Kross-Sami: A direct IFS comparison of the Tully-Fisher relation across 8 Gyr since z ≈ 1 ...

• Main Authors: Tiley, A. L., Bureau, M., Cortese, Luca, Harrison, C. M., Johnson, H. L., Stott, J. P., Swinbank, A. M., Smail, I., Sobral, D., Bunker, A. J., Glazebrook, Karl, Bower, R. G., Obreschkow, D., Bryant, J. J., Jarvis, M. J., Bland-Hawthorn, J., Magdis, G., Medling, A. M., Sweet, Sarah, Tonini, C., Turner, O. J., Sharples, R. M., Croom, S. M., Goodwin, M., Konstantopoulos, I. S., Lorente, N. P.F., Lawrence, J. S., Mould, Jeremy, Owers, M. S., Richards, S. N.
• Format: Text
• Language: unknown
• Published: Swinburne 2024
• Subjects: Kross; Zero Point; sami
• Online Access: https://dx.doi.org/10.25916/sut.26249684; https://figshare.swinburne.edu.au/articles/journal_contribution/Kross-Sami_A_direct_IFS_comparison_of_the_Tully-Fisher_relation_across_8_Gyr_since_z_1/26249684

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 ...