The KMOS Redshift One Spectroscopic Survey (KROSS):the origin of disc turbulence in z≈1 star-forming galaxies

• Published in: Monthly Notices of the Royal Astronomical Society
• Main Authors: Johnson, H. L., Harrison, C. M., Swinbank, A. M., Tiley, A. L., Stott, J. P., Bower, R. G., Smail, Ian, Bunker, A. J., Sobral, D., Turner, O. J., Best, P., Bureau, M., Cirasuolo, M., Jarvis, M. J., Magdis, G., Sharples, R. M., Bland-Hawthorn, J., Catinella, B., Cortese, L., Croom, S. M., Federrath, C., Glazebrook, K., Sweet, S. M., Bryant, J. J., Goodwin, M., Konstantopoulos, I. S., Lawrence, J. S., Medling, A. M., Owers, M. S., Richards, S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: Galaxies: evolution; Galaxies: high-redshift; Galaxies: kinematics and dynamics; Infrared: galaxies; Kross; sami
• Online Access: https://researchers.mq.edu.au/en/publications/a4107efe-5c1a-4cfc-b114-cf35a09d9452; https://doi.org/10.1093/MNRAS/STX3016; http://www.scopus.com/inward/record.url?scp=85045555575&partnerID=8YFLogxK; http://purl.org/au-research/grants/arc/FT140100255

We analyse the velocity dispersion properties of 472 z~0.9 star-forming galaxies observed as part of the KMOS Redshift One Spectroscopic Survey (KROSS). The majority of this sample is rotationally dominated (83 ± 5 per cent with v C /σ 0 > 1) but also dynamically hot and highly turbulent. After c...