KROSS-SAMI: a direct IFS comparison of the Tully-Fisher relation across 8 Gyr since z ≈ 1
External Organisations Durham University; University of Oxford; Newcastle University; Lancaster University; Swinburne University of Technology; ARC Centre of Excellence for All-sky Astrophysics; University of Sydney; University of the Western Cape; Western Sydney University; University of California...
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| Format: | Dataset |
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The University of Western Australia
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| Online Access: | https://researchdata.edu.au/kross-sami-direct-z-1/1732062 https://doi.org/10.1093/mnras/sty2794 |
| Summary: | External Organisations Durham University; University of Oxford; Newcastle University; Lancaster University; Swinburne University of Technology; ARC Centre of Excellence for All-sky Astrophysics; University of Sydney; University of the Western Cape; Western Sydney University; University of California Berkeley; Australian Astronomical Observatory; University of Copenhagen; Technical University of Denmark; Australian National University; University of Toledo; University of Melbourne 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 ... |
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