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相关论文: The Stellar Populations of Lyman Break Galaxies at…

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We report results from a search for massive and evolved galaxies at z>5 in the GOODS southern field. Combining HST ACS, VLT ISAAC and Spitzer IRAC photometric data, we develop a color selection technique to identify candidates for being…

天体物理学 · 物理学 2009-11-13 T. Wiklind , M. Dickinson , H. C. Ferguson , M. Giavalisco , B. Mobasher , N. A. Grogin , N. Panagia

We use deep GALEX images of CDFS in UV to define the first large sample of 420 Lyman Break Galaxies at z~1. We use a PSF fitting to estimate UV magnitudes on these deep crowded images. Deep Spitzer IRAC and MIPS provide the first detection…

天体物理学 · 物理学 2007-05-23 D. Burgarella , E. Le Floc'h , T. T. Takeuchi , V. Buat , J. S. Huang , G. H. Rieke , K. D. Tyler

We present our analysis of UV attenuation by internal dust of a large sample (N=906 galaxies) of Lyman Break Galaxies (LBGs). Using spectral energy distributions (SEDs) from the P\'EGASE galaxy spectral evolution model we apply dust…

天体物理学 · 物理学 2009-11-07 Uma P. Vijh , Adolf N. Witt , Karl D. Gordon

(ABRIDGED) We present the global results of a large spectroscopic survey carried out in order to identify z~ 5 Lyman break galaxies (LBGs) across ten widely-separated fields to I_{AB}=26.3. The redshifts of seventy 4.6<z<5.6 LBGs were…

宇宙学与河外天体物理 · 物理学 2015-05-19 L. S. Douglas , M. N. Bremer , M. D. Lehnert , E. R. Stanway , Bo Milvang-Jensen

We predict the formation histories, properties and descendants of Lyman-break galaxies (LBGs) in the Lambda-CDM cosmology. In our model, which incorporates a top-heavy IMF in starbursts, we find that most LBGs are starbursts triggered by…

宇宙学与河外天体物理 · 物理学 2015-05-28 Juan E. Gonzalez , C. G. Lacey , C. M. Baugh , C. S. Frenk , A. J. Benson

We combined deep U-band imaging from the KPNO-4m/MOSAIC camera with very deep multi-waveband data from the optical to infrared, to select Lyman Break Galaxies (LBGs) at z~3 using U-V and V-R colors in the Subaru Deep Field. With the…

(Abridged) We extend our previous studies aimed at modeling Lyman Alpha Emitters (LAEs) to the second population of high redshift sources, Lyman Break Galaxies (LBGs), with the final goal of investigating the physical relationship between…

宇宙学与河外天体物理 · 物理学 2015-05-30 Pratika Dayal , Andrea Ferrara

We present a multi-wavelength, UV-to-radio analysis for a sample of massive (M$_{\ast}$ $\sim$ 10$^{10}$ M$_\odot$) IRAC- and MIPS 24$\mu$m-detected Lyman Break Galaxies (LBGs) with spectroscopic redshifts z$\sim$3 in the GOODS-North field…

We use data from the first epoch of observations with the IRAC/Spitzer for the GOODS to detect and study a collection of LBGs at z ~ 6 to 5 in the HUDF, six of which have spectroscopic confirmation. At these redshifts, IRAC samples…

We present deep HST near-IR and Spitzer mid-IR observations of a large sample of spectroscopically-confirmed galaxies at z >= 6. The sample consists of 51 Lyman-alpha emitters (LAEs) at z ~ 5.7, 6.5, and 7.0, and 16 Lyman-break galaxies…

We present a detailed stellar population analysis of 11 bright ($H<26.6$) galaxies at $z=9-11$ (three spectroscopically confirmed) to constrain the chemical enrichment and growth of stellar mass of early galaxies. We use the flexible…

We discuss the properties of Lyman Break galaxies (LBGs) at z>5 as determined from disparate fields covering approximately 500 sq. arcmin. While the broad characteristics of the LBG population has been discussed extensively in the…

天体物理学 · 物理学 2007-08-23 M. D. Lehnert , M. Bremer , A. Verma , L. Douglas , N. Forster Schreiber

Near-infrared observations of Lyman-break galaxies at redshifts z~3 are beginning to provide constraints on ages, star-formation histories, dust content, metallicities, and stellar masses. At present, uncertainties of more than an order of…

天体物理学 · 物理学 2009-11-07 Henry C. Ferguson , Mark Dickinson , Casey Papovich

Deep rest-optical observations are required to accurately constrain the stellar populations of $z\sim8$ galaxies. Due to significant limitations in the availability of such data for statistically complete samples, observational results have…

We constrain the space density and properties of massive galaxy candidates at redshifts of z>=3.5 in the GOODS-N field. By selecting sources in the Spitzer+IRAC bands, a highly stellar mass-complete sample is assembled,including massive…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Mancini , I. Matute , A. Cimatti , E. Daddi , M. Dickinson , G. Rodighiero , M. Bolzonella , L. Pozzetti

We use state-of-the-art simulations to explore the physical evolution of galaxies in the first billion years of cosmic time. First, we demonstrate that our model reproduces the basic statistical properties of the observed Lyman-break galaxy…

宇宙学与河外天体物理 · 物理学 2015-06-12 Pratika Dayal , James S. Dunlop , Umberto Maio , Benedetta Ciardi

We present the results of a near-infrared imaging survey of z~3 Lyman Break Galaxies (LBGs). The survey covers a total of 30 arcmin^2 and includes 118 photometrically selected LBGs with K_s band measurements, 63 of which also have J band…

天体物理学 · 物理学 2009-07-28 A. E. Shapley , C. C. Steidel , K. L. Adelberger , M. Dickinson , M. Giavalisco , M. Pettini

We make a detailed investigation of the properties of Lyman-break galaxies (LBGs) in the LambdaCDM model. We present predictions for two published variants of the GALFORM semi-analytical model: the Baugh et al. (2005) model, which has star…

宇宙学与河外天体物理 · 物理学 2015-05-18 C. G. Lacey , C. M. Baugh , C. S. Frenk , A. J. Benson , .

The number density and clustering properties of Lyman-break galaxies (LBGs) observed at redshift $z\sim 3$ are best explained by assuming that they are associated with the most massive haloes at $z\sim 3$ predicted in hierarchical models of…

天体物理学 · 物理学 2007-05-23 Chenggang Shu

We use a robust sample of 11 z~7 galaxies (z-dropouts) to estimate the stellar mass density of the universe when it was only ~750 Myr old. We combine the very deep optical to near-Infrared photometry from the HST ACS and NICMOS cameras with…

宇宙学与河外天体物理 · 物理学 2014-11-20 Valentino Gonzalez , Ivo Labbe , Rychard J. Bouwens , Garth Illingworth , Marijn Franx , Mariska Kriek , Gabriel B. Brammer