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 1021 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.
Original language | English |
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Pages (from-to) | 2438-2452 |
Number of pages | 15 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 471 |
Issue number | 2 |
DOIs | |
Publication status | Published - Oct 2017 |
Keywords
- cosmic rays
- galaxies: evolution
- galaxies: haloes
- galaxies: ISM
- galaxies: jets
- galaxies: kinematics and dynamics