The WALLABY team is pleased to release the next batch of value-added data products from the WALLABY pilot survey to the general public. This second public data release (PDR2) includes source catalogues, images and spectra of about 1800 galaxie detected in HI emission during phase 2 of the WALLABY pilot surveys at the standard 30″ resolution in addition to kinematic models for more than 120 spatially resolved galaxies. For the first time, additional cutouts at 12″ resolution of 80 galaxies detected in the direction of HIPASS sources located in the phase 2 pilot fields have been released as well. The galaxies were detected with the Australian SKA Pathfinder (ASKAP) in three separate regions on the sky in the direction of the NGC 4808 and NGC 5044 galaxy groups and the Vela supercluster.

HI emission from galaxies in a small region of the NGC 5044 field.

The data can be obtained from the Canadian Astronomy Data Centre (CADC) and the CSIRO ASKAP Science Data Archive (CASDA), either through a web browser or via TAP/ASQL. Detailed instructions on how to access the data have been made available on the WALLABY website at

The data release is accompanied by a paper describing the source finding and resulting HI source catalogue as well as the kinematic modelling of galaxies:

  • WALLABY Pilot Survey: Public data release of ~1800 HI sources and high-resolution cut-outs from Pilot Survey Phase 2
    C. Murugeshan, N. Deg, T. Westmeier et al., 2024, PASA, in press
    arXiv:2409.13130

The paper will be published in Publications of the Astronomical Society of Australia (PASA) and provides a detailed description of the available data products and their limitations. With full WALLABY survey observations now officially under way, regular releases of full survey data to the public are expected to occur over the coming years as the survey progresses.