SIMBAD references

2020MNRAS.495.2265V - Mon. Not. R. Astron. Soc., 495, 2265-2284 (2020/June-3)

The SAMI galaxy survey: gas velocity dispersions in low-z star-forming galaxies and the drivers of turbulence.

VARIDEL M.R., CROOM S.M., LEWIS G.F., FISHER D.B., GLAZEBROOK K., CATINELLA B., CORTESE L., KRUMHOLZ M.R., BLAND-HAWTHORN J., BRYANT J.J., GROVES B., BROUGH S., FEDERRATH C., LAWRENCE J.S., LORENTE N.P., OWERS M.S., RICHARDS S.N., LOPEZ-SANCHEZ A.R., SWEET S.M., VAN DE SANDE J. and VAUGHAN S.P.

Abstract (from CDS):

We infer the intrinsic ionized gas kinematics for 383 star-forming galaxies across a range of integrated star formation rates (SFR ∈ [10–3, 102] M☉ yr–1) at z <= 0.1 using a consistent 3D forward-modelling technique. The total sample is a combination of galaxies from the Sydney-AAO Multiobject Integral field Spectrograph (SAMI) Galaxy survey and DYnamics of Newly Assembled Massive Objects survey. For typical low-z galaxies taken from the SAMI Galaxy Survey, we find the vertical velocity dispersion (σv,z) to be positively correlated with measures of SFR, stellar mass, H I gas mass, and rotational velocity. The greatest correlation is with SFR surface density (ΣSFR). Using the total sample, we find σv,z increases slowly as a function of integrated SFR in the range SFR ∈ [10–3, 1] M☉ yr–1 from 17 ± 3 to 24 ± 5 km s–1 followed by a steeper increase up to σv,z ∼80 km s–1 for SFR >= 1 M☉ yr–1. This is consistent with recent theoretical models that suggest a σv,z floor driven by star formation feedback processes with an upturn in σv,z at higher SFR driven by gravitational transport of gas through the disc.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - methods: statistical - techniques: imaging spectroscopy - galaxies: disc

VizieR on-line data: <Available at CDS (J/MNRAS/495/2265): tablea1.dat>

Simbad objects: 342

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