LAEs are distributed around the QSO but avoi...
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In 2000, we started the program “Building the Bridge between Damped Lyman-α Absorbers and LymanBreak Galaxies: Lyα Selection of Galaxies” at the European Southern Observatory’s Very Large Telescope (VLT). This project is an attempt to use the Lyα selection of high-redshift galaxies to bridge the gap between absorptionand emission-line selected galaxies by creating a large database of z ≈ 3 gala...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2012
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2012.20486.x