The SAMI Galaxy Survey: disc-halo interactions in radio-selected star-forming galaxies

Research output: Research - peer-reviewArticle

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Authors

  • S. K. Leslie
  • J. J. Bryant
  • I. -T. Ho
  • E. M. Sadler
  • A. M. Medling
  • B. Groves
  • And 17 others
  • L. J. Kewley
  • J. Bland-Hawthorn
  • S. M. Croom
  • O. I. Wong
  • S. Brough
  • E. Tescari
  • S. M. Sweet
  • R. Sharp
  • A. W. Green
  • A. R. Lopez-Sanchez
  • J. T. Allen
  • L. M. R. Fogarty
  • M. Goodwin
  • J. S. Lawrence
  • I. S. Konstantopoulos
  • M. S. Owers
  • S. N. Richards

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Abstract

In this paper, we compare the radio emission at 1.4 GHz with optical outflowsignatures of edgeon galaxies. We report observations of six edge-on star-forming galaxies in the Sydney-AAO Multiobject Integral-field spectrograph Galaxy Survey with 1.4 GHz luminosities > 1 x 10(21) WHz(-1). Extended minor axis optical emission is detected with enhanced [N II]/II alpha line ratios and velocity dispersions consistent with galactic winds in three of six galaxies. These galaxies may host outflows driven by a combination of thermal and cosmic ray processes. We find that galaxies with the strongest wind signatures have extended radio morphologies. Our results form a baseline for understanding the driving mechanisms of galactic winds.

Peer-reviewedYes
Original languageEnglish
Pages (from-to)2438-2452
Number of pages15
JournalMonthly Notices of the Royal Astronomical Society
Volume471
Issue number2
DOIs
StatePublished - Oct 2017


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