WALLABY Pre-Pilot and Pilot Survey: the Tully Fisher Relation in Eridanus, Hydra, Norma and NGC4636 fields

Abstract

The WALLABY pilot survey has been conducted using the Australian SKA Pathfinder (ASKAP). The integrated 21-cm HI line spectra are formed in a very different manner compared to usual single-dish spectra Tully-Fisher measurements. It is thus extremely important to ensure that slight differences (e.g. biases due to missing flux) are quantified and understood in order to maximise the use of the large amount of data becoming available soon. This article is based on four fields for which the data are scientifically interesting by themselves. The pilot data discussed here consist of 614 galaxy spectra at a rest wavelength of 21cm. Of these spectra, 472 are of high enough quality to be used to potentially derive distances using the Tully-Fisher relation. We further restrict the sample to the 251 galaxies whose inclination is sufficiently close to edge-on. For these, we derive Tully-Fisher distances using the deprojected WALLABY velocity widths combined with infrared (WISE W1) magnitudes. The resulting Tully-Fisher distances for the Eridanus, Hydra, Norma and NGC 4636 clusters are 21.5, 53.5, 69.4 and 23.0 Mpc respectively, with uncertainties of 5--10\%, which are better or equivalent to the ones obtained in studies using data obtained with giant single dish telescopes. The pilot survey data show the benefits of WALLABY over previous giant single-dish telescope surveys. WALLABY is expected to detect around half a million galaxies with a mean redshift of $z=0.05(200Mpc)$. This study suggests that about 200,000 Tully-Fisher distances might result from the survey.

21 pages, 12 Figures, 6 Tables, accepted for publication in the MNRAS

References in corpus (28)

• The Laniakea supercluster of galaxies
• Australian Square Kilometre Array Pathfinder: I. System Description
• SoFiA: a flexible source finder for 3D spectral line data
• SoFiA 2 -- An automated, parallel HI source finding pipeline for the WALLABY survey
• Joint analysis of 6dFGS and SDSS peculiar velocities for the growth rate of cosmic structure and tests of gravity
• Action Dynamics of the Local Supercluster
• The WISE Extended Source Catalogue (WXSC) I: The 100 Largest Galaxies
• The Pantheon+ Analysis: Evaluating Peculiar Velocity Corrections in Cosmological Analyses with Nearby Type Ia Supernovae
• Cosmicflows-4: The Catalog of ~10000 Tully-Fisher Distances
• The peculiar velocity field up to $z\sim 0.05$ by forward-modeling Cosmicflows-3 data
• The Dipole Repeller
• Cosmic Bulk Flow and the Local Motion from Cosmicflows-2
• The Norma Cluster (ACO 3627): I. A Dynamical Analysis of the Most Massive Cluster in the Great Attractor
• The Local Galaxy 8 micron Luminosity Function
• WALLABY Pilot Survey: the diversity of ram pressure stripping of the galactic HI gas in the Hydra Cluster
• MIGHTEE-HI: The baryonic Tully-Fisher relation over the last billion years
• WALLABY Pilot Survey: Public release of HI data for almost 600 galaxies from phase 1 of ASKAP pilot observations
• The Calibration of the WISE W1 and W2 Tully-Fisher Relation
• An environmental dependence of the physical and structural properties in the Hydra Cluster galaxies
• Update on HI data collection from GBT, Parkes and Arecibo telescopes for the Cosmic Flows project
• 2MTF - VII. 2MASS Tully-Fisher survey final data release: distances for 2,062 nearby spiral galaxies
• The Cosmic V-Web
• Cosmicflows-3: The South Pole Wall
• Draining the Local Void
• WALLABY Pre-Pilot Survey: HI Content of the Eridanus Supergroup
• WALLABY pre-pilot survey: Two dark clouds in the vicinity of NGC 1395
• Understanding the Fundamental Plane and the Tully Fisher Relation
• The Distance and Peculiar Velocity of the Norma cluster (ACO 3627) using the Near-Infrared $J$ and $K_s$-band Fundamental Plane Relations

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• Large-scale motions and growth rate from forward-modelling Tully-Fisher peculiar velocities
• Testing anisotropic Hubble expansion
• Constraining modified gravity scenarios with the 6dFGS and SDSS galaxy peculiar velocity datasets
• WALLABY Pilot Survey: Gas-Rich Galaxy Scaling Relations from Marginally-Resolved Kinematic Models
• In search for the Local Universe dynamical homogeneity scale with CF4++ peculiar velocities