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

Research output: Contribution to journalReview article

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 mass M and the general kinematic parameter SK = √KV2rot + σ2 that combines rotation velocity Vrot and velocity dispersion σ. 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 Vrot) for late types or the Faber.Jackson relation (logM - log σ) 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 (σ3″ ). We find that while SK and σ3″ are in general tightly correlated, the logM - log SK relation has less scatter than the logM - log σ3″ relation.

Original languageEnglish
Pages (from-to)2924-2936
Number of pages13
JournalMonthly Notices of the Royal Astronomical Society
Volume487
Issue number2
DOIs
Publication statusPublished - 2019 Jan 1

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kinematics
apertures
spectroscopy
galaxies
scaling
stellar mass
slopes
moments
radii
gases
gas
parameter

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Barat, D., D'Eugenio, F., Colless, M., Brough, S., Catinella, B., Cortese, L., ... 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
Barat, Dilyar ; D'Eugenio, Francesco ; Colless, Matthew ; Brough, Sarah ; Catinella, Barbara ; Cortese, Luca ; Croom, Scott M. ; Medling, Anne M. ; Oh, Sree ; Van De Sande, Jesse ; Sweet, Sarah M. ; Yi, Sukyoung K. ; Bland-Hawthorn, Joss ; Bryant, Julia ; Goodwin, Michael ; Groves, Brent ; Lawrence, Jon ; Owers, Matt S. ; Richards, Samuel N. ; Scott, Nicholas. / The SAMI galaxy survey : Mass-kinematics scaling relations. In: Monthly Notices of the Royal Astronomical Society. 2019 ; Vol. 487, No. 2. pp. 2924-2936.
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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 mass M∗ and the general kinematic parameter SK = √KV2rot + σ2 that combines rotation velocity Vrot and velocity dispersion σ. 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 Vrot) for late types or the Faber.Jackson relation (logM∗ - log σ) 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 (σ3″ ). We find that while SK and σ3″ are in general tightly correlated, the logM∗ - log SK relation has less scatter than the logM∗ - log σ3″ relation.",
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",
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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

The SAMI galaxy survey : Mass-kinematics scaling relations. / Barat, Dilyar; D'Eugenio, Francesco; Colless, Matthew; Brough, Sarah; Catinella, Barbara; Cortese, Luca; Croom, Scott M.; Medling, Anne M.; Oh, Sree; Van De Sande, Jesse; Sweet, Sarah M.; Yi, Sukyoung K.; Bland-Hawthorn, Joss; Bryant, Julia; Goodwin, Michael; Groves, Brent; Lawrence, Jon; Owers, Matt S.; Richards, Samuel N.; Scott, Nicholas.

In: Monthly Notices of the Royal Astronomical Society, Vol. 487, No. 2, 01.01.2019, p. 2924-2936.

Research output: Contribution to journalReview article

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 - 2019/1/1

Y1 - 2019/1/1

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 mass M∗ and the general kinematic parameter SK = √KV2rot + σ2 that combines rotation velocity Vrot and velocity dispersion σ. 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 Vrot) for late types or the Faber.Jackson relation (logM∗ - log σ) 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 (σ3″ ). We find that while SK and σ3″ are in general tightly correlated, the logM∗ - log SK relation has less scatter than the logM∗ - log σ3″ 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 mass M∗ and the general kinematic parameter SK = √KV2rot + σ2 that combines rotation velocity Vrot and velocity dispersion σ. 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 Vrot) for late types or the Faber.Jackson relation (logM∗ - log σ) 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 (σ3″ ). We find that while SK and σ3″ are in general tightly correlated, the logM∗ - log SK relation has less scatter than the logM∗ - log σ3″ relation.

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U2 - 10.1093/mnras/stz1439

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Barat D, D'Eugenio F, Colless M, Brough S, Catinella B, Cortese L et al. The SAMI galaxy survey: Mass-kinematics scaling relations. Monthly Notices of the Royal Astronomical Society. 2019 Jan 1;487(2):2924-2936. https://doi.org/10.1093/mnras/stz1439