@article{d57f81baa422483dae4c9dd9f7205fd4,
title = "WALLABY pilot survey: Public release of H i data for almost 600 galaxies from phase 1 of ASKAP pilot observations",
abstract = "We present WALLABY pilot data release 1, the first public release of H i pilot survey data from the Wide-field ASKAP L-band Legacy All-sky Blind Survey (WALLABY) on the Australian Square Kilometre Array Pathfinder. Phase 1 of the WALLABY pilot survey targeted three regions on the sky in the direction of the Hydra and Norma galaxy clusters and the NGC 4636 galaxy group, covering the redshift range of. The source catalogue, images and spectra of nearly 600 extragalactic H i detections and kinematic models for 109 spatially resolved galaxies are available. As the pilot survey targeted regions containing nearby group and cluster environments, the median redshift of the sample of is relatively low compared to the full WALLABY survey. The median galaxy H i mass is. The target noise level of per 30′′ beam and channel translates into a H i mass sensitivity for point sources of about across 50 spectral channels and a H i column density sensitivity of about across 5 channels for emission filling the 30′′ beam. As expected for a pilot survey, several technical issues and artefacts are still affecting the data quality. Most notably, there are systematic flux errors of up to several 10% caused by uncertainties about the exact size and shape of each of the primary beams as well as the presence of sidelobes due to the finite deconvolution threshold. In addition, artefacts such as residual continuum emission and bandpass ripples have affected some of the data. The pilot survey has been highly successful in uncovering such technical problems, most of which are expected to be addressed and rectified before the start of the full WALLABY survey.",
keywords = "catalogues, Radio lines: galaxies, surveys",
author = "T. Westmeier and N. Deg and K. Spekkens and Reynolds, {T. N.} and Shen, {A. X.} and S. Gaudet and S. Goliath and Huynh, {M. T.} and P. Venkataraman and X. Lin and T. O'Beirne and B. Catinella and L. Cortese and H. Denes and A. Elagali and For, {B. Q.} and Jozsa, {G. I.G.} and C. Howlett and {Van Der Hulst}, {J. M.} and Jurek, {R. J.} and P. Kamphuis and Kilborn, {V. A.} and D. Kleiner and Koribalski, {B. S.} and K. Lee-Waddell and C. Murugeshan and J. Rhee and P. Serra and L. Shao and L. Staveley-Smith and J. Wang and Wong, {O. I.} and Zwaan, {M. A.} and Allison, {J. R.} and Anderson, {C. S.} and Lewis Ball and Bock, {D. C.J.} and D. Brodrick and Bunton, {J. D.} and Cooray, {F. R.} and N. Gupta and Hayman, {D. B.} and Mahony, {E. K.} and Moss, {V. A.} and A. Ng and Pearce, {S. E.} and W. Raja and Roxby, {D. N.} and Voronkov, {M. A.} and Warhurst, {K. A.} and Courtois, {H. M.} and K. Said",
note = "Funding Information: PK acknowledges financial support by the German Federal Ministry of Education and Research (BMBF) under grant 05A17PC2 (Verbundprojekt D-MeerKAT-II). Funding Information: This research used the facilities of the Canadian Astronomy Data Centre operated by the National Research Council of Canada with the support of the Canadian Space Agency. Funding Information: This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology. a Funding Information: LC acknowledges support from the Australian Research Council Discovery Project and Future Fellowship funding schemes (DP210100337, FT180100066). Funding Information: The Canadian Initiative for Radio Astronomy Data Analysis (CIRADA) is funded by a grant from the Canada Foundation for Innovation 2017 Innovation Fund (Project 35999) and by the Provinces of Ontario, British Columbia, Alberta, Manitoba and Quebec, in collaboration with the National Research Council of Canada, the US National Radio Astronomy Observatory and Australia{\textquoteright}s Commonwealth Scientific and Industrial Research Organisation. Funding Information: JMvdH acknowledges support from the European Research Council under the European Union{\textquoteright}s Seventh Framework Programme (FP/2007–2013) ERC Grant Agreement nr. 291531 (HIStoryNU). Funding Information: Parts of this research were supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. Funding Information: The Australian SKA Pathfinder is part of the Australia Telescope National Facility ( https://ror.org/05qajvd42 ) which is managed by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. ASKAP uses the resources of the Pawsey Supercomputing Centre. Establishment of ASKAP, the Murchison Radio-astronomy Observatory and the Pawsey Supercomputing Centre are initiatives of the Australian Government, with support from the Government of Western Australia and the Science and Industry Endowment Fund. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. Publisher Copyright: {\textcopyright} ",
year = "2022",
month = nov,
day = "15",
doi = "10.1017/pasa.2022.50",
language = "English",
volume = "39",
journal = "Publications of the Astronomical Society of Australia",
issn = "1323-3580",
publisher = "Cambridge University Press",
}