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    Rights statement: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version H L Johnson, C M Harrison, A M Swinbank, A L Tiley, J P Stott, R G Bower, Ian Smail, A J Bunker, D Sobral, O J Turner, P Best, M Bureau, M Cirasuolo, M J Jarvis, G Magdis, R M Sharples, J Bland-Hawthorn, B Catinella, L Cortese, S M Croom, C Federrath, K Glazebrook, S M Sweet, J J Bryant, M Goodwin, I S Konstantopoulos, J S Lawrence, A M Medling, M S Owers, S Richards; The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z ≈ 1 star-forming galaxies, Monthly Notices of the Royal Astronomical Society, Volume 474, Issue 4, 11 March 2018, Pages 5076–5104, https://doi.org/10.1093/mnras/stx3016 is available online at: https://academic.oup.com/mnras/article/474/4/5076/4655192

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The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z~0.9 star-forming galaxies

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The KMOS Redshift One Spectroscopic Survey (KROSS) : the origin of disc turbulence in z~0.9 star-forming galaxies. / Johnson, H. L.; Harrison, C. M.; Swinbank, A. M. et al.

In: Monthly Notices of the Royal Astronomical Society, Vol. 474, No. 4, 11.03.2018, p. 5076-5104.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Johnson, HL, Harrison, CM, Swinbank, AM, Tiley, AL, Stott, JP, Bower, RG, Smail, I, Bunker, AJ, Sobral, D, Turner, OJ, Best, P, Bureau, M, Cirasuolo, M, Jarvis, MJ, Magdis, G, Sharples, RM, Bland-Hawthorn, J, Catinella, B, Cortese, L, Croom, SM, Federrath, C, Glazebrook, K, Sweet, SM, Bryant, JJ, Goodwin, M, Konstantopoulos, IS, Lawrence, JS, Medling, AM, Owers, MS & Richards, S 2018, 'The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z~0.9 star-forming galaxies', Monthly Notices of the Royal Astronomical Society, vol. 474, no. 4, pp. 5076-5104. https://doi.org/10.1093/mnras/stx3016

APA

Johnson, H. L., Harrison, C. M., Swinbank, A. M., Tiley, A. L., Stott, J. P., Bower, R. G., Smail, I., Bunker, A. J., Sobral, D., Turner, O. J., Best, P., Bureau, M., Cirasuolo, M., Jarvis, M. J., Magdis, G., Sharples, R. M., Bland-Hawthorn, J., Catinella, B., Cortese, L., ... Richards, S. (2018). The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z~0.9 star-forming galaxies. Monthly Notices of the Royal Astronomical Society, 474(4), 5076-5104. https://doi.org/10.1093/mnras/stx3016

Vancouver

Johnson HL, Harrison CM, Swinbank AM, Tiley AL, Stott JP, Bower RG et al. The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z~0.9 star-forming galaxies. Monthly Notices of the Royal Astronomical Society. 2018 Mar 11;474(4):5076-5104. Epub 2017 Nov 23. doi: 10.1093/mnras/stx3016

Author

Johnson, H. L. ; Harrison, C. M. ; Swinbank, A. M. et al. / The KMOS Redshift One Spectroscopic Survey (KROSS) : the origin of disc turbulence in z~0.9 star-forming galaxies. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 474, No. 4. pp. 5076-5104.

Bibtex

@article{3a458e8117a14989bd4a13f17bb58940,
title = "The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z~0.9 star-forming galaxies",
abstract = "We analyse the velocity dispersion properties of 472 z~0.9 star-forming galaxies observed as part of the KMOS Redshift One Spectroscopic Survey (KROSS). The majority of this sample is rotationally dominated (83 +/- 5% with v_C/sigma_0 > 1) but also dynamically hot and highly turbulent. After correcting for beam smearing effects, the median intrinsic velocity dispersion for the final sample is sigma_0 = 43.2 +/- 0.8 km/s with a rotational velocity to dispersion ratio of v_C/sigma_0 = 2.6 +/- 0.1. To explore the relationship between velocity dispersion, stellar mass, star formation rate and redshift we combine KROSS with data from the SAMI survey (z~0.05) and an intermediate redshift MUSE sample (z~0.5). While there is, at most, a weak trend between velocity dispersion and stellar mass, at fixed mass there is a strong increase with redshift. At all redshifts, galaxies appear to follow the same weak trend of increasing velocity dispersion with star formation rate. Our results are consistent with an evolution of galaxy dynamics driven by disks that are more gas rich, and increasingly gravitationally unstable, as a function of increasing redshift. Finally, we test two analytic models that predict turbulence is driven by either gravitational instabilities or stellar feedback. Both provide an adequate description of the data, and further observations are required to rule out either model.",
keywords = "astro-ph.GA, galaxies: evolution, galaxies: high-redshift, galaxies: kinematics and dynamics, infrared: galaxies",
author = "Johnson, {H. L.} and Harrison, {C. M.} and Swinbank, {A. M.} and Tiley, {A. L.} and Stott, {J. P.} and Bower, {R. G.} and Ian Smail and Bunker, {A. J.} and D. Sobral and Turner, {O. J.} and P. Best and M. Bureau and M. Cirasuolo and Jarvis, {M. J.} and G. Magdis and Sharples, {R. M.} and J. Bland-Hawthorn and B. Catinella and L. Cortese and Croom, {S. M.} and C. Federrath and K. Glazebrook and Sweet, {S. M.} and Bryant, {J. J.} and M. Goodwin and Konstantopoulos, {I. S.} and Lawrence, {J. S.} and Medling, {A. M.} and Owers, {M. S.} and S. Richards",
note = "This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version H L Johnson, C M Harrison, A M Swinbank, A L Tiley, J P Stott, R G Bower, Ian Smail, A J Bunker, D Sobral, O J Turner, P Best, M Bureau, M Cirasuolo, M J Jarvis, G Magdis, R M Sharples, J Bland-Hawthorn, B Catinella, L Cortese, S M Croom, C Federrath, K Glazebrook, S M Sweet, J J Bryant, M Goodwin, I S Konstantopoulos, J S Lawrence, A M Medling, M S Owers, S Richards; The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z ≈ 1 star-forming galaxies, Monthly Notices of the Royal Astronomical Society, Volume 474, Issue 4, 11 March 2018, Pages 5076–5104, https://doi.org/10.1093/mnras/stx3016 is available online at: https://academic.oup.com/mnras/article/474/4/5076/4655192 Data available at http://astro.dur.ac.uk/KROSS",
year = "2018",
month = mar,
day = "11",
doi = "10.1093/mnras/stx3016",
language = "English",
volume = "474",
pages = "5076--5104",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "4",

}

RIS

TY - JOUR

T1 - The KMOS Redshift One Spectroscopic Survey (KROSS)

T2 - the origin of disc turbulence in z~0.9 star-forming galaxies

AU - Johnson, H. L.

AU - Harrison, C. M.

AU - Swinbank, A. M.

AU - Tiley, A. L.

AU - Stott, J. P.

AU - Bower, R. G.

AU - Smail, Ian

AU - Bunker, A. J.

AU - Sobral, D.

AU - Turner, O. J.

AU - Best, P.

AU - Bureau, M.

AU - Cirasuolo, M.

AU - Jarvis, M. J.

AU - Magdis, G.

AU - Sharples, R. M.

AU - Bland-Hawthorn, J.

AU - Catinella, B.

AU - Cortese, L.

AU - Croom, S. M.

AU - Federrath, C.

AU - Glazebrook, K.

AU - Sweet, S. M.

AU - Bryant, J. J.

AU - Goodwin, M.

AU - Konstantopoulos, I. S.

AU - Lawrence, J. S.

AU - Medling, A. M.

AU - Owers, M. S.

AU - Richards, S.

N1 - This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version H L Johnson, C M Harrison, A M Swinbank, A L Tiley, J P Stott, R G Bower, Ian Smail, A J Bunker, D Sobral, O J Turner, P Best, M Bureau, M Cirasuolo, M J Jarvis, G Magdis, R M Sharples, J Bland-Hawthorn, B Catinella, L Cortese, S M Croom, C Federrath, K Glazebrook, S M Sweet, J J Bryant, M Goodwin, I S Konstantopoulos, J S Lawrence, A M Medling, M S Owers, S Richards; The KMOS Redshift One Spectroscopic Survey (KROSS): the origin of disc turbulence in z ≈ 1 star-forming galaxies, Monthly Notices of the Royal Astronomical Society, Volume 474, Issue 4, 11 March 2018, Pages 5076–5104, https://doi.org/10.1093/mnras/stx3016 is available online at: https://academic.oup.com/mnras/article/474/4/5076/4655192 Data available at http://astro.dur.ac.uk/KROSS

PY - 2018/3/11

Y1 - 2018/3/11

N2 - We analyse the velocity dispersion properties of 472 z~0.9 star-forming galaxies observed as part of the KMOS Redshift One Spectroscopic Survey (KROSS). The majority of this sample is rotationally dominated (83 +/- 5% with v_C/sigma_0 > 1) but also dynamically hot and highly turbulent. After correcting for beam smearing effects, the median intrinsic velocity dispersion for the final sample is sigma_0 = 43.2 +/- 0.8 km/s with a rotational velocity to dispersion ratio of v_C/sigma_0 = 2.6 +/- 0.1. To explore the relationship between velocity dispersion, stellar mass, star formation rate and redshift we combine KROSS with data from the SAMI survey (z~0.05) and an intermediate redshift MUSE sample (z~0.5). While there is, at most, a weak trend between velocity dispersion and stellar mass, at fixed mass there is a strong increase with redshift. At all redshifts, galaxies appear to follow the same weak trend of increasing velocity dispersion with star formation rate. Our results are consistent with an evolution of galaxy dynamics driven by disks that are more gas rich, and increasingly gravitationally unstable, as a function of increasing redshift. Finally, we test two analytic models that predict turbulence is driven by either gravitational instabilities or stellar feedback. Both provide an adequate description of the data, and further observations are required to rule out either model.

AB - We analyse the velocity dispersion properties of 472 z~0.9 star-forming galaxies observed as part of the KMOS Redshift One Spectroscopic Survey (KROSS). The majority of this sample is rotationally dominated (83 +/- 5% with v_C/sigma_0 > 1) but also dynamically hot and highly turbulent. After correcting for beam smearing effects, the median intrinsic velocity dispersion for the final sample is sigma_0 = 43.2 +/- 0.8 km/s with a rotational velocity to dispersion ratio of v_C/sigma_0 = 2.6 +/- 0.1. To explore the relationship between velocity dispersion, stellar mass, star formation rate and redshift we combine KROSS with data from the SAMI survey (z~0.05) and an intermediate redshift MUSE sample (z~0.5). While there is, at most, a weak trend between velocity dispersion and stellar mass, at fixed mass there is a strong increase with redshift. At all redshifts, galaxies appear to follow the same weak trend of increasing velocity dispersion with star formation rate. Our results are consistent with an evolution of galaxy dynamics driven by disks that are more gas rich, and increasingly gravitationally unstable, as a function of increasing redshift. Finally, we test two analytic models that predict turbulence is driven by either gravitational instabilities or stellar feedback. Both provide an adequate description of the data, and further observations are required to rule out either model.

KW - astro-ph.GA

KW - galaxies: evolution

KW - galaxies: high-redshift

KW - galaxies: kinematics and dynamics

KW - infrared: galaxies

U2 - 10.1093/mnras/stx3016

DO - 10.1093/mnras/stx3016

M3 - Journal article

VL - 474

SP - 5076

EP - 5104

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -