WALLABY Pilot Survey: Gas-rich Galaxy Scaling Relations from Marginally Resolved Kinematic Models

N. Deg; N. Arora; K. Spekkens; R. Halloran; B. Catinella; M. G. Jones; H. Courtois; K. Glazebrook; A. Bosma; L. Cortese; H. Dénes; A. Elagali; B.-Q. For; P. Kamphuis; B. S. Koribalski; K. Lee-Waddell; P. E. Mancera Piña; J. Mould; J. Rhee; L. Shao; L. Staveley-Smith; J. Wang; T. Westmeier; O. I. Wong

doi:10.3847/1538-4357/ad84ba

The Astrophysical Journal (Jan 2024)

WALLABY Pilot Survey: Gas-rich Galaxy Scaling Relations from Marginally Resolved Kinematic Models

N. Deg,
N. Arora,
K. Spekkens,
R. Halloran,
B. Catinella,
M. G. Jones,
H. Courtois,
K. Glazebrook,
A. Bosma,
L. Cortese,
H. Dénes,
A. Elagali,
B.-Q. For,
P. Kamphuis,
B. S. Koribalski,
K. Lee-Waddell,
P. E. Mancera Piña,
J. Mould,
J. Rhee,
L. Shao,
L. Staveley-Smith,
J. Wang,
T. Westmeier,
O. I. Wong

Affiliations

N. Deg: ORCiD; Department of Physics, Engineering Physics, and Astronomy, Queen’s University , Kingston, ON K7L 3N6, Canada ; [email protected]
N. Arora: ORCiD; Department of Physics, Engineering Physics, and Astronomy, Queen’s University , Kingston, ON K7L 3N6, Canada ; [email protected]
K. Spekkens: Department of Physics, Engineering Physics, and Astronomy, Queen’s University , Kingston, ON K7L 3N6, Canada ; [email protected]; Department of Physics and Space Science, Royal Military College of Canada , P.O. Box 17000, Station Forces, Kingston, ON K7K 7B4, Canada
R. Halloran: Department of Physics, Engineering Physics, and Astronomy, Queen’s University , Kingston, ON K7L 3N6, Canada ; [email protected]
B. Catinella: ORCiD; International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
M. G. Jones: ORCiD; Steward Observatory, University of Arizona , 933 North Cherry Avenue, Rm. N204, Tucson, AZ 85721-0065, USA
H. Courtois: ORCiD; University Claude Bernard Lyon 1 , IUF, IP2I Lyon, 69622 Villeurbanne, France
K. Glazebrook: ORCiD; Centre for Astrophysics & Supercomputing, Swinburne University , Hawthorn, VIC 3122, Australia
A. Bosma: ORCiD; Aix Marseille University , CNRS, CNES, LAM, Marseille, France
L. Cortese: ORCiD; International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
H. Dénes: School of Physical Sciences and Nanotechnology, Yachay Tech University , Hacienda San José S/N, 100119 Urcuquí, Ecuador
A. Elagali: Department of Biological Sciences, University of Western Australia , Australia
B.-Q. For: International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
P. Kamphuis: Ruhr University Bochum , Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), 44780 Bochum, Germany
B. S. Koribalski: ORCiD; Australia Telescope National Facility , CSIRO, Space and Astronomy, P.O. Box 76, Epping, NSW 1710, Australia; School of Science, Western Sydney University , Locked Bag 1797, Penrith, NSW 2751, Australia
K. Lee-Waddell: ORCiD; International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; CSIRO Space and Astronomy , PO Box 1130, Bentley, WA 6102, Australia; International Centre for Radio Astronomy Research (ICRAR), Curtin University , Bentley, WA 6102, Australia
P. E. Mancera Piña: ORCiD; Leiden Observatory, Leiden University , P.O. Box 9513, 2300 RA, Leiden, The Netherlands
J. Mould: Centre for Astrophysics & Supercomputing, Swinburne University , Hawthorn, VIC 3122, Australia; ARC Centre of Excellence for Dark Matter Particle Physics , Australia
J. Rhee: ORCiD; International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia
L. Shao: National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
L. Staveley-Smith: International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
J. Wang: Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People's Republic of China
T. Westmeier: International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
O. I. Wong: ORCiD; International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia; CSIRO Space and Astronomy , PO Box 1130, Bentley, WA 6102, Australia

DOI: https://doi.org/10.3847/1538-4357/ad84ba
Journal volume & issue: Vol. 976, no. 2
p. 159

Abstract

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We present the first set of galaxy scaling relations derived from kinematic models of the Widefield Australian Square Kilometer Array Pathfinder (ASKAP) L -band Legacy All-sky Blind surveY (WALLABY) pilot phase observations. Combining the results of the first and second pilot data releases, there are 236 available kinematic models. We develop a framework for robustly measuring H i disk structural properties from these kinematic models, applicable to the full WALLABY survey. Utilizing this framework, we obtained the H i size, a measure of the rotational velocity, and angular momentum for 148 galaxies. These comprise the largest sample of galaxy properties from an untargeted, uniformly observed, and modeled H i survey to date. We study the neutral atomic hydrogen (H i ) size–mass, size–velocity, mass–velocity, and angular momentum–mass scaling relations. We calculate the slope, intercept, and scatter for these scaling relations and find that they are similar to those obtained from other H i surveys. We also obtain stellar masses for 92 of the 148 robustly measured galaxies using multiband photometry through Dark Energy Sky Instrument Legacy Imaging Survey Data Release 10 images. We use a subset of 61 of these galaxies that have consistent optical and kinematic inclinations to examine the stellar and baryonic Tully–Fisher relations as well as the gas fraction–disk stability and gas fraction–baryonic mass relations. These measurements and relations demonstrate the unprecedented resource that WALLABY will represent for resolved galaxy scaling relations in H i .

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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