The SAMI Galaxy Survey: disc–halo interactions in radio-selected star-forming galaxies
/ Authors
S. Leslie, S. Leslie, J. Bryant, J. Bryant, I. Ho, I. Ho, I. Ho, E. Sadler, A. Medling, A. Medling
and 21 more authors
B. Groves, L. Kewley, J. Bland-Hawthorn, S. Croom, O. I. Wong, S. Brough, E. Tescari, S. Sweet, R. Sharp, A. Green, Á. López-Sánchez, Á. López-Sánchez, J. Allen, L. Fogarty, M. Goodwin, J. Lawrence, I. Konstantopoulos, M. Owers, M. Owers, S. Richards, S. Richards
/ 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.
Journal: Monthly Notices of the Royal Astronomical Society