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The 6dF Galaxy Survey: Bulk Flows on Mpc scales
Morag I. Scrimgeour, Tamara M. Davis, Chris Blake +12
We measure the bulk flow of the local Universe using the 6dF Galaxy Survey peculiar velocity sample (6dFGSv), the largest and most homogeneous peculiar velocity sample to date. 6dF…
2MTF V. Cosmography, Beta, and the residual bulk flow
Christopher M. Springob, Tao Hong, Lister Staveley-Smith +7
Using the Tully-Fisher relation, we derive peculiar velocities for the 2MASS Tully-Fisher Survey and describe the velocity field of the nearby Universe. We use adaptive kernel smoo…
Extended Tully-Fisher Relations using HI Stacking
Scott A. Meyer, Martin Meyer, Danail Obreschkow +1
We present a new technique for the statistical evaluation of the Tully-Fisher relation (TFR) using spectral line stacking. This technique has the potential to extend TFR observatio…
On the neutral gas content of nine new Milky Way satellite galaxy candidates
T. Westmeier, L. Staveley-Smith, M. Calabretta +5
We use a new, improved version of the HI Parkes All-Sky Survey to search for HI emission from nine new, ultra-faint Milky Way satellite galaxy candidates recently discovered in dat…
Ionospheric modelling using GPS to calibrate the MWA. 1: Comparison of first order ionospheric effects between GPS models and MWA observations
B. S. Arora, J. Morgan, S. M. Ord +56
We compare first order (refractive) ionospheric effects seen by the Murchison Widefield Array (MWA) with the ionosphere as inferred from Global Positioning System (GPS) data. The f…
HI Science with the Square Kilometre Array
Lister Staveley-Smith, Tom Oosterloo
The Square Kilometre Array (SKA) will be a formidable instrument for the detailed study of neutral hydrogen (HI) in external galaxies and in our own Galaxy and Local Group. The sen…
ASKAP HI imaging of the galaxy group IC 1459
P. Serra, B. Koribalski, V. Kilborn +76
We present HI imaging of the galaxy group IC 1459 carried out with six antennas of the Australian SKA Pathfinder equipped with phased-array feeds. We detect and resolve HI in eleve…
A blind HI Mass Function from the Arecibo Ultra-Deep Survey (AUDS)
L. Hoppmann, L. Staveley-Smith, W. Freudling +3
The Arecibo Ultra Deep Survey (AUDS) combines the unique sensitivity of the telescope with the wide field of the Arecibo L-band Feed Array (ALFA) to directly detect 21cm HI emissio…
An analysis of the halo and relic radio emission from Abell 3376 from Murchison Widefield Array observations
Lijo T. George, K. S. Dwarakanath, M. Johnston-Hollitt +48
We have carried out multiwavelength observations of the near-by () rich, merging galaxy cluster Abell 3376 with the Murchison Widefield Array (MWA). As a part of the GaLac…
GLEAM: The GaLactic and Extragalactic All-sky MWA survey
R. B. Wayth, E. Lenc, M. E. Bell +52
GLEAM, the GaLactic and Extragalactic All-sky MWA survey, is a survey of the entire radio sky south of declination +25 deg at frequencies between 72 and 231 MHz, made with the Murc…
From star-forming galaxies to AGN: the global HI content from a stacking experiment
K. Gereb, R. Morganti, T. Oosterloo +2
We study the atomic neutral hydrogen (HI) content of 1600 galaxies up to using stacking techniques. The observations were carried out with the Westerbork Synthes…
A radio-polarisation and rotation measure study of the Gum Nebula and its environment
C. R. Purcell, B. M. Gaensler, X. H. Sun +7
The Gum Nebula is 36 degree wide shell-like emission nebula at a distance of only 450 pc. It has been hypothesised to be an old supernova remnant, fossil HII region, wind-blown bub…
Giant radio galaxies - II. Tracers of large-scale structure
J. M. Malarecki, D. H. Jones, L. Saripalli +2
We have carried out optical spectroscopy with the Anglo-Australian Telescope for 24,726 objects surrounding a sample of 19 Giant Radio Galaxies (GRGs) selected to have redshifts in…
The low-frequency environment of the Murchison Widefield Array: radio-frequency interference analysis and mitigation
A. R. Offringa, R. B. Wayth, N. Hurley-Walker +62
The Murchison Widefield Array (MWA) is a new low-frequency interferometric radio telescope built in Western Australia at one of the locations of the future Square Kilometre Array (…
SoFiA: a flexible source finder for 3D spectral line data
Paolo Serra, Tobias Westmeier, Nadine Giese +9
We introduce SoFiA, a flexible software application for the detection and parameterization of sources in 3D spectral-line datasets. SoFiA combines for the first time in a single pi…
Galactic and Magellanic Evolution with the SKA
Naomi M. McClure-Griffiths, Snezana Stanimirovic, Claire E. Murray +9
As we strive to understand how galaxies evolve it is crucial that we resolve physical processes and test emerging theories in nearby systems that we can observe in great detail. Ou…
Connecting the Baryons: Multiwavelength Data for SKA HI Surveys
Martin Meyer, Aaron Robotham, Danail Obreschkow +3
The science achievable with SKA HI surveys will be greatly increased through the combination of HI data with that at other wavelengths. These multiwavelength datasets will enable s…
Observations of the Intergalactic Medium and the Cosmic Web in the SKA era
A. Popping, M. Meyer, L. Staveley-Smith +3
The interaction of galaxies with their environment, the Intergalactic Medium (IGM), is an important aspect of galaxy formation. One of the most fundamental, but unanswered question…
The SKA as a Doorway to Angular Momentum
D. Obreschkow, M. Meyer, A. Popping +3
Angular momentum is one of the most fundamental physical quantities governing galactic evolution. Differences in the colours, morphologies, star formation rates and gas fractions a…