Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7. / Verrico, Margaret E.; Setton, David J.; Bezanson, Rachel; Greene, Jenny E.; Suess, Katherine A.; Goulding, Andy D.; Spilker, Justin S.; Kriek, Mariska; Feldmann, Robert; Narayanan, Desika; Donofrio, Vincenzo; Khullar, Gourav.

In: Astrophysical Journal, Vol. 949, No. 1, 5, 01.05.2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Verrico, ME, Setton, DJ, Bezanson, R, Greene, JE, Suess, KA, Goulding, AD, Spilker, JS, Kriek, M, Feldmann, R, Narayanan, D, Donofrio, V & Khullar, G 2023, 'Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7', Astrophysical Journal, vol. 949, no. 1, 5. https://doi.org/10.3847/1538-4357/acc38b

APA

Verrico, M. E., Setton, D. J., Bezanson, R., Greene, J. E., Suess, K. A., Goulding, A. D., Spilker, J. S., Kriek, M., Feldmann, R., Narayanan, D., Donofrio, V., & Khullar, G. (2023). Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7. Astrophysical Journal, 949(1), [5]. https://doi.org/10.3847/1538-4357/acc38b

Vancouver

Verrico ME, Setton DJ, Bezanson R, Greene JE, Suess KA, Goulding AD et al. Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7. Astrophysical Journal. 2023 May 1;949(1). 5. https://doi.org/10.3847/1538-4357/acc38b

Author

Verrico, Margaret E. ; Setton, David J. ; Bezanson, Rachel ; Greene, Jenny E. ; Suess, Katherine A. ; Goulding, Andy D. ; Spilker, Justin S. ; Kriek, Mariska ; Feldmann, Robert ; Narayanan, Desika ; Donofrio, Vincenzo ; Khullar, Gourav. / Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7. In: Astrophysical Journal. 2023 ; Vol. 949, No. 1.

Bibtex

@article{2d895b97b23f4e85a6c43ea5f9c5b05a,
title = "Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7",
abstract = "We present visual classifications of merger-induced tidal disturbances in 143 M-* similar to 10(11)M(circle dot) post-starburst galaxies at z similar to 0.7 identified in the. SQuIGG (L) over right arrowE Sample. This sample spectroscopically selects galaxies from the Sloan Digital Sky Survey that have stopped their primary epoch of star formation within the past similar to 500 Myr. Visual classifications are performed on Hyper Suprime-Cam imaging. We compare to a control sample of mass- and redshift-matched star-forming and quiescent galaxies from the Large Early Galaxy Census and find that post-starburst galaxies are more likely to be classified as disturbed than either category. This corresponds to a factor of 3.6(-1.3)(+2.9) times the disturbance rate of older quiescent galaxies and 2.1(-.73)(+1.9) times the disturbance rate of star-forming galaxies. Assuming tidal features persist for less than or similar to 500 Myr, this suggests merging is coincident with quenching in a significant fraction of these post-starbursts. Galaxies with tidal disturbances are younger on average than undisturbed post-starburst galaxies in our sample, suggesting tidal features from a major merger may have faded over time. This may be exacerbated by the fact that, on average, the undisturbed subset is fainter, rendering low- surface-brightness tidal features harder to identify. However, the presence of 10 young (less than or similar to 150 Myr since quenching) undisturbed galaxies suggests that major mergers are not the only fast physical mechanism that shut down the primary epoch of star formation in massive galaxies at intermediate redshift.",
keywords = "POST-STARBURST GALAXIES, STAR-FORMATION HISTORIES, DIGITAL SKY SURVEY, ACTIVE GALACTIC NUCLEI, QUIESCENT GALAXIES, DATA RELEASE, E PLUS, SPECTROSCOPIC SURVEY, MOLECULAR GAS, E+A GALAXIES",
author = "Verrico, {Margaret E.} and Setton, {David J.} and Rachel Bezanson and Greene, {Jenny E.} and Suess, {Katherine A.} and Goulding, {Andy D.} and Spilker, {Justin S.} and Mariska Kriek and Robert Feldmann and Desika Narayanan and Vincenzo Donofrio and Gourav Khullar",
year = "2023",
month = may,
day = "1",
doi = "10.3847/1538-4357/acc38b",
language = "English",
volume = "949",
journal = "Astrophysical Journal",
issn = "0067-0049",
publisher = "Institute of Physics Publishing, Inc",
number = "1",

}

RIS

TY - JOUR

T1 - Merger Signatures are Common, but not Universal, in Massive, Recently Quenched Galaxies at z similar to 0.7

AU - Verrico, Margaret E.

AU - Setton, David J.

AU - Bezanson, Rachel

AU - Greene, Jenny E.

AU - Suess, Katherine A.

AU - Goulding, Andy D.

AU - Spilker, Justin S.

AU - Kriek, Mariska

AU - Feldmann, Robert

AU - Narayanan, Desika

AU - Donofrio, Vincenzo

AU - Khullar, Gourav

PY - 2023/5/1

Y1 - 2023/5/1

N2 - We present visual classifications of merger-induced tidal disturbances in 143 M-* similar to 10(11)M(circle dot) post-starburst galaxies at z similar to 0.7 identified in the. SQuIGG (L) over right arrowE Sample. This sample spectroscopically selects galaxies from the Sloan Digital Sky Survey that have stopped their primary epoch of star formation within the past similar to 500 Myr. Visual classifications are performed on Hyper Suprime-Cam imaging. We compare to a control sample of mass- and redshift-matched star-forming and quiescent galaxies from the Large Early Galaxy Census and find that post-starburst galaxies are more likely to be classified as disturbed than either category. This corresponds to a factor of 3.6(-1.3)(+2.9) times the disturbance rate of older quiescent galaxies and 2.1(-.73)(+1.9) times the disturbance rate of star-forming galaxies. Assuming tidal features persist for less than or similar to 500 Myr, this suggests merging is coincident with quenching in a significant fraction of these post-starbursts. Galaxies with tidal disturbances are younger on average than undisturbed post-starburst galaxies in our sample, suggesting tidal features from a major merger may have faded over time. This may be exacerbated by the fact that, on average, the undisturbed subset is fainter, rendering low- surface-brightness tidal features harder to identify. However, the presence of 10 young (less than or similar to 150 Myr since quenching) undisturbed galaxies suggests that major mergers are not the only fast physical mechanism that shut down the primary epoch of star formation in massive galaxies at intermediate redshift.

AB - We present visual classifications of merger-induced tidal disturbances in 143 M-* similar to 10(11)M(circle dot) post-starburst galaxies at z similar to 0.7 identified in the. SQuIGG (L) over right arrowE Sample. This sample spectroscopically selects galaxies from the Sloan Digital Sky Survey that have stopped their primary epoch of star formation within the past similar to 500 Myr. Visual classifications are performed on Hyper Suprime-Cam imaging. We compare to a control sample of mass- and redshift-matched star-forming and quiescent galaxies from the Large Early Galaxy Census and find that post-starburst galaxies are more likely to be classified as disturbed than either category. This corresponds to a factor of 3.6(-1.3)(+2.9) times the disturbance rate of older quiescent galaxies and 2.1(-.73)(+1.9) times the disturbance rate of star-forming galaxies. Assuming tidal features persist for less than or similar to 500 Myr, this suggests merging is coincident with quenching in a significant fraction of these post-starbursts. Galaxies with tidal disturbances are younger on average than undisturbed post-starburst galaxies in our sample, suggesting tidal features from a major merger may have faded over time. This may be exacerbated by the fact that, on average, the undisturbed subset is fainter, rendering low- surface-brightness tidal features harder to identify. However, the presence of 10 young (less than or similar to 150 Myr since quenching) undisturbed galaxies suggests that major mergers are not the only fast physical mechanism that shut down the primary epoch of star formation in massive galaxies at intermediate redshift.

KW - POST-STARBURST GALAXIES

KW - STAR-FORMATION HISTORIES

KW - DIGITAL SKY SURVEY

KW - ACTIVE GALACTIC NUCLEI

KW - QUIESCENT GALAXIES

KW - DATA RELEASE

KW - E PLUS

KW - SPECTROSCOPIC SURVEY

KW - MOLECULAR GAS

KW - E+A GALAXIES

U2 - 10.3847/1538-4357/acc38b

DO - 10.3847/1538-4357/acc38b

M3 - Journal article

VL - 949

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0067-0049

IS - 1

M1 - 5

ER -

ID: 347756351