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Local Large-Scale Structure and the Assumption of Homogeneity
Ryan C. Keenan, Amy J. Barger, Lennox L. Cowie
Our recent estimates of galaxy counts and the luminosity density in the near-infrared (Keenan et al. 2010, 2012) indicated that the local universe may be under-dense on radial scal…
Constraining the Variation of the Fine Structure Constant with Observations of Narrow Quasar Absorption Lines
A. Songaila, L. L. Cowie
Attempts to measure the variability of the fine structure constant alpha over cosmological time, using spectra of high redshift quasars have produced conflicting results. We use th…
z~1 Lya Emitters I. The Luminosity Function
Isak G. B. Wold, Amy J. Barger, Lennox L. Cowie
We construct a flux-limited sample of 135 candidate z~1 Lya emitters (LAEs) from Galaxy Evolution Explorer (GALEX) grism data using a new data cube search method. These LAEs have l…
SMA observations on faint Submillimeter Galaxies with S < 2 mJy: Ultra Dusty Low-Luminosity Galaxies at High Redshift
Chian-Chou Chen, Lennox L. Cowie, Amy J. Barger +2
We obtained SMA observations of eight faint (intrinsic 850 m fluxes 2 mJy) submillimeter galaxies (SMGs) discovered in SCUBA images of the massive lensing cluster fields A37…
Resolving the Cosmic Far-Infrared Background at 450 and 850 Microns with SCUBA-2
Chian-Chou Chen, Lennox L. Cowie, Amy J. Barger +5
We use the SCUBA-2 submillimeter camera mounted on the JCMT to obtain extremely deep number counts at 450 and 850um. We combine data on two cluster lensing fields, A1689 and A370,…
Characterisation of SCUBA-2 450um and 850um-selected Galaxies in the COSMOS Field
Caitlin M. Casey, Chian-Chou Chen, Lennox Cowie +8
We present deep 450um and 850um observations of a large, uniformly covered 394arcmin^2 area in the COSMOS field obtained with the SCUBA-2 instrument on the James Clerk Maxwell Tele…