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

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). Extend...

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Bibliographic Details
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., Sharpe, 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.
Format: Article in Journal/Newspaper
Language:English
Published: Royal Astronomical Society 2017
Subjects:
sami
Online Access:https://authors.library.caltech.edu/81686/
https://authors.library.caltech.edu/81686/1/Leslie_2017p2438.pdf
https://authors.library.caltech.edu/81686/2/1707.03879.pdf
https://resolver.caltech.edu/CaltechAUTHORS:20170921-113010614
Description
Summary: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.

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