J. Wall

Publications205
h-index37
Citations4,452
Highly Influential Citations480
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Bright extragalactic radio sources at 2.7 GHz – III. The all-sky catalogue
L'echantillon complet contient 233 sources. Il couvre 9,81 sr et ses limites sont S 2,7 =2,0 Jy et |b|>10°. L'analyse montre que 227 sources (97%) ont des identifications optiques et 171 (73%) des…
Practical Statistics for Astronomers
TLDR
This paper presents a meta-modelling and parameter-estimation framework for estimating the modeled values of parameters in the discrete-time model, which is applicable to modelers of large-scale structures.
Radio and millimeter continuum surveys and their astrophysical implications
We review the statistical properties of the main populations of radio sources, as emerging from radio and millimeter sky surveys. Recent determinations of local luminosity functions are presented and…
RESOLVING THE RADIO SOURCE BACKGROUND: DEEPER UNDERSTANDING THROUGH CONFUSION
We used the Karl G. Jansky Very Large Array to image one primary beam area at 3 GHz with 8'' FWHM resolution and 1.0 {mu}Jy beam{sup -1} rms noise near the pointing center. The P(D) distribution from…
Decrease in the space density of quasars at high redshift
QUASARS have been found up to redshifts of almost five, corresponding to an epoch when the Universe was less than ten per cent of its present age. This leaves a rather short time for the formation of…
The Evolution of Swift/BAT Blazars and the Origin of the MeV Background
We use three years of data from the Swift/Burst Alert Telescope (BAT) survey to select a complete sample of X-ray blazars above 15 keV. This sample comprises 26 flat-spectrum radio quasars (FSRQs)…
The corals survey I: new estimates of the number density and gas content of damped lyman alpha systems free from dust bias
We present the first results from the Complete Optical and Radio Absorption Line System (CORALS) survey. We have compiled a homogeneous sample of radio-selected QSOs from the Parkes Catalogue and…
EMU: Evolutionary Map of the Universe
Abstract EMU is a wide-field radio continuum survey planned for the new Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The primary goal of EMU is to make a deep (rms ∼ 10 μJy/beam)…
The Parkes quarter-Jansky flat-spectrum sample. I. Sample selection and source identifications
We present a new sample of quarter-Jansky flat-spectrum radio sources selected to search for high-redshift quasars and to study the evolution of the flat-spectrum quasar population. The sample…
Science with ASKAP
AbstractThe future of cm and m-wave astronomy lies with the Square Kilometre Array (SKA), a telescope under development by a consortium of 17 countries. The SKA will be 50 times more sensitive than…
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