We construct Tully-Fisher relations (TFRs), from large samples of galaxies with spatially-resolved H alpha emission maps from the K-band Multi-Object Spectrograph (KMOS) Redshift One Spectroscopic Survey (KROSS) at z approximate to 1. We compare these to data from the Sydney-Australian-Astronomical-Observatory Multi-object Integral-Field Spectrograph (SAMI) Galaxy Survey at z approximate to 0. We stringently match the data quality of the latter to the former, and apply identical analysis methods and sub-sample selection criteria to both to conduct a direct comparison of the absolute K-band magnitude and stellar mass TFRs at z approximate to 1 and 0. We find that matching the quality of the SAMI data to that of KROSS results in TFRs that differ significantly in slope, zero-point and (sometimes) scatter in comparison to the corresponding original SAMI relations. These differences are in every case as large or larger than the differences between the KROSS z approximate to 1 and matched SAMI z approximate to 0 relations. Accounting for these differences, we compare the TFRs at z approximate to 1 and 0. For disk-like, star-forming galaxies we find no significant difference in the TFR zero-points between the two epochs. This suggests the growth of stellar mass and dark matter in these types of galaxies is intimately linked over this approximate to 8 Gyr period.
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Tiley, A. (Creator), Bureau, M. (Creator), Cortese, L. (Creator), Harrison, C. M. (Creator), Johnson, H. L. (Creator), Stott, J. P. (Creator), Swinbank, A. M. (Creator), Smail, I. (Creator), Sobral, D. (Creator), Bunker, A. J. (Creator), Glazebrook, K. (Creator), Bower, R. G. (Creator), Obreschkow, D. (Creator), Bryant, J. J. (Creator), Jarvis, M. J. (Creator), Bland-Hawthorn, J. (Creator), Magdis, G. E. (Creator), Medling, A. M. (Creator), Sweet, S. M. (Creator) & Tonini, C. (Creator), SAO/NASA Astrophysics Data System (ADS), Jan 2019