KROSS-SAMI: a direct IFS comparison of the Tully-Fisher relation across 8 Gyr since z ≈ 1

• Other Authors: Alfred Tiley (Creator), Danail Obreschkow (Creator), Intl Centre for Radio Astronomy Research (ICRAR) (isManagedBy), Luca Cortese (Creator)
• Format: Dataset
• Language: unknown
• Published: The University of Western Australia
• Subjects: galaxies: evolution; galaxies: general; galaxies: kinematics and dynamics; galaxies: star formation; Astrophysics - Astrophysics of Galaxies; Bower; Bryant; Kross; Sobral; Zero Point; sami
• Online Access: https://researchdata.edu.au/kross-sami-direct-z-1/1732062; https://doi.org/10.1093/mnras/sty2794

External Organisations Durham University; University of Oxford Associated Persons Martin Bureau (Creator); Chris M. Harrison (Creator); H. L. Johnson (Creator); John P. Stott (Creator); A. M. Swinbank (Creator); Ian Smail (Creator); David Sobral (Creator); A. J. Bunker (Creator); K. Glazebrook (Creator); R. G. Bower (Creator); J. J. Bryant (Creator); M.J. Jarvis (Creator); J. Bland-Hawthorn (Creator); Georgios E. Magdis (Creator); Anne M. Medling (Creator); Sarah M. Sweet (Creator); C. Tonini (Creator) We construct Tully-Fisher relations (TFRs), from large samples of galaxies with spatially resolved H α emission maps from the K-band Multi-Object Spectrograph (KMOS) Redshift One Spectroscopic Survey (KROSS) at z ≈ 1. We compare these to data from the Sydney-Australian-Astronomical-Observatory Multi-object Integral-Field Spectrograph (SAMI) Galaxy Survey at z ≈ 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 ≈ 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 as or larger than the differences between the KROSS z ≈ 1 and matched SAMI z ≈ 0 relations. Accounting for these differences, we compare the TFRs at z ≈ 1 and 0. For disc-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 ≈8 Gyr period.