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KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since z ≈ 1

Tiley, A.L.; Bureau, M.; Cortese, L.; Harrison, C.M.; Johnson, H.L.; Stott, J.P.; Swinbank, A.M.; Smail, I.; Sobral, D.; Bunker, A.J.; Glazebrook, K.; Bower, R.G.; Obreschkow, D.; Bryant, J.J.; Jarvis, M.J.; Bland-Hawthorn, J.; Magdis, G.; Medling, A.M.; Sweet, S.M.; Tonini, C.; Turner, O.J.; Sharples, R.M.; Croom, S.M.; Goodwin, M.; Konstantopoulos, I.S.; Lorente, N.P.F.; Lawrence, J.S.; Mould, J.; Owers, M.S.; Richards, S.N.

KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since z ≈ 1 Thumbnail


A.L. Tiley

M. Bureau

L. Cortese

C.M. Harrison

H.L. Johnson

J.P. Stott

D. Sobral

A.J. Bunker

K. Glazebrook

R.G. Bower

D. Obreschkow

J.J. Bryant

M.J. Jarvis

J. Bland-Hawthorn

G. Magdis

A.M. Medling

S.M. Sweet

C. Tonini

O.J. Turner

S.M. Croom

M. Goodwin

I.S. Konstantopoulos

N.P.F. Lorente

J.S. Lawrence

J. Mould

M.S. Owers

S.N. Richards


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.

Journal Article Type Article
Acceptance Date Oct 15, 2018
Online Publication Date Oct 17, 2018
Publication Date Jan 11, 2019
Deposit Date Nov 21, 2018
Publicly Available Date Nov 21, 2018
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 482
Issue 2
Pages 2166-2188
Public URL


Published Journal Article (5.5 Mb)

Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2018 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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