THE SAMI GALAXY SURVEY: galaxy interactions and kinetic anomalies in ABELL 119

Sree Oh, Sukyoung K. Yi, Luca Cortese, Jesse Van De Sande, Smriti Mahajan, Hyunjin Jeong, Yun Kyeong Sheen, James T. Allen, Kenji Bekki, Joss Bland-Hawthorn, Jessica V. Bloom, Sarah Brough, Julia J. Bryant, Matthew Colless, Scott M. Croom, Lisa M R Fogarty, Michael Goodwin, Andy Green, Iraklis S. Konstantopoulos, Jon S. Lawrence & 8 others R. López-Sánchez, Nuria P F Lorente, Anne M. Medling, Matt S. Owers, Samuel N. Richards, Nicholas Scott, Rob Sharp, Sarah M. Sweet

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star formation activity and mass growth. Merger systems have commonly been identified from their disturbed morphologies, and we now can employ integral field spectroscopy to detect and analyze the impact of mergers on stellar kinematics as well. We visually classified galaxy morphology using deep images (μr = 28 mag arcsec- 2 ) taken by the Blanco 4 m telescope at the Cerro Tololo Inter-American Observatory. In this paper we investigate 63 bright (Mr >-19.3) spectroscopically selected galaxies in Abell 119, of which 53 are early type and 20 show a disturbed morphology by visual inspection. A misalignment between the major axes in the photometric image and the kinematic map is conspicuous in morphologically disturbed galaxies. Our sample is dominated by early-type galaxies, yet it shows a surprisingly tight TullyFisher relation except for the morphologically disturbed galaxies which show large deviations. Three out of the eight slow rotators in our sample are morphologically disturbed. The morphologically disturbed galaxies are generally more asymmetric, visually as well as kinematically. Our findings suggest that galaxy interactions, including mergers and perhaps fly-bys, play an important role in determining the orientation and magnitude of a galaxys angular momentum.

Original languageEnglish
Article number69
JournalAstrophysical Journal
Volume832
Issue number1
DOIs
Publication statusPublished - 20 Nov 2016

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interacting galaxies
merger
anomalies
galaxies
anomaly
kinetics
kinematics
angular momentum
observatory
spectroscopy
misalignment
star formation
inspection
observatories
telescopes
deviation

Cite this

Oh, S., Yi, S. K., Cortese, L., Van De Sande, J., Mahajan, S., Jeong, H., ... Sweet, S. M. (2016). THE SAMI GALAXY SURVEY: galaxy interactions and kinetic anomalies in ABELL 119. Astrophysical Journal, 832(1), [69]. https://doi.org/10.3847/0004-637X/832/1/69
Oh, Sree ; Yi, Sukyoung K. ; Cortese, Luca ; Van De Sande, Jesse ; Mahajan, Smriti ; Jeong, Hyunjin ; Sheen, Yun Kyeong ; Allen, James T. ; Bekki, Kenji ; Bland-Hawthorn, Joss ; Bloom, Jessica V. ; Brough, Sarah ; Bryant, Julia J. ; Colless, Matthew ; Croom, Scott M. ; Fogarty, Lisa M R ; Goodwin, Michael ; Green, Andy ; Konstantopoulos, Iraklis S. ; Lawrence, Jon S. ; López-Sánchez, R. ; Lorente, Nuria P F ; Medling, Anne M. ; Owers, Matt S. ; Richards, Samuel N. ; Scott, Nicholas ; Sharp, Rob ; Sweet, Sarah M. / THE SAMI GALAXY SURVEY : galaxy interactions and kinetic anomalies in ABELL 119. In: Astrophysical Journal. 2016 ; Vol. 832, No. 1.
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abstract = "Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star formation activity and mass growth. Merger systems have commonly been identified from their disturbed morphologies, and we now can employ integral field spectroscopy to detect and analyze the impact of mergers on stellar kinematics as well. We visually classified galaxy morphology using deep images (μr = 28 mag arcsec- 2 ) taken by the Blanco 4 m telescope at the Cerro Tololo Inter-American Observatory. In this paper we investigate 63 bright (Mr >-19.3) spectroscopically selected galaxies in Abell 119, of which 53 are early type and 20 show a disturbed morphology by visual inspection. A misalignment between the major axes in the photometric image and the kinematic map is conspicuous in morphologically disturbed galaxies. Our sample is dominated by early-type galaxies, yet it shows a surprisingly tight TullyFisher relation except for the morphologically disturbed galaxies which show large deviations. Three out of the eight slow rotators in our sample are morphologically disturbed. The morphologically disturbed galaxies are generally more asymmetric, visually as well as kinematically. Our findings suggest that galaxy interactions, including mergers and perhaps fly-bys, play an important role in determining the orientation and magnitude of a galaxys angular momentum.",
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author = "Sree Oh and Yi, {Sukyoung K.} and Luca Cortese and {Van De Sande}, Jesse and Smriti Mahajan and Hyunjin Jeong and Sheen, {Yun Kyeong} and Allen, {James T.} and Kenji Bekki and Joss Bland-Hawthorn and Bloom, {Jessica V.} and Sarah Brough and Bryant, {Julia J.} and Matthew Colless and Croom, {Scott M.} and Fogarty, {Lisa M R} and Michael Goodwin and Andy Green and Konstantopoulos, {Iraklis S.} and Lawrence, {Jon S.} and R. L{\'o}pez-S{\'a}nchez and Lorente, {Nuria P F} and Medling, {Anne M.} and Owers, {Matt S.} and Richards, {Samuel N.} and Nicholas Scott and Rob Sharp and Sweet, {Sarah M.}",
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Oh, S, Yi, SK, Cortese, L, Van De Sande, J, Mahajan, S, Jeong, H, Sheen, YK, Allen, JT, Bekki, K, Bland-Hawthorn, J, Bloom, JV, Brough, S, Bryant, JJ, Colless, M, Croom, SM, Fogarty, LMR, Goodwin, M, Green, A, Konstantopoulos, IS, Lawrence, JS, López-Sánchez, R, Lorente, NPF, Medling, AM, Owers, MS, Richards, SN, Scott, N, Sharp, R & Sweet, SM 2016, 'THE SAMI GALAXY SURVEY: galaxy interactions and kinetic anomalies in ABELL 119' Astrophysical Journal, vol. 832, no. 1, 69. https://doi.org/10.3847/0004-637X/832/1/69

THE SAMI GALAXY SURVEY : galaxy interactions and kinetic anomalies in ABELL 119. / Oh, Sree; Yi, Sukyoung K.; Cortese, Luca; Van De Sande, Jesse; Mahajan, Smriti; Jeong, Hyunjin; Sheen, Yun Kyeong; Allen, James T.; Bekki, Kenji; Bland-Hawthorn, Joss; Bloom, Jessica V.; Brough, Sarah; Bryant, Julia J.; Colless, Matthew; Croom, Scott M.; Fogarty, Lisa M R; Goodwin, Michael; Green, Andy; Konstantopoulos, Iraklis S.; Lawrence, Jon S.; López-Sánchez, R.; Lorente, Nuria P F; Medling, Anne M.; Owers, Matt S.; Richards, Samuel N.; Scott, Nicholas; Sharp, Rob; Sweet, Sarah M.

In: Astrophysical Journal, Vol. 832, No. 1, 69, 20.11.2016.

Research output: Contribution to journalReview article

TY - JOUR

T1 - THE SAMI GALAXY SURVEY

T2 - galaxy interactions and kinetic anomalies in ABELL 119

AU - Oh, Sree

AU - Yi, Sukyoung K.

AU - Cortese, Luca

AU - Van De Sande, Jesse

AU - Mahajan, Smriti

AU - Jeong, Hyunjin

AU - Sheen, Yun Kyeong

AU - Allen, James T.

AU - Bekki, Kenji

AU - Bland-Hawthorn, Joss

AU - Bloom, Jessica V.

AU - Brough, Sarah

AU - Bryant, Julia J.

AU - Colless, Matthew

AU - Croom, Scott M.

AU - Fogarty, Lisa M R

AU - Goodwin, Michael

AU - Green, Andy

AU - Konstantopoulos, Iraklis S.

AU - Lawrence, Jon S.

AU - López-Sánchez, R.

AU - Lorente, Nuria P F

AU - Medling, Anne M.

AU - Owers, Matt S.

AU - Richards, Samuel N.

AU - Scott, Nicholas

AU - Sharp, Rob

AU - Sweet, Sarah M.

PY - 2016/11/20

Y1 - 2016/11/20

N2 - Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star formation activity and mass growth. Merger systems have commonly been identified from their disturbed morphologies, and we now can employ integral field spectroscopy to detect and analyze the impact of mergers on stellar kinematics as well. We visually classified galaxy morphology using deep images (μr = 28 mag arcsec- 2 ) taken by the Blanco 4 m telescope at the Cerro Tololo Inter-American Observatory. In this paper we investigate 63 bright (Mr >-19.3) spectroscopically selected galaxies in Abell 119, of which 53 are early type and 20 show a disturbed morphology by visual inspection. A misalignment between the major axes in the photometric image and the kinematic map is conspicuous in morphologically disturbed galaxies. Our sample is dominated by early-type galaxies, yet it shows a surprisingly tight TullyFisher relation except for the morphologically disturbed galaxies which show large deviations. Three out of the eight slow rotators in our sample are morphologically disturbed. The morphologically disturbed galaxies are generally more asymmetric, visually as well as kinematically. Our findings suggest that galaxy interactions, including mergers and perhaps fly-bys, play an important role in determining the orientation and magnitude of a galaxys angular momentum.

AB - Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star formation activity and mass growth. Merger systems have commonly been identified from their disturbed morphologies, and we now can employ integral field spectroscopy to detect and analyze the impact of mergers on stellar kinematics as well. We visually classified galaxy morphology using deep images (μr = 28 mag arcsec- 2 ) taken by the Blanco 4 m telescope at the Cerro Tololo Inter-American Observatory. In this paper we investigate 63 bright (Mr >-19.3) spectroscopically selected galaxies in Abell 119, of which 53 are early type and 20 show a disturbed morphology by visual inspection. A misalignment between the major axes in the photometric image and the kinematic map is conspicuous in morphologically disturbed galaxies. Our sample is dominated by early-type galaxies, yet it shows a surprisingly tight TullyFisher relation except for the morphologically disturbed galaxies which show large deviations. Three out of the eight slow rotators in our sample are morphologically disturbed. The morphologically disturbed galaxies are generally more asymmetric, visually as well as kinematically. Our findings suggest that galaxy interactions, including mergers and perhaps fly-bys, play an important role in determining the orientation and magnitude of a galaxys angular momentum.

KW - catalogs

KW - galaxies: clusters: individual (Abell 119)

KW - galaxies: evolution

KW - galaxies: interactions

KW - galaxies: kinematics and dynamics

UR - http://www.scopus.com/inward/record.url?scp=84996553619&partnerID=8YFLogxK

U2 - 10.3847/0004-637X/832/1/69

DO - 10.3847/0004-637X/832/1/69

M3 - Review article

VL - 832

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 69

ER -