The SAMI Galaxy Survey: mass-kinematics scaling relations

Dilyar Barat; Francesco D'Eugenio; Matthew Colless; Sarah Brough; Barbara Catinella; Luca Cortese; Scott M. Croom; Anne M. Medling; Sree Oh; Jesse van de Sande; Sarah M. Sweet; Sukyoung K. Yi; Joss Bland-Hawthorn; Julia Bryant; Michael Goodwin; Brent Groves; Jon Lawrence; Matt S. Owers; Samuel N. Richards; Nicholas Scott

doi:10.1093/mnras/stz1439

The SAMI Galaxy Survey: mass-kinematics scaling relations

Dilyar Barat, Francesco D'Eugenio, Matthew Colless, Sarah Brough, Barbara Catinella, Luca Cortese, Scott M. Croom, Anne M. Medling, Sree Oh, Jesse van de Sande, Sarah M. Sweet, Sukyoung K. Yi, Joss Bland-Hawthorn, Julia Bryant, Michael Goodwin, Brent Groves, Jon Lawrence, Matt S. Owers, Samuel N. Richards, Nicholas Scott

International Centre for Radio Astronomy Research (ICRAR)

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We use data from the Sydney-AAO Multi-object Integral-field spectroscopy (SAMI) Galaxy Survey to study the dynamical scaling relation between galaxy stellar massM* and the general kinematic parameter S-K = root KVrot2 + sigma(2) that combines rotation velocity V-rot and velocity dispersion s. We show that the logM* -logSK relation: (1) is linear above limits set by properties of the samples and observations; (2) has slightly different slope when derived from stellar or gas kinematic measurements; (3) applies to both early-type and late-type galaxies and has smaller scatter than either the Tully-Fisher relation (logM(*) -log V-rot) for late types or the Faber-Jackson relation (logM(*) - log s) for early types; and (4) has scatter that is only weakly sensitive to the value of K, with minimum scatter for K in the range 0.4 and 0.7. We compare SK to the aperture second moment (the 'aperture velocity dispersion') measured from the integrated spectrum within a 3-arcsecond radius aperture (sigma(3)"). We find that while SK and sigma(3)" are in general tightly correlated, the logM(*) -log SK relation has less scatter than the logM(*)-log sigma(3)" relation.

Original language	English
Pages (from-to)	2924-2936
Number of pages	13
Journal	Monthly Notices of the Royal Astronomical Society
Volume	487
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stz1439
Publication status	Published - 1 Aug 2019

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Barat, D., D'Eugenio, F., Colless, M., Brough, S., Catinella, B., Cortese, L., Croom, S. M., Medling, A. M., Oh, S., van de Sande, J., Sweet, S. M., Yi, S. K., Bland-Hawthorn, J., Bryant, J., Goodwin, M., Groves, B., Lawrence, J., Owers, M. S., Richards, S. N., & Scott, N. (2019). The SAMI Galaxy Survey: mass-kinematics scaling relations. Monthly Notices of the Royal Astronomical Society, 487(2), 2924-2936. https://doi.org/10.1093/mnras/stz1439

@article{3d37364ffbe54d2ea8072be5c3a06f48,

title = "The SAMI Galaxy Survey: mass-kinematics scaling relations",

abstract = "We use data from the Sydney-AAO Multi-object Integral-field spectroscopy (SAMI) Galaxy Survey to study the dynamical scaling relation between galaxy stellar massM* and the general kinematic parameter S-K = root KVrot2 + sigma(2) that combines rotation velocity V-rot and velocity dispersion s. We show that the logM* -logSK relation: (1) is linear above limits set by properties of the samples and observations; (2) has slightly different slope when derived from stellar or gas kinematic measurements; (3) applies to both early-type and late-type galaxies and has smaller scatter than either the Tully-Fisher relation (logM(*) -log V-rot) for late types or the Faber-Jackson relation (logM(*) - log s) for early types; and (4) has scatter that is only weakly sensitive to the value of K, with minimum scatter for K in the range 0.4 and 0.7. We compare SK to the aperture second moment (the 'aperture velocity dispersion') measured from the integrated spectrum within a 3-arcsecond radius aperture (sigma(3){"}). We find that while SK and sigma(3){"} are in general tightly correlated, the logM(*) -log SK relation has less scatter than the logM(*)-log sigma(3){"} relation.",

keywords = "Galaxy: kinematics and dynamics, Galaxy stellar content, Galaxy structure, TULLY-FISHER RELATION, ANGULAR-MOMENTUM, STELLAR MASS, DISTRIBUTIONS",

author = "Dilyar Barat and Francesco D'Eugenio and Matthew Colless and Sarah Brough and Barbara Catinella and Luca Cortese and Croom, {Scott M.} and Medling, {Anne M.} and Sree Oh and {van de Sande}, Jesse and Sweet, {Sarah M.} and Yi, {Sukyoung K.} and Joss Bland-Hawthorn and Julia Bryant and Michael Goodwin and Brent Groves and Jon Lawrence and Owers, {Matt S.} and Richards, {Samuel N.} and Nicholas Scott",

year = "2019",

month = aug,

day = "1",

doi = "10.1093/mnras/stz1439",

language = "English",

volume = "487",

pages = "2924--2936",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Barat, D, D'Eugenio, F, Colless, M, Brough, S, Catinella, B , Cortese, L, Croom, SM, Medling, AM, Oh, S, van de Sande, J, Sweet, SM, Yi, SK, Bland-Hawthorn, J, Bryant, J, Goodwin, M, Groves, B, Lawrence, J, Owers, MS, Richards, SN & Scott, N 2019, 'The SAMI Galaxy Survey: mass-kinematics scaling relations', Monthly Notices of the Royal Astronomical Society, vol. 487, no. 2, pp. 2924-2936. https://doi.org/10.1093/mnras/stz1439

TY - JOUR

T1 - The SAMI Galaxy Survey

T2 - mass-kinematics scaling relations

AU - Barat, Dilyar

AU - D'Eugenio, Francesco

AU - Colless, Matthew

AU - Brough, Sarah

AU - Catinella, Barbara

AU - Cortese, Luca

AU - Croom, Scott M.

AU - Medling, Anne M.

AU - Oh, Sree

AU - van de Sande, Jesse

AU - Sweet, Sarah M.

AU - Yi, Sukyoung K.

AU - Bland-Hawthorn, Joss

AU - Bryant, Julia

AU - Goodwin, Michael

AU - Groves, Brent

AU - Lawrence, Jon

AU - Owers, Matt S.

AU - Richards, Samuel N.

AU - Scott, Nicholas

PY - 2019/8/1

Y1 - 2019/8/1

N2 - We use data from the Sydney-AAO Multi-object Integral-field spectroscopy (SAMI) Galaxy Survey to study the dynamical scaling relation between galaxy stellar massM* and the general kinematic parameter S-K = root KVrot2 + sigma(2) that combines rotation velocity V-rot and velocity dispersion s. We show that the logM* -logSK relation: (1) is linear above limits set by properties of the samples and observations; (2) has slightly different slope when derived from stellar or gas kinematic measurements; (3) applies to both early-type and late-type galaxies and has smaller scatter than either the Tully-Fisher relation (logM(*) -log V-rot) for late types or the Faber-Jackson relation (logM(*) - log s) for early types; and (4) has scatter that is only weakly sensitive to the value of K, with minimum scatter for K in the range 0.4 and 0.7. We compare SK to the aperture second moment (the 'aperture velocity dispersion') measured from the integrated spectrum within a 3-arcsecond radius aperture (sigma(3)"). We find that while SK and sigma(3)" are in general tightly correlated, the logM(*) -log SK relation has less scatter than the logM(*)-log sigma(3)" relation.

AB - We use data from the Sydney-AAO Multi-object Integral-field spectroscopy (SAMI) Galaxy Survey to study the dynamical scaling relation between galaxy stellar massM* and the general kinematic parameter S-K = root KVrot2 + sigma(2) that combines rotation velocity V-rot and velocity dispersion s. We show that the logM* -logSK relation: (1) is linear above limits set by properties of the samples and observations; (2) has slightly different slope when derived from stellar or gas kinematic measurements; (3) applies to both early-type and late-type galaxies and has smaller scatter than either the Tully-Fisher relation (logM(*) -log V-rot) for late types or the Faber-Jackson relation (logM(*) - log s) for early types; and (4) has scatter that is only weakly sensitive to the value of K, with minimum scatter for K in the range 0.4 and 0.7. We compare SK to the aperture second moment (the 'aperture velocity dispersion') measured from the integrated spectrum within a 3-arcsecond radius aperture (sigma(3)"). We find that while SK and sigma(3)" are in general tightly correlated, the logM(*) -log SK relation has less scatter than the logM(*)-log sigma(3)" relation.

KW - Galaxy: kinematics and dynamics

KW - Galaxy stellar content

KW - Galaxy structure

KW - TULLY-FISHER RELATION

KW - ANGULAR-MOMENTUM

KW - STELLAR MASS

KW - DISTRIBUTIONS

U2 - 10.1093/mnras/stz1439

DO - 10.1093/mnras/stz1439

M3 - Article

SN - 0035-8711

VL - 487

SP - 2924

EP - 2936

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The SAMI Galaxy Survey: mass-kinematics scaling relations

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