Lyman Break Galaxies at Redshiftz∼ 3: Survey Description and Full Data Set
نویسندگان
چکیده
منابع مشابه
Lyman Break Galaxies at Redshift Z∼3: Survey Description and Full Data Set
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 covers an area of 0.38 square degrees, and includes 2347 photometrically-selected candidate LBGs to an apparent RAB magnitude limit of 25.5. Approximately half of...
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We investigate the properties of 1088 Lyman Break Galaxies (LBGs) at z ∼ 3 selected from a ∼ 2.63 deg2 sub-region of the First Look Survey field using the ground-based multi-color data and the Spitzer Space Telescope mid-infrared data at 3–8 and 24 μm. With the wide area and the broad wavelength coverage, we sample a large number of “rare” u-band dropouts which are massive (M∗ > 10M⊙), allowing...
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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 present the results of a systematic study of the rest-frame UV spectroscopic properties of Lyman Break Galaxies (LBGs). The database of almost 1000 LBG spectra proves useful for constructing high S/N composite spectra. The composite spectrum of the entire sample reveals a wealth of features attributable to hot stars, H II regions, dust, and outflowing neutral and ionized gas. By grouping the...
متن کاملThe Angular Clustering of Lyman-break Galaxies at Redshift
We have measured the angular correlation function w(θ) for a sample of 871 Lyman-break galaxies (LBGs) in five fields at redshift z ∼ 3. Fitting the power-law Awθ −β to a weighted average of w(θ) from the five fields over the range 12 < ∼ θ < ∼ 330 arcsec, we find Aw ∼ 2 arcsec and β ∼ 0.9. The slope is, within the errors, the same as for galaxy samples in the local and intermediate redshift un...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/375772