The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies

Alexander Rawlings; Caroline Foster; Jesse van de Sande; Dan S. Taranu; Scott M. Croom; Joss Bland-Hawthorn; Sarah Brough; Julia J. Bryant; Matthew Colless; Claudia del P. Lagos; Iraklis S. Konstantopoulos; Jon S. Lawrence; Ángel R. López-Sánchez; Nuria P.F. Lorente; Anne M. Medling; Sree Oh; Matt S. Owers; Samuel N. Richards; Nicholas Scott; Sarah M. Sweet; Sukyoung K. Yi

The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies

Alexander Rawlings, Caroline Foster, Jesse van de Sande, Dan S. Taranu, Scott M. Croom, Joss Bland-Hawthorn, Sarah Brough, Julia J. Bryant, Matthew Colless, Claudia del P. Lagos, Iraklis S. Konstantopoulos, Jon S. Lawrence, Ángel R. López-Sánchez, Nuria P.F. Lorente, Anne M. Medling, Sree Oh, Matt S. Owers, Samuel N. Richards, Nicholas Scott, Sarah M. SweetSukyoung K. Yi

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

Abstract

We study the behaviour of the spin-ellipticity radial tracks for 507 galaxies from the Sydney AAO Multi-object Integral Field (SAMI) Galaxy Survey with stellar kinematics out to ≥ 1.5R_e. We advocate for a morpho-dynamical classification of galaxies, relying on spatially-resolved photometric and kinematic data. We find the use of spin-ellipticity radial tracks is valuable in identifying substructures within a galaxy, including embedded and counter-rotating discs, that are easily missed in unilateral studies of the photometry alone. Conversely, bars are rarely apparent in the stellar kinematics but are readily identified on images. Consequently, we distinguish the spin-ellipticity radial tracks of seven morpho-dynamical types: elliptical, lenticular, early spiral, late spiral, barred spiral, embedded disc, and 2-sigma galaxies. The importance of probing beyond the inner radii of galaxies is highlighted by the characteristics of galactic features in the spin-ellipticity radial tracks present at larger radii. The density of information presented through spin-ellipticity radial tracks emphasises a clear advantage to representing galaxies as a track, rather than a single point, in spin-ellipticity parameter space.

Original language	English
Journal	Unknown Journal
Publication status	Published - 2019 Oct 3

All Science Journal Classification (ASJC) codes

General

Fingerprint Dive into the research topics of 'The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies'. Together they form a unique fingerprint.

Cite this

Rawlings, A., Foster, C., van de Sande, J., Taranu, D. S., Croom, S. M., Bland-Hawthorn, J., Brough, S., Bryant, J. J., Colless, M., Lagos, C. D. P., Konstantopoulos, I. S., Lawrence, J. S., López-Sánchez, Á. R., Lorente, N. P. F., Medling, A. M., Oh, S., Owers, M. S., Richards, S. N., Scott, N., ... Yi, S. K. (2019). The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies. Unknown Journal.

Rawlings, Alexander ; Foster, Caroline ; van de Sande, Jesse ; Taranu, Dan S. ; Croom, Scott M. ; Bland-Hawthorn, Joss ; Brough, Sarah ; Bryant, Julia J. ; Colless, Matthew ; Lagos, Claudia del P. ; Konstantopoulos, Iraklis S. ; Lawrence, Jon S. ; López-Sánchez, Ángel R. ; Lorente, Nuria P.F. ; Medling, Anne M. ; Oh, Sree ; Owers, Matt S. ; Richards, Samuel N. ; Scott, Nicholas ; Sweet, Sarah M. ; Yi, Sukyoung K. / The SAMI Galaxy Survey : rules of behaviour for spin-ellipticity radial tracks in galaxies. In: Unknown Journal. 2019.

@article{c3d0d6269358443093690bc13b6297d6,

title = "The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies",

abstract = "We study the behaviour of the spin-ellipticity radial tracks for 507 galaxies from the Sydney AAO Multi-object Integral Field (SAMI) Galaxy Survey with stellar kinematics out to ≥ 1.5Re. We advocate for a morpho-dynamical classification of galaxies, relying on spatially-resolved photometric and kinematic data. We find the use of spin-ellipticity radial tracks is valuable in identifying substructures within a galaxy, including embedded and counter-rotating discs, that are easily missed in unilateral studies of the photometry alone. Conversely, bars are rarely apparent in the stellar kinematics but are readily identified on images. Consequently, we distinguish the spin-ellipticity radial tracks of seven morpho-dynamical types: elliptical, lenticular, early spiral, late spiral, barred spiral, embedded disc, and 2-sigma galaxies. The importance of probing beyond the inner radii of galaxies is highlighted by the characteristics of galactic features in the spin-ellipticity radial tracks present at larger radii. The density of information presented through spin-ellipticity radial tracks emphasises a clear advantage to representing galaxies as a track, rather than a single point, in spin-ellipticity parameter space.",

author = "Alexander Rawlings and Caroline Foster and {van de Sande}, Jesse and Taranu, {Dan S.} and Croom, {Scott M.} and Joss Bland-Hawthorn and Sarah Brough and Bryant, {Julia J.} and Matthew Colless and Lagos, {Claudia del P.} and Konstantopoulos, {Iraklis S.} and Lawrence, {Jon S.} and L{\'o}pez-S{\'a}nchez, {{\'A}ngel R.} and Lorente, {Nuria P.F.} and Medling, {Anne M.} and Sree Oh and Owers, {Matt S.} and Richards, {Samuel N.} and Nicholas Scott and Sweet, {Sarah M.} and Yi, {Sukyoung K.}",

year = "2019",

month = oct,

day = "3",

language = "English",

journal = "Review of Economic Dynamics",

issn = "1094-2025",

publisher = "Academic Press Inc.",

}

Rawlings, A, Foster, C, van de Sande, J, Taranu, DS, Croom, SM, Bland-Hawthorn, J, Brough, S, Bryant, JJ, Colless, M, Lagos, CDP, Konstantopoulos, IS, Lawrence, JS, López-Sánchez, ÁR, Lorente, NPF, Medling, AM, Oh, S, Owers, MS, Richards, SN, Scott, N, Sweet, SM & Yi, SK 2019, 'The SAMI Galaxy Survey: rules of behaviour for spin-ellipticity radial tracks in galaxies', Unknown Journal.

The SAMI Galaxy Survey : rules of behaviour for spin-ellipticity radial tracks in galaxies. / Rawlings, Alexander; Foster, Caroline; van de Sande, Jesse; Taranu, Dan S.; Croom, Scott M.; Bland-Hawthorn, Joss; Brough, Sarah; Bryant, Julia J.; Colless, Matthew; Lagos, Claudia del P.; Konstantopoulos, Iraklis S.; Lawrence, Jon S.; López-Sánchez, Ángel R.; Lorente, Nuria P.F.; Medling, Anne M.; Oh, Sree; Owers, Matt S.; Richards, Samuel N.; Scott, Nicholas; Sweet, Sarah M.; Yi, Sukyoung K.

In: Unknown Journal, 03.10.2019.

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

TY - JOUR

T1 - The SAMI Galaxy Survey

T2 - rules of behaviour for spin-ellipticity radial tracks in galaxies

AU - Rawlings, Alexander

AU - Foster, Caroline

AU - van de Sande, Jesse

AU - Taranu, Dan S.

AU - Croom, Scott M.

AU - Bland-Hawthorn, Joss

AU - Brough, Sarah

AU - Bryant, Julia J.

AU - Colless, Matthew

AU - Lagos, Claudia del P.

AU - Konstantopoulos, Iraklis S.

AU - Lawrence, Jon S.

AU - López-Sánchez, Ángel R.

AU - Lorente, Nuria P.F.

AU - Medling, Anne M.

AU - Oh, Sree

AU - Owers, Matt S.

AU - Richards, Samuel N.

AU - Scott, Nicholas

AU - Sweet, Sarah M.

AU - Yi, Sukyoung K.

PY - 2019/10/3

Y1 - 2019/10/3

N2 - We study the behaviour of the spin-ellipticity radial tracks for 507 galaxies from the Sydney AAO Multi-object Integral Field (SAMI) Galaxy Survey with stellar kinematics out to ≥ 1.5Re. We advocate for a morpho-dynamical classification of galaxies, relying on spatially-resolved photometric and kinematic data. We find the use of spin-ellipticity radial tracks is valuable in identifying substructures within a galaxy, including embedded and counter-rotating discs, that are easily missed in unilateral studies of the photometry alone. Conversely, bars are rarely apparent in the stellar kinematics but are readily identified on images. Consequently, we distinguish the spin-ellipticity radial tracks of seven morpho-dynamical types: elliptical, lenticular, early spiral, late spiral, barred spiral, embedded disc, and 2-sigma galaxies. The importance of probing beyond the inner radii of galaxies is highlighted by the characteristics of galactic features in the spin-ellipticity radial tracks present at larger radii. The density of information presented through spin-ellipticity radial tracks emphasises a clear advantage to representing galaxies as a track, rather than a single point, in spin-ellipticity parameter space.

AB - We study the behaviour of the spin-ellipticity radial tracks for 507 galaxies from the Sydney AAO Multi-object Integral Field (SAMI) Galaxy Survey with stellar kinematics out to ≥ 1.5Re. We advocate for a morpho-dynamical classification of galaxies, relying on spatially-resolved photometric and kinematic data. We find the use of spin-ellipticity radial tracks is valuable in identifying substructures within a galaxy, including embedded and counter-rotating discs, that are easily missed in unilateral studies of the photometry alone. Conversely, bars are rarely apparent in the stellar kinematics but are readily identified on images. Consequently, we distinguish the spin-ellipticity radial tracks of seven morpho-dynamical types: elliptical, lenticular, early spiral, late spiral, barred spiral, embedded disc, and 2-sigma galaxies. The importance of probing beyond the inner radii of galaxies is highlighted by the characteristics of galactic features in the spin-ellipticity radial tracks present at larger radii. The density of information presented through spin-ellipticity radial tracks emphasises a clear advantage to representing galaxies as a track, rather than a single point, in spin-ellipticity parameter space.

UR - http://www.scopus.com/inward/record.url?scp=85095160896&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85095160896&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85095160896

JO - Review of Economic Dynamics

JF - Review of Economic Dynamics

SN - 1094-2025

ER -