Kross-Sami: A direct IFS comparison of the Tully-Fisher relation across 8 Gyr since z ≈ 1 ...
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-...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Text |
Language: | unknown |
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Swinburne
2024
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Subjects: | |
Online Access: | https://dx.doi.org/10.25916/sut.26249684.v1 https://figshare.swinburne.edu.au/articles/journal_contribution/Kross-Sami_A_direct_IFS_comparison_of_the_Tully-Fisher_relation_across_8_Gyr_since_z_1/26249684/1 |
Summary: | 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 ... |
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