2021
DOI: 10.48550/arxiv.2112.00231
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WALLABY Pilot Survey: HI gas disc truncation and star formation of galaxies falling into the Hydra I cluster

T. N. Reynolds,
B. Catinella,
L. Cortese
et al.

Abstract: We present results from our analysis of the Hydra I cluster observed in neutral atomic hydrogen (H ) as part of the Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY). These WALLABY observations cover a 60-square-degree field of view with uniform sensitivity and a spatial resolution of 30 arcsec. We use these wide-field observations to investigate the effect of galaxy environment on H gas removal and star formation quenching by comparing the properties of cluster, infall and field galaxies extending … Show more

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“…The Hydra Cluster has been studied before in H i with the Very Large Array McMahon et al (1992), and most recently with ASKAP as part of WALLABY Early Science (Wang et al 2021;Reynolds et al 2021a). The results presented here show the game-changing capability of the MeerKAT telescope to H i studies in the nearby Universe, even at relatively low spectral resolution.…”
Section: Discussionmentioning
confidence: 99%
“…The Hydra Cluster has been studied before in H i with the Very Large Array McMahon et al (1992), and most recently with ASKAP as part of WALLABY Early Science (Wang et al 2021;Reynolds et al 2021a). The results presented here show the game-changing capability of the MeerKAT telescope to H i studies in the nearby Universe, even at relatively low spectral resolution.…”
Section: Discussionmentioning
confidence: 99%