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

• Published in: Monthly Notices of the Royal Astronomical Society
• Main 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., Lopez-Sanchez, A. R., Allen, J. T., Fogarty, Lisa M. R., Goodwin, M., Lawrence, J. S., Konstantopoulos, Iraklis S., Owers, M. S., Richards, S. N.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2017
• Subjects: cosmic rays; galaxies: evolution; galaxies: haloes; galaxies: ISM; galaxies: jets; galaxies: kinematics and dynamics; sami
• Online Access: https://researchers.mq.edu.au/en/publications/5abda158-b43a-4442-bcb9-4198115cd82b; https://doi.org/10.1093/mnras/stx1673; http://purl.org/au-research/grants/arc/CE110001020; http://purl.org/au-research/grants/arc/FT140100255; http://www.scopus.com/inward/record.url?scp=85052434421&partnerID=8YFLogxK

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]/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.