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We derive the luminosity function of high-redshift Lyman alpha emitting sources from a deep, blind, spectroscopic survey that utilized strong-lensing magnification by intermediate-redshift clusters of galaxies. We observed carefully…

The recent discovery of enormous Ly$\alpha$ nebulae (ELANe), characterized by physical extents $>200$ kpc and Ly$\alpha$ luminosities $>10^{44}$ erg s$^{-1}$, provide a unique opportunity to study the intergalactic and circumgalactic medium…

Deep narrow-band surveys have revealed a large population of faint Lyman-alpha (Lya) emitters (LAEs) in the distant Universe, but relatively little is known about the most luminous sources ($L_{Ly\alpha}>10^{42.7}$ erg/s;…

We report results of a unprecedentedly deep, blind search for Ly-alpha emitters (LAEs) at z = 5.7 using IMACS, the Inamori-Magellan Areal Camera & Spectrograph, with the goal of identifying missing sources of reionization that could also be…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Alan Dressler , Crystal L. Martin , Alaina Henry , Marcin Sawicki , Patrick McCarthy

HST ACS and NICMOS data are now of sufficient depth and areal coverage to place strong constraints on the formation and evolution of galaxies during the first 1-2 Gyrs of the universe. Of particular interest are galaxies at z~6 since they…

Astrophysics · Physics 2007-05-23 Rychard J. Bouwens , Garth D. Illingworth

(abridged) We report the UV luminosity function (LF) of Lyman break galaxies at z~5 derived from a deep and wide survey using the Subaru/Suprime-Cam. Target fields consist of two blank regions of the sky (the HDF-N and J0053+1234), and the…

Astrophysics · Physics 2008-11-26 I. Iwata , K. Ohta , N. Tamura , M. Akiyama , K. Aoki , M. Ando , G. Kiuchi , M. Sawicki

We search for evidence of diffuse Ly-alpha emission from extended neutral hydrogen surrounding Ly-alpha emitting galaxies (LAEs) using deep narrow-band images of the Extended Chandra Deep Field South. By stacking the profiles of 187 LAEs at…

We use deep Hubble Space Telescope imaging of the Frontier Fields to accurately measure the galaxy rest-frame ultraviolet luminosity function (UV LF) in the redshift range $z \sim 6-8$. We combine observations in three lensing clusters…

Using CLARA (Code for Lyman Alpha Radiation Analysis) we constrain the escape fraction of Lyman-Alpha radiation in galaxies in the redshift range 5<z<7, based on the MareNostrum High-z Universe, a SPH cosmological simulation with more than…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 J. E. Forero-Romero , G. Yepes , S. Gottloeber , S. R. Knollmann , A. J. Cuesta , F. Prada

We selected 40 candidate Lyman Alpha Emitting galaxies (LAEs) at z ~=3.1 with observed frame equivalent widths >150A and inferred emission line fluxes >2.5x10^-17 ergs/cm^2/s from deep narrow-band and broad-band MUSYC images of the Extended…

We present a narrowband survey with three adjacent filters for z=2.8--2.9 Lyman Alpha Emitter (LAE) galaxies in the Extended Chandra Deep Field South (ECDFS), along with spectroscopic followup. With a complete sample of 96 LAEs in the…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-26 Zhen-Ya Zheng , Sangeeta Malhotra , James E. Rhoads , Steven L. Finkelstein , Jun-Xian Wang , Chun-Yan Jiang , Zheng Cai

We utilize deep near-infrared survey data from the UltraVISTA fourth data release (DR4) and the VIDEO survey, in combination with overlapping optical and Spitzer data, to search for bright star-forming galaxies at $z \gtrsim 7.5$. Using a…

We report results of a deep wide-field narrowband survey for redshift z~5.7 Ly alpha emitters carried out with SuprimeCam on Subaru 8.3-m telescope. Deep narrowband imaging of the SSA22 field through a 120 A bandpass filter centered at 8150…

The remarkable HST datasets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map out the evolution of the UV LF from z~10 to z~4. We have identified 5859, 3001, 857, 481, 217, and 6 galaxy candidates at…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 R. J. Bouwens , G. D. Illingworth , P. A. Oesch , M. Trenti , I. Labbe' , L. Bradley , M. Carollo , P. G. van Dokkum , V. Gonzalez , B. Holwerda , M. Franx , L. Spitler , R. Smit , D. Magee

Cosmological hydrodynamic simulations have significantly improved over the past several years, and we have already shown that the observed properties of Lyman-break galaxies (LBGs) at z=3 can be explained well by the massive galaxies in the…

We present UV luminosity functions (LFs) at 1500 Angstrom derived from the HST Early Release Science WFC3/UVIS data acquired over ~50 arcmin^2 of the GOODS-South field. The LFs are determined over the entire redshift range z=0.75-2.5 using…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-01 P. A. Oesch , R. J. Bouwens , C. M. Carollo , G. D. Illingworth , D. Magee , M. Trenti , M. Stiavelli , M. Franx , I. Labbe , P. G. van Dokkum

We searched for z=7.3 Lya emitters (LAEs) behind two lensing clusters, Abell 2390 and CL 0024, with the Subaru Telescope Suprime-Cam and a narrowband NB1006 (FWHM ~ 21 nm centered at 1005 nm). We investigated if there exist objects…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Kazuaki Ota , Johan Richard , Masanori Iye , Takatoshi Shibuya , Eiichi Egami , Nobunari Kashikawa

The study of the Luminosity Function (LF) of Lyman Break Galaxies (LBGs) at z=7 is important for ascertaining their role in the reionization of the Universe. We perform a detailed and critical analysis of the statistical and systematic…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 A. Grazian , M. Castellano , A. M. Koekemoer , A. Fontana , L. Pentericci , V. Testa , K. Boutsia , E. Giallongo , M. Giavalisco , P. Santini

We present the results of a search for the most luminous star-forming galaxies at redshifts z~6 based on CFHT Legacy Survey data. We identify a sample of 40 Lyman break galaxies brighter than magnitude z'=25.3 across an area of almost 4…

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