90 citations · 255 across the 15 of their papers we have counts for
14 papers · 1 filter
The H IX galaxy survey IV: What does the molecular gas reveal in HI eXtreme galaxies
V. A. Capa, H. Dénes, K. A. Lutz +1
Galaxies with extreme amounts of neutral atomic hydrogen (HI), known as HI-eXtreme (HIX) galaxies, paradoxically exhibit normal or low star formation rates. To investigate the bott…
WALLABY Pilot Survey: kNN identification of perturbed galaxies through HI morphometrics
B. W. Holwerda, Helga Dénes, J. Rhee +11
Galaxy morphology in stellar light can be described by a series of "non-parametric" or "morphometric" parameters, such as concentration-asymmetry-smoothness, Gini, , and Se…
WALLABY Pilot Survey & ASymba: Comparing HI Detection Asymmetries to the SIMBA Simulation
Mathieu Perron-Cormier, Nathan Deg, Kristine Spekkens +15
An avenue for understanding cosmological galaxy formation is to compare morphometric parameters in observations and simulations of galaxy assembly. In this second paper of the ASym…
WALLABY Pilot Survey: Star Formation Enhancement and Suppression in Gas-rich Galaxy Pairs
Qifeng Huang, Jing Wang, Xuchen Lin +16
Galaxy interactions can significantly affect the star formation in galaxies, but it remains a challenge to achieve a consensus on the star formation rate (SFR) enhancement in galax…
WALLABY Pilot Survey: the Tully-Fisher relation in the NGC 4808, Vela and NGC 5044 fields
Jeremy Mould, T. H. Jarrett, Hélène Courtois +18
The Tully-Fisher Relation (TFR) is a well-known empirical relationship between the luminosity of a spiral galaxy and its circular velocity, allowing us to estimate redshift indepen…
WALLABY Pilot Survey: An 'Almost' Dark Cloud near the Hydra Cluster
T. O'Beirne, L. Staveley-Smith, O. I. Wong +20
We explore the properties of an 'almost' dark cloud of neutral hydrogen (HI) using data from the Widefield ASKAP L-band Legacy All-sky Survey (WALLABY). Until recently, WALLABY J10…
WALLABY Pilot Survey: the Potential Polar Ring Galaxies NGC~4632 and NGC~6156
N. Deg, R. Palleske, K. Spekkens +24
We report on the discovery of two potential polar ring galaxies (PRGs) in the WALLABY Pilot Data Release 1 (PDR1). These untargetted detections, cross-matched to NGC 4632 and NGC 6…
WALLABY Pilot Survey: Public release of HI kinematic models for more than 100 galaxies from phase 1 of ASKAP pilot observations
N. Deg, K. Spekkens, T. Westmeier +29
We present the Widefield ASKAP L-band Legacy All-sky Blind surveY (WALLABY) Pilot Phase I HI kinematic models. This first data release consists of HI observations of three fields i…
WALLABY pre-pilot survey: Two dark clouds in the vicinity of NGC 1395
O. Ivy Wong, A. R. H. Stevens, B. -Q. For +34
We present the Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pre-pilot observations of two `dark' HI sources (with HI masses of a few times 10^8 Msol and no known st…
The ASKAP-EMU Early Science Project:Radio Continuum Survey of the Small Magellanic Cloud
T. D. Joseph, M. D. Filipović, E. J. Crawford +53
We present two new radio continuum images from the Australian Square Kilometre Array Pathfinder (ASKAP) survey in the direction of the Small Magellanic Cloud (SMC). These images ar…
The HIX galaxy survey I: Study of the most gas rich galaxies from HIPASS
K. A. Lutz, V. A. Kilborn, B. Catinella +6
We present the HI eXtreme (HIX) galaxy survey targeting some of the most HI rich galaxies in the southern hemisphere. The 13 HIX galaxies have been selected to host the most massiv…
HI-deficient galaxies in intermediate density environments
Helga Denes, Virginia A. Kilborn, Baerbel S. Koribalski +1
Observations show that spiral galaxies in galaxy clusters tend to have on average less neutral hydrogen (HI) than galaxies of the same type and size in the field. There is accumula…
New HI scaling relations to probe the HI content of galaxies via global HI-deficiency maps
Helga Dénes, Virginia A. Kilborn, Bärbel S. Koribalski
We present new multi-wavelength scaling relations between the neutral hydrogen content (HI) and the stellar properties of nearby galaxies selected from the HI Parkes All-Sky Survey…
Finding galaxies with unusual HI content
Helga Dénes, Virginia A. Kilborn, Bärbel S. Koribalski
Observations show that galaxies in galaxy clusters are strongly influenced by their environment. There is growing evidence that some galaxies in groups show similar properties to g…