The H α star formation main sequence in cluster and field galaxies at z ∼1.6

Julie Nantais; Gillian Wilson; Adam Muzzin; Lyndsay J. Old; Ricardo Demarco; Pierluigi Cerulo; Michael Balogh; Gregory Rudnick; Jeffrey Chan; M. C. Cooper; Ben Forrest; Brian Hayden; Chris Lidman; Allison Noble; Saul Perlmutter; Carter Rhea; Jason Surace; Remco Van Der Burg; Eelco Van Kampen

doi:10.1093/mnras/staa2872

The H α star formation main sequence in cluster and field galaxies at z ∼1.6

Julie Nantais, Gillian Wilson, Adam Muzzin, Lyndsay J. Old, Ricardo Demarco, Pierluigi Cerulo, Michael Balogh, Gregory Rudnick, Jeffrey Chan, M. C. Cooper, Ben Forrest, Brian Hayden, Chris Lidman, Allison Noble, Saul Perlmutter, Carter Rhea, Jason Surace, Remco Van Der Burg, Eelco Van Kampen

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

9 Scopus citations

Abstract

We calculate H α-based star formation rates and determine the star formation rate-stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼1.6 and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our z ∼1.6 clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram-pressure stripping or harassment.

Original language	English (US)
Pages (from-to)	3061-3070
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	499
Issue number	3
DOIs	https://doi.org/10.1093/mnras/staa2872
State	Published - Dec 1 2020
Externally published	Yes

Keywords

Galaxies: clusters: general
galaxies: evolution

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/mnras/staa2872

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Nantais, J., Wilson, G., Muzzin, A., Old, L. J., Demarco, R., Cerulo, P., Balogh, M., Rudnick, G., Chan, J., Cooper, M. C., Forrest, B., Hayden, B., Lidman, C., Noble, A., Perlmutter, S., Rhea, C., Surace, J., Van Der Burg, R., & Van Kampen, E. (2020). The H α star formation main sequence in cluster and field galaxies at z ∼1.6. Monthly Notices of the Royal Astronomical Society, 499(3), 3061-3070. https://doi.org/10.1093/mnras/staa2872

Nantais, J, Wilson, G, Muzzin, A, Old, LJ, Demarco, R, Cerulo, P, Balogh, M, Rudnick, G, Chan, J, Cooper, MC, Forrest, B, Hayden, B, Lidman, C, Noble, A, Perlmutter, S, Rhea, C, Surace, J, Van Der Burg, R & Van Kampen, E 2020, 'The H α star formation main sequence in cluster and field galaxies at z ∼1.6', Monthly Notices of the Royal Astronomical Society, vol. 499, no. 3, pp. 3061-3070. https://doi.org/10.1093/mnras/staa2872

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abstract = "We calculate H α-based star formation rates and determine the star formation rate-stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼1.6 and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our z ∼1.6 clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram-pressure stripping or harassment.",

keywords = "Galaxies: clusters: general, galaxies: evolution",

author = "Julie Nantais and Gillian Wilson and Adam Muzzin and Old, {Lyndsay J.} and Ricardo Demarco and Pierluigi Cerulo and Michael Balogh and Gregory Rudnick and Jeffrey Chan and Cooper, {M. C.} and Ben Forrest and Brian Hayden and Chris Lidman and Allison Noble and Saul Perlmutter and Carter Rhea and Jason Surace and {Van Der Burg}, Remco and {Van Kampen}, Eelco",

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doi = "10.1093/mnras/staa2872",

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AU - Nantais, Julie

AU - Wilson, Gillian

AU - Muzzin, Adam

AU - Old, Lyndsay J.

AU - Demarco, Ricardo

AU - Cerulo, Pierluigi

AU - Balogh, Michael

AU - Rudnick, Gregory

AU - Chan, Jeffrey

AU - Cooper, M. C.

AU - Forrest, Ben

AU - Hayden, Brian

AU - Lidman, Chris

AU - Noble, Allison

AU - Perlmutter, Saul

AU - Rhea, Carter

AU - Surace, Jason

AU - Van Der Burg, Remco

AU - Van Kampen, Eelco

PY - 2020/12/1

Y1 - 2020/12/1

N2 - We calculate H α-based star formation rates and determine the star formation rate-stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼1.6 and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our z ∼1.6 clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram-pressure stripping or harassment.

AB - We calculate H α-based star formation rates and determine the star formation rate-stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼1.6 and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our z ∼1.6 clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram-pressure stripping or harassment.

KW - Galaxies: clusters: general

KW - galaxies: evolution

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The H α star formation main sequence in cluster and field galaxies at z ∼1.6

Abstract

Keywords

ASJC Scopus subject areas

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