The cosmic infrared background (CIB) reflects the sum total of galactic luminosities
integrated over the entire age of the universe. From its measurement the red-shifted starlight …

We use all available deep optical ACS and near-IR data over both the HUDF and the two
GOODS fields to search for star-forming galaxies at z\gtrsim 7 and constrain the UV LF within …

We discuss new observational constraints on the abundance of faint high-redshift Lyα
emitters secured from a deep Keck near-infrared spectroscopic survey that utilizes the strong …

We compute the expected value of the cosmological constant in our universe from the
causal entropic principle. Since observers must obey the laws of thermodynamics and …

We report the detection of az~ 7 galaxy strongly lensed by the massive galaxy cluster A2218
(z= 0.175) at 3.6 and 4.5 μm using the Spitzer Space Telescope and at 1.1 μm using the …

We now see many galaxies as they were only 800 million years after the Big Bang, and that
limit may soon be exceeded when wide-field infrared detectors are widely available. Multi …

The next generation of telescopes aim to directly observe the first generation of galaxies that
initiated the reionization process in our Universe. The Lyα emission line is robustly predicted …

We present the first results of our deep survey of lensing clusters aimed at constraining the
abundance of star-forming galaxies at, using lensing magnification to improve the search …

We report the discovery of a Lyα-emitting galaxy at redshift z= 6.545 serendipitously
identified in the course of spectroscopic follow-up of hard X-ray sources on behalf of the …

We present a detailed analysis of the spatially resolved properties of the lensed
submillimeter galaxy (SMG) SMM J14011+ 0252 at z= 2.56, combining deep near-infrared …