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15 papers · 1 filter
Are peculiar velocity surveys competitive as a cosmological probe?
Jun Koda, Chris Blake, Tamara Davis +6
Peculiar velocity surveys, which measure galaxy peculiar velocities directly from standard candles in addition to redshifts, can provide strong constraints on the linear growth rat…
The busy function: a new analytic function for describing the integrated 21-cm spectral profile of galaxies
Tobias Westmeier, Russell Jurek, Danail Obreschkow +2
Accurate parametrization of galaxies detected in the 21-cm HI emission is of fundamental importance to the measurement of commonly used indicators of galaxy evolution, including th…
Absolutely calibrated radio polarimetry of the inner Galaxy at 2.3 GHz and 4.8 GHz
X. H. Sun, B. M. Gaensler, E. Carretti +4
We present high sensitivity and absolutely calibrated images of diffuse radio polarisation at a resolution of about 10 arcmin covering the range 10 degr <l<34 degr and |b|<5 degr a…
The radio remnant of Supernova 1987A at high frequencies and high resolution
G. Zanardo, L. Staveley-Smith, C. -Y. Ng +4
As the remnant of Supernova (SN) 1987A has been getting brighter over time, new observations at high frequencies have allowed imaging of the radio emission at unprecedented detail.…
A New 1.4GHz Radio Continuum Map of the Sky South of Declination +25 deg
Mark R. Calabretta, Lister Staveley-Smith, David G. Barnes
Archival data from the HI Parkes All-Sky Survey (HIPASS) and the HI Zone of Avoidance (HIZOA) survey have been carefully reprocessed into a new 1.4GHz continuum map of the sky sout…
B0707-359: a case study of change in AGN-black hole spin axis
L. Saripalli, J. M. Malarecki, R. Subrahmanyan +2
Structures of radio galaxies have the potential to reveal inconstancy in the axis of the beams, which reflect the stability in the spin axis of the supermassive black hole at the c…
WISE TF: A Mid-infrared, 3.4-micron Extension of the Tully-Fisher Relation Using WISE Photometry
David J. Lagattuta, Jeremy R. Mould, Lister Staveley-Smith +5
We present a mid-infrared Tully-Fisher (TF) relation using photometry from the 3.4-micron W1 band of the Wide-field Infrared Survey Explorer (WISE) satellite. The WISE TF relation…
Detection of HI in distant galaxies using spectral stacking
Jacinta Delhaize, Martin Meyer, Lister Staveley-Smith +1
Using the Parkes radio telescope, we study the 21cm neutral hydrogen (HI) properties of a sample of galaxies with redshifts z<0.13 extracted from the optical 2dF Galaxy Redshift Su…
Choirs, HI Galaxy Groups: Catalogue and Detection of Star-forming Dwarf Group Members
Sarah M. Sweet, Gerhardt Meurer, Michael J. Drinkwater +24
Hα observations centred on galaxies selected from the HI Parkes All Sky Survey (HIPASS, Barnes et al. 2001) typically show one and sometimes two star-forming galaxies within the ap…
2MTF II. New Parkes 21-cm observations of 303 southern galaxies
Tao Hong, Lister Staveley-Smith, Karen L. Masters +6
We present new 21-cm neutral hydrogen (HI) observations of spiral galaxies for the 2MASS Tully Fisher (2MTF) survey. Using the 64-m Parkes radio telescope multibeam system we obtai…
Giant Radio Galaxies: I. Intergalactic Barometers
J. M. Malarecki, L. Staveley-Smith, L. Saripalli +4
We present new wideband radio observations with the Australia Telescope Compact Array of a sample of 12 giant radio galaxies. The radio observations are part of a larger radio-opti…
Confronting Cold Dark Matter Predictions with Observed Galaxy Rotations
Danail Obreschkow, Xiangcheng Ma, Martin Meyer +4
The rich statistics of galaxy rotations as captured by the velocity function (VF) provides invaluable constraints on galactic baryon physics and the nature of dark matter (DM). How…
Galaxy And Mass Assembly (GAMA): Spectroscopic analysis
A. M. Hopkins, S. P. Driver, S. Brough +79
The Galaxy And Mass Assembly (GAMA) survey is a multiwavelength photometric and spectroscopic survey, using the AAOmega spectrograph on the Anglo-Australian Telescope to obtain spe…
Giant Magnetized Outflows from the Centre of the Milky Way
E. Carretti, R. M. Crocker, L. Staveley-Smith +6
The nucleus of the Milky Way is known to harbour regions of intense star formation activity as well as a super-massive black hole. Recent Fermi space telescope observations have re…
High-resolution radio observations of SNR 1987A at high frequencies
Giovanna Zanardo, L. Staveley-Smith, C. -Y. Ng +4
We present new imaging observations of the remnant of Supernova (SN) 1987A at 44 GHz, performed in 2011 with the Australia Telescope Compact Array (ATCA). The $0\farcs35\times0\far…