The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample

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

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The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample. / Setton, David J.; Verrico, Margaret; Bezanson, Rachel; Greene, Jenny E.; Suess, Katherine A.; Goulding, Andy D.; Spilker, Justin S.; Kriek, Mariska; Feldmann, Robert; Narayanan, Desika; Hall-Hooper, Khalil; Kado-Fong, Erin.

In: Astrophysical Journal, Vol. 931, No. 1, 51, 01.05.2022.

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

Harvard

Setton, DJ, Verrico, M, Bezanson, R, Greene, JE, Suess, KA, Goulding, AD, Spilker, JS, Kriek, M, Feldmann, R, Narayanan, D, Hall-Hooper, K & Kado-Fong, E 2022, 'The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample', Astrophysical Journal, vol. 931, no. 1, 51. https://doi.org/10.3847/1538-4357/ac6096

APA

Setton, D. J., Verrico, M., Bezanson, R., Greene, J. E., Suess, K. A., Goulding, A. D., Spilker, J. S., Kriek, M., Feldmann, R., Narayanan, D., Hall-Hooper, K., & Kado-Fong, E. (2022). The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample. Astrophysical Journal, 931(1), [51]. https://doi.org/10.3847/1538-4357/ac6096

Vancouver

Setton DJ, Verrico M, Bezanson R, Greene JE, Suess KA, Goulding AD et al. The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample. Astrophysical Journal. 2022 May 1;931(1). 51. https://doi.org/10.3847/1538-4357/ac6096

Author

Setton, David J. ; Verrico, Margaret ; Bezanson, Rachel ; Greene, Jenny E. ; Suess, Katherine A. ; Goulding, Andy D. ; Spilker, Justin S. ; Kriek, Mariska ; Feldmann, Robert ; Narayanan, Desika ; Hall-Hooper, Khalil ; Kado-Fong, Erin. / The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample. In: Astrophysical Journal. 2022 ; Vol. 931, No. 1.

Bibtex

@article{587aa423bbac4be0ab572ba18b8ce6e1,
title = "The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample",
abstract = "We present structural measurements of 145 spectroscopically selected intermediate-redshift (z similar to 0.7), massive (M-star similar to 10(11) M (circle dot)) post-starburst galaxies from the SQuIGG (L) over right arrowE i-band imaging. This deep imaging allows us to probe the sizes and structures of these galaxies, which we compare to a control sample of star-forming and quiescent galaxies drawn from the LEGA-C Survey. We find that post-starburst galaxies systematically lie similar to 0.1 dex below the quiescent mass-size (half-light radius) relation, with a scatter of similar to 0.2 dex. This finding is bolstered by nonparametric measures, such as the Gini coefficient and the concentration, which also reveal these galaxies to have more compact light profiles than both quiescent and star-forming populations at similar mass and redshift. The sizes of post-starburst galaxies show either negative or no correlation with the time since quenching, such that more recently quenched galaxies are larger or similarly sized. This empirical finding disfavors the formation of post-starburst galaxies via a purely central burst of star formation that simultaneously shrinks the galaxy and shuts off star formation. We show that the central densities of post-starburst and quiescent galaxies at this epoch are very similar, in contrast with their effective radii. The structural properties of z similar to 0.7 post-starburst galaxies match those of quiescent galaxies that formed in the early universe, suggesting that rapid quenching in the present epoch is driven by a similar mechanism to the one at high redshift.",
keywords = "STELLAR POPULATION SYNTHESIS, UBIQUITOUS MOLECULAR OUTFLOWS, ACTIVE GALACTIC NUCLEI, STAR-FORMATION, QUIESCENT GALAXY, BLACK-HOLES, POSTSTARBURST GALAXIES, SPECTROSCOPIC SURVEY, PHYSICAL-PROPERTIES, E+A GALAXIES",
author = "Setton, {David J.} and Margaret Verrico 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 Khalil Hall-Hooper and Erin Kado-Fong",
year = "2022",
month = may,
day = "1",
doi = "10.3847/1538-4357/ac6096",
language = "English",
volume = "931",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "1",

}

RIS

TY - JOUR

T1 - The Compact Structures of Massive z similar to 0.7 Post-starburst Galaxies in the SQuIGG(L)over-right-arrowE Sample

AU - Setton, David J.

AU - Verrico, Margaret

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 - Hall-Hooper, Khalil

AU - Kado-Fong, Erin

PY - 2022/5/1

Y1 - 2022/5/1

N2 - We present structural measurements of 145 spectroscopically selected intermediate-redshift (z similar to 0.7), massive (M-star similar to 10(11) M (circle dot)) post-starburst galaxies from the SQuIGG (L) over right arrowE i-band imaging. This deep imaging allows us to probe the sizes and structures of these galaxies, which we compare to a control sample of star-forming and quiescent galaxies drawn from the LEGA-C Survey. We find that post-starburst galaxies systematically lie similar to 0.1 dex below the quiescent mass-size (half-light radius) relation, with a scatter of similar to 0.2 dex. This finding is bolstered by nonparametric measures, such as the Gini coefficient and the concentration, which also reveal these galaxies to have more compact light profiles than both quiescent and star-forming populations at similar mass and redshift. The sizes of post-starburst galaxies show either negative or no correlation with the time since quenching, such that more recently quenched galaxies are larger or similarly sized. This empirical finding disfavors the formation of post-starburst galaxies via a purely central burst of star formation that simultaneously shrinks the galaxy and shuts off star formation. We show that the central densities of post-starburst and quiescent galaxies at this epoch are very similar, in contrast with their effective radii. The structural properties of z similar to 0.7 post-starburst galaxies match those of quiescent galaxies that formed in the early universe, suggesting that rapid quenching in the present epoch is driven by a similar mechanism to the one at high redshift.

AB - We present structural measurements of 145 spectroscopically selected intermediate-redshift (z similar to 0.7), massive (M-star similar to 10(11) M (circle dot)) post-starburst galaxies from the SQuIGG (L) over right arrowE i-band imaging. This deep imaging allows us to probe the sizes and structures of these galaxies, which we compare to a control sample of star-forming and quiescent galaxies drawn from the LEGA-C Survey. We find that post-starburst galaxies systematically lie similar to 0.1 dex below the quiescent mass-size (half-light radius) relation, with a scatter of similar to 0.2 dex. This finding is bolstered by nonparametric measures, such as the Gini coefficient and the concentration, which also reveal these galaxies to have more compact light profiles than both quiescent and star-forming populations at similar mass and redshift. The sizes of post-starburst galaxies show either negative or no correlation with the time since quenching, such that more recently quenched galaxies are larger or similarly sized. This empirical finding disfavors the formation of post-starburst galaxies via a purely central burst of star formation that simultaneously shrinks the galaxy and shuts off star formation. We show that the central densities of post-starburst and quiescent galaxies at this epoch are very similar, in contrast with their effective radii. The structural properties of z similar to 0.7 post-starburst galaxies match those of quiescent galaxies that formed in the early universe, suggesting that rapid quenching in the present epoch is driven by a similar mechanism to the one at high redshift.

KW - STELLAR POPULATION SYNTHESIS

KW - UBIQUITOUS MOLECULAR OUTFLOWS

KW - ACTIVE GALACTIC NUCLEI

KW - STAR-FORMATION

KW - QUIESCENT GALAXY

KW - BLACK-HOLES

KW - POSTSTARBURST GALAXIES

KW - SPECTROSCOPIC SURVEY

KW - PHYSICAL-PROPERTIES

KW - E+A GALAXIES

U2 - 10.3847/1538-4357/ac6096

DO - 10.3847/1538-4357/ac6096

M3 - Journal article

VL - 931

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 51

ER -

ID: 315765702