Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups

Maxwell Kuschel; Claudia Scarlata; Vihang Mehta; Harry I. Teplitz; Marc Rafelski; Xin Wang; Ben Sunnquist; Laura Prichard; Norman Grogin; Anton Koekemoer; Rogier Windhorst; Michael Rutkowski; Anahita Alavi; Nima Chartab; Christopher J. Conselice; Y. Sophia Dai; Eric Gawiser; Mauro Giavalisco; Pablo Arrabal Haro; Nimish Hathi; Rolf A. Jansen; Zhiyuan Ji; Ray A. Lucas; Kameswara Mantha; Bahram Mobasher; Robert W. O’Connell; Brant Robertson; Zahra Sattari; L. Y.Aaron Yung; Romeel Davé; Duilia DeMello; Mark Dickinson; Henry Ferguson; Steven L. Finkelstein; Matt Hayes; Justin Howell; Sugata Kaviraj; John W. Mackenty; Brian Siana

doi:10.3847/1538-4357/acacfd

Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups

Maxwell Kuschel, Claudia Scarlata, Vihang Mehta, Harry I. Teplitz, Marc Rafelski, Xin Wang, Ben Sunnquist, Laura Prichard, Norman Grogin, Anton Koekemoer, Rogier Windhorst, Michael Rutkowski, Anahita Alavi, Nima Chartab, Christopher J. Conselice, Y. Sophia Dai, Eric Gawiser, Mauro Giavalisco, Pablo Arrabal Haro, Nimish HathiRolf A. Jansen, Zhiyuan Ji, Ray A. Lucas, Kameswara Mantha, Bahram Mobasher, Robert W. O’Connell, Brant Robertson, Zahra Sattari, L. Y.Aaron Yung, Romeel Davé, Duilia DeMello, Mark Dickinson, Henry Ferguson, Steven L. Finkelstein, Matt Hayes, Justin Howell, Sugata Kaviraj, John W. Mackenty, Brian Siana

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Abstract

We explore how the fraction of quenched galaxies changes in groups of galaxies with respect to the distance to the center of the group, redshift, and stellar mass to determine the dominant process of environmental quenching in 0.2 < z < 0.8 groups. We use new UV data from the UVCANDELS project in addition to existing multiband photometry to derive new galaxy physical properties of the group galaxies from the zCOSMOS 20 k group catalog. Limiting our analysis to a complete sample of log (M _*/M _⊙) > 10.56 group galaxies, we find that the probability of being quenched increases slowly with decreasing redshift, diverging from the stagnant field galaxy population. A corresponding analysis on how the probability of being quenched increases with time within groups suggests that the dominant environmental quenching process is characterized by slow (∼Gyr) timescales. We find a quenching time of approximately 4.91 − 1.47 + 0.91 Gyr, consistent with the slow processes of strangulation and delayed-then-rapid quenching although more data are needed to confirm this result.

Original language	English (US)
Article number	17
Journal	Astrophysical Journal
Volume	947
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/acacfd
State	Published - Apr 1 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023. The Author(s). Published by the American Astronomical Society.

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Kuschel, M., Scarlata, C., Mehta, V., Teplitz, H. I., Rafelski, M., Wang, X., Sunnquist, B., Prichard, L., Grogin, N., Koekemoer, A., Windhorst, R., Rutkowski, M., Alavi, A., Chartab, N., Conselice, C. J., Dai, Y. S., Gawiser, E., Giavalisco, M., Haro, P. A., ... Siana, B. (2023). Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups. Astrophysical Journal, 947(1), Article 17. https://doi.org/10.3847/1538-4357/acacfd

Kuschel, M, Scarlata, C, Mehta, V, Teplitz, HI, Rafelski, M, Wang, X, Sunnquist, B, Prichard, L, Grogin, N, Koekemoer, A, Windhorst, R, Rutkowski, M, Alavi, A, Chartab, N, Conselice, CJ, Dai, YS, Gawiser, E, Giavalisco, M, Haro, PA, Hathi, N, Jansen, RA, Ji, Z, Lucas, RA, Mantha, K, Mobasher, B, O’Connell, RW, Robertson, B, Sattari, Z, Yung, LYA, Davé, R, DeMello, D, Dickinson, M, Ferguson, H, Finkelstein, SL, Hayes, M, Howell, J, Kaviraj, S, Mackenty, JW & Siana, B 2023, 'Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups', Astrophysical Journal, vol. 947, no. 1, 17. https://doi.org/10.3847/1538-4357/acacfd

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title = "Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups",

abstract = "We explore how the fraction of quenched galaxies changes in groups of galaxies with respect to the distance to the center of the group, redshift, and stellar mass to determine the dominant process of environmental quenching in 0.2 < z < 0.8 groups. We use new UV data from the UVCANDELS project in addition to existing multiband photometry to derive new galaxy physical properties of the group galaxies from the zCOSMOS 20 k group catalog. Limiting our analysis to a complete sample of log (M */M ⊙) > 10.56 group galaxies, we find that the probability of being quenched increases slowly with decreasing redshift, diverging from the stagnant field galaxy population. A corresponding analysis on how the probability of being quenched increases with time within groups suggests that the dominant environmental quenching process is characterized by slow (∼Gyr) timescales. We find a quenching time of approximately 4.91 − 1.47 + 0.91 Gyr, consistent with the slow processes of strangulation and delayed-then-rapid quenching although more data are needed to confirm this result.",

author = "Maxwell Kuschel and Claudia Scarlata and Vihang Mehta and Teplitz, {Harry I.} and Marc Rafelski and Xin Wang and Ben Sunnquist and Laura Prichard and Norman Grogin and Anton Koekemoer and Rogier Windhorst and Michael Rutkowski and Anahita Alavi and Nima Chartab and Conselice, {Christopher J.} and Dai, {Y. Sophia} and Eric Gawiser and Mauro Giavalisco and Haro, {Pablo Arrabal} and Nimish Hathi and Jansen, {Rolf A.} and Zhiyuan Ji and Lucas, {Ray A.} and Kameswara Mantha and Bahram Mobasher and O{\textquoteright}Connell, {Robert W.} and Brant Robertson and Zahra Sattari and Yung, {L. Y.Aaron} and Romeel Dav{\'e} and Duilia DeMello and Mark Dickinson and Henry Ferguson and Finkelstein, {Steven L.} and Matt Hayes and Justin Howell and Sugata Kaviraj and Mackenty, {John W.} and Brian Siana",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

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AU - Kuschel, Maxwell

AU - Scarlata, Claudia

AU - Mehta, Vihang

AU - Teplitz, Harry I.

AU - Rafelski, Marc

AU - Wang, Xin

AU - Sunnquist, Ben

AU - Prichard, Laura

AU - Grogin, Norman

AU - Koekemoer, Anton

AU - Windhorst, Rogier

AU - Rutkowski, Michael

AU - Alavi, Anahita

AU - Chartab, Nima

AU - Conselice, Christopher J.

AU - Dai, Y. Sophia

AU - Gawiser, Eric

AU - Giavalisco, Mauro

AU - Haro, Pablo Arrabal

AU - Hathi, Nimish

AU - Jansen, Rolf A.

AU - Ji, Zhiyuan

AU - Lucas, Ray A.

AU - Mantha, Kameswara

AU - Mobasher, Bahram

AU - O’Connell, Robert W.

AU - Robertson, Brant

AU - Sattari, Zahra

AU - Yung, L. Y.Aaron

AU - Davé, Romeel

AU - DeMello, Duilia

AU - Dickinson, Mark

AU - Ferguson, Henry

AU - Finkelstein, Steven L.

AU - Hayes, Matt

AU - Howell, Justin

AU - Kaviraj, Sugata

AU - Mackenty, John W.

AU - Siana, Brian

PY - 2023/4/1

Y1 - 2023/4/1

N2 - We explore how the fraction of quenched galaxies changes in groups of galaxies with respect to the distance to the center of the group, redshift, and stellar mass to determine the dominant process of environmental quenching in 0.2 < z < 0.8 groups. We use new UV data from the UVCANDELS project in addition to existing multiband photometry to derive new galaxy physical properties of the group galaxies from the zCOSMOS 20 k group catalog. Limiting our analysis to a complete sample of log (M */M ⊙) > 10.56 group galaxies, we find that the probability of being quenched increases slowly with decreasing redshift, diverging from the stagnant field galaxy population. A corresponding analysis on how the probability of being quenched increases with time within groups suggests that the dominant environmental quenching process is characterized by slow (∼Gyr) timescales. We find a quenching time of approximately 4.91 − 1.47 + 0.91 Gyr, consistent with the slow processes of strangulation and delayed-then-rapid quenching although more data are needed to confirm this result.

AB - We explore how the fraction of quenched galaxies changes in groups of galaxies with respect to the distance to the center of the group, redshift, and stellar mass to determine the dominant process of environmental quenching in 0.2 < z < 0.8 groups. We use new UV data from the UVCANDELS project in addition to existing multiband photometry to derive new galaxy physical properties of the group galaxies from the zCOSMOS 20 k group catalog. Limiting our analysis to a complete sample of log (M */M ⊙) > 10.56 group galaxies, we find that the probability of being quenched increases slowly with decreasing redshift, diverging from the stagnant field galaxy population. A corresponding analysis on how the probability of being quenched increases with time within groups suggests that the dominant environmental quenching process is characterized by slow (∼Gyr) timescales. We find a quenching time of approximately 4.91 − 1.47 + 0.91 Gyr, consistent with the slow processes of strangulation and delayed-then-rapid quenching although more data are needed to confirm this result.

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JO - Astrophysical Journal

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ER -

Investigating the Dominant Environmental Quenching Process in UVCANDELS/COSMOS Groups

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