The SAMI Galaxy Survey: disc–halo interactions in radio-selected star-forming galaxies. Issue 2 (6th July 2017)

• Record Type: Journal Article
• Authors: Leslie, S. K.; Bryant, J. J.; Ho, I.-T.; Sadler, E. M.; Medling, A. M.; Groves, B.; Kewley, L. J.; Bland-Hawthorn, J.; Croom, S. M.; Wong, O. I.; Brough, S.; Tescari, E.; Sweet, S. M.; Sharp, R.; Green, A. W.; López-Sánchez, Á. R.; Allen, J. T.; Fogarty, L. M. R.; Goodwin, M.; Lawrence, J. S.; Konstantopoulos, I.S.; Owers, M. S.; Richards, S. N.
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 471:Issue 2(2017)
• Page Start: 2438
• Page End: 2452
• Publication Date: 2017-07-06
• Subjects: cosmic rays -- galaxies: evolution -- galaxies: haloes -- galaxies: ISM -- galaxies: jets -- galaxies: kinematics and dynamics; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stx1673
• Languages: English
• ISSNs: 0035-8711

Abstract

Abstract: In this paper, we compare the radio emission at 1.4 GHz with optical outflow signatures of edge-on 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 × 10 21 W Hz −1 . Extended minor axis optical emission is detected with enhanced [N ii ]/H α 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.