NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-18 T14:00:01 PDT
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For refcode 2018MNRAS.473.3358S:
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NED Abstract

Copyright by Royal Astronomical Society. 2018MNRAS.473.3358S H I debris in the IC 1459 galaxy group Saponara, Juliana; Koribalski, Barbel S.; Benaglia, Paula; Fernandez Lopez, Manuel Abstract. We present H I synthesis imaging of the giant elliptical galaxy IC 1459 and its surroundings with the Australia Telescope Compact Array. Our search for extended H I emission revealed a large complex of H I clouds near IC 1459, likely to be the debris from tidal interactions with neighbouring galaxies. The total H I mass (~10^9^ M_sun_) in the detected clouds spans 250 kpc from the north-east of the gas-rich spiral NGC 7418A to the south-east of IC 1459. The extent and mass of the H I debris, which shows rather irregular morphology and kinematics, are similar to those in other nearby groups. Together with H I clouds recently detected near two other IC 1459 group members, namely IC 5270 and NGC 7418, using phased-array feeds on the Australian Square Kilometre Array Pathfinder, the detected debris make up a significant fraction of the group's intergalactic medium. Key words: galaxies: groups: individual: IC 1459, galaxies: interactions, radio lines: galaxies
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