The University of Southampton
University of Southampton Institutional Repository

Baryon content in a sample of 91 galaxy clusters selected by the South Pole Telescope at 0.2 < z < 1.25

Baryon content in a sample of 91 galaxy clusters selected by the South Pole Telescope at 0.2 < z < 1.25
Baryon content in a sample of 91 galaxy clusters selected by the South Pole Telescope at 0.2 < z < 1.25

We estimate total mass (M 500 ), intracluster medium (ICM) mass (M ICM ), and stellar mass (M*) in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 galaxy clusters with masses M 500 ≳ 2.5 × 10 14 M and redshift 0.2 < z < 1.25 from the 2500 deg 2 South Pole Telescope SPT-SZ survey. The totalmassesM 500 are estimated from the SZE observable, the ICMmasses M ICM are obtained from the analysis of Chandra X-ray observations, and the stellar massesM* are derived by fitting spectral energy distribution templates to Dark Energy Survey griz optical photometry and WISE or Spitzer near-infrared photometry. We study trends in the stellar mass, the ICM mass, the total baryonic mass, and the cold baryonic fraction with cluster halo mass and redshift. We find significant departures from self-similarity in the mass scaling for all quantities, while the redshift trends are all statistically consistent with zero, indicating that the baryon content of clusters at fixed mass has changed remarkably little over the past ≈9 Gyr. We compare our results to the mean baryon fraction (and the stellar mass fraction) in the field, finding that these values lie above (below) those in cluster virial regions in all but the most massive clusters at low redshift. Using a simple model of the matter assembly of clusters from infalling groups with lower masses and from infalling material from the low-density environment or field surrounding the parent haloes, we show that the measured mass trends without strong redshift trends in the stellar mass scaling relation could be explained by a mass and redshift dependent fractional contribution from field material. Similar analyses of the ICM and baryon mass scaling relations provide evidence for the so-called 'missing baryons' outside cluster virial regions.

Galaxies: clusters: general, Galaxies: clusters: individual, Galaxies: clusters: intracluster medium
0035-8711
3072-3099
Chiu, I.
612f6809-a35a-48e3-b3ef-64054cd5fb3e
Mohr, J.J.
48ae5d2c-c6fb-4092-9f70-41c80f698523
McDonald, M.
8da567a2-bd1c-4501-a546-13a9f41a10d9
Bocquet, S.
8a92384f-6e1b-47ac-ba89-a843b73d434b
Desai, S.
9fb3d948-7af8-43e1-8c9c-a11b6cc376ce
Klein, M.
59f234b1-5c39-442b-9cda-4d241b0c5ba8
Israel, H.
750f8079-89b8-4ec7-9dab-bf61e28754b0
Ashby, M.L.N.
e31bcabf-53a5-4cec-affe-4d557efa78ef
Stanford, A.
8dd2f478-921e-40d8-a194-cc2b7114859b
Benson, B.A.
16b0a6c9-c65f-45cf-b75c-e8f6a625c6cb
Brodwin, M.
960e30a7-f6e3-4e1d-a6ea-ba73bbc3a67f
Abbott, T. M.C.
6afa6308-fd36-4189-aef0-d86c784311d9
Abdalla, F.B.
b32ec665-df5e-4703-9eef-a9b15ea7cf08
Allam, S.
ddcc4444-2731-4ed7-b2f0-10dc1b54fa8c
Annis, J.
b21af104-dcad-472a-8424-b49d41d41c06
Bayliss, M.
2d06c596-972c-4564-93f8-184b2c2ff43b
Benoit-Lévy, A.
eea5849b-ea03-4147-8c3b-61255cbb30eb
Bertin, E.
a63c032a-585e-4a22-88be-42054701d901
Bleem, L.
cf629cea-1f51-468b-9ad3-cdd19ffd0fb2
Brooks, D.
4e6fdec5-14bb-4e8e-805f-ef09976328c4
Buckley-Geer, E.
ad57a7c9-6dbf-4b3d-a69f-d6cc5bb4fb8a
Bulbul, E.
e3c99746-39bf-4c61-825c-33bda42d3b02
Capasso, R.
ec6649fd-f24f-431e-ba9d-65d22c4e8b84
Carlstrom, J.E.
2de6ba83-3294-4c5c-9414-2ed49b9725a2
Carnero Rosell, A.
d66191ef-a014-4029-bfe8-e9b3c653e3be
Carretero, J.
081b0f5d-7e69-469c-a22d-5b851f9b8d1d
Castander, F.J.
b61356c2-f7f5-4da7-9322-b9eda0b0081a
Cunha, C.E.
3cd56b9f-063e-486d-89d1-968da6ad2c4f
D'Andrea, C.B.
4befc380-f47c-49cc-a84e-2e2d2ac14edd
da Costa, L.N.
b1ed9fd9-b99a-4012-8112-79cba46d8a23
Davis, C.
b98148c3-cb02-4943-91a4-7ae0a23c681e
Diehl, H.T.
cf996f45-85cd-43df-b621-3032f9527150
Dietrich, J.P.
3eb1ee1f-9bd5-47c7-b116-85c6365becc1
Doel, P.
00d69910-6075-4a52-9c7b-57e947a3b171
Drlica-Wagner, A.
d47129ae-3b89-4fca-bab4-8b4019b1da05
Eifler, T.F.
0ef93d51-0f94-46cb-b882-a569b9a6b598
Evrard, A.E.
b72fc85a-1ab1-4c95-afad-e1ff76f8190c
Flaugher, B.
cca72cda-37e5-4d1b-a792-c11946615fb5
García-Bellido, J.
1b3dcb65-d8cf-45a4-8d05-b1b0735ba442
Garmire, G.
0f25d446-dbe9-41bf-8f97-2fde21559a2a
Gaztanaga, E.
5a1b3932-ad3a-4f49-a171-7d50c5363194
Gerdes, D.W.
63df801a-6703-4911-902c-1115327d79dd
Gupta, N.
bf5f5d50-ea55-4ef0-947b-ac8d73ee1072
Marshall, J.L.
8d222c87-8052-4a56-89c2-8ac646e698bb
Murray, S.
cfc6be72-9c06-485c-b359-106b3ea3239d
Sanchez, E.
dc3da870-62fd-4c14-ae4f-d788326c6eca
Smith, R.C.
d6f5a30a-4c79-40a8-b2ba-6879b4e8f184
Smith, M.
8bdc74e1-a37b-434d-ae75-82763109bf7a
Walker, A.R.
fe87589a-fe33-42d5-884b-8dd7aebc1fe3
Zhang, Y.
ebe97d78-fdbc-4b82-8caa-bed623e0dc85
Chiu, I.
612f6809-a35a-48e3-b3ef-64054cd5fb3e
Mohr, J.J.
48ae5d2c-c6fb-4092-9f70-41c80f698523
McDonald, M.
8da567a2-bd1c-4501-a546-13a9f41a10d9
Bocquet, S.
8a92384f-6e1b-47ac-ba89-a843b73d434b
Desai, S.
9fb3d948-7af8-43e1-8c9c-a11b6cc376ce
Klein, M.
59f234b1-5c39-442b-9cda-4d241b0c5ba8
Israel, H.
750f8079-89b8-4ec7-9dab-bf61e28754b0
Ashby, M.L.N.
e31bcabf-53a5-4cec-affe-4d557efa78ef
Stanford, A.
8dd2f478-921e-40d8-a194-cc2b7114859b
Benson, B.A.
16b0a6c9-c65f-45cf-b75c-e8f6a625c6cb
Brodwin, M.
960e30a7-f6e3-4e1d-a6ea-ba73bbc3a67f
Abbott, T. M.C.
6afa6308-fd36-4189-aef0-d86c784311d9
Abdalla, F.B.
b32ec665-df5e-4703-9eef-a9b15ea7cf08
Allam, S.
ddcc4444-2731-4ed7-b2f0-10dc1b54fa8c
Annis, J.
b21af104-dcad-472a-8424-b49d41d41c06
Bayliss, M.
2d06c596-972c-4564-93f8-184b2c2ff43b
Benoit-Lévy, A.
eea5849b-ea03-4147-8c3b-61255cbb30eb
Bertin, E.
a63c032a-585e-4a22-88be-42054701d901
Bleem, L.
cf629cea-1f51-468b-9ad3-cdd19ffd0fb2
Brooks, D.
4e6fdec5-14bb-4e8e-805f-ef09976328c4
Buckley-Geer, E.
ad57a7c9-6dbf-4b3d-a69f-d6cc5bb4fb8a
Bulbul, E.
e3c99746-39bf-4c61-825c-33bda42d3b02
Capasso, R.
ec6649fd-f24f-431e-ba9d-65d22c4e8b84
Carlstrom, J.E.
2de6ba83-3294-4c5c-9414-2ed49b9725a2
Carnero Rosell, A.
d66191ef-a014-4029-bfe8-e9b3c653e3be
Carretero, J.
081b0f5d-7e69-469c-a22d-5b851f9b8d1d
Castander, F.J.
b61356c2-f7f5-4da7-9322-b9eda0b0081a
Cunha, C.E.
3cd56b9f-063e-486d-89d1-968da6ad2c4f
D'Andrea, C.B.
4befc380-f47c-49cc-a84e-2e2d2ac14edd
da Costa, L.N.
b1ed9fd9-b99a-4012-8112-79cba46d8a23
Davis, C.
b98148c3-cb02-4943-91a4-7ae0a23c681e
Diehl, H.T.
cf996f45-85cd-43df-b621-3032f9527150
Dietrich, J.P.
3eb1ee1f-9bd5-47c7-b116-85c6365becc1
Doel, P.
00d69910-6075-4a52-9c7b-57e947a3b171
Drlica-Wagner, A.
d47129ae-3b89-4fca-bab4-8b4019b1da05
Eifler, T.F.
0ef93d51-0f94-46cb-b882-a569b9a6b598
Evrard, A.E.
b72fc85a-1ab1-4c95-afad-e1ff76f8190c
Flaugher, B.
cca72cda-37e5-4d1b-a792-c11946615fb5
García-Bellido, J.
1b3dcb65-d8cf-45a4-8d05-b1b0735ba442
Garmire, G.
0f25d446-dbe9-41bf-8f97-2fde21559a2a
Gaztanaga, E.
5a1b3932-ad3a-4f49-a171-7d50c5363194
Gerdes, D.W.
63df801a-6703-4911-902c-1115327d79dd
Gupta, N.
bf5f5d50-ea55-4ef0-947b-ac8d73ee1072
Marshall, J.L.
8d222c87-8052-4a56-89c2-8ac646e698bb
Murray, S.
cfc6be72-9c06-485c-b359-106b3ea3239d
Sanchez, E.
dc3da870-62fd-4c14-ae4f-d788326c6eca
Smith, R.C.
d6f5a30a-4c79-40a8-b2ba-6879b4e8f184
Smith, M.
8bdc74e1-a37b-434d-ae75-82763109bf7a
Walker, A.R.
fe87589a-fe33-42d5-884b-8dd7aebc1fe3
Zhang, Y.
ebe97d78-fdbc-4b82-8caa-bed623e0dc85

Chiu, I., Mohr, J.J., McDonald, M., Bocquet, S., Desai, S., Klein, M., Israel, H., Ashby, M.L.N., Stanford, A., Benson, B.A., Brodwin, M., Abbott, T. M.C., Abdalla, F.B., Allam, S., Annis, J., Bayliss, M., Benoit-Lévy, A., Bertin, E., Bleem, L., Brooks, D., Buckley-Geer, E., Bulbul, E., Capasso, R., Carlstrom, J.E., Carnero Rosell, A., Carretero, J., Castander, F.J., Cunha, C.E., D'Andrea, C.B., da Costa, L.N., Davis, C., Diehl, H.T., Dietrich, J.P., Doel, P., Drlica-Wagner, A., Eifler, T.F., Evrard, A.E., Flaugher, B., García-Bellido, J., Garmire, G., Gaztanaga, E., Gerdes, D.W., Gupta, N., Marshall, J.L., Murray, S., Sanchez, E., Smith, R.C., Smith, M., Walker, A.R. and Zhang, Y. (2018) Baryon content in a sample of 91 galaxy clusters selected by the South Pole Telescope at 0.2 < z < 1.25. Monthly Notices of the Royal Astronomical Society, 478 (3), 3072-3099. (doi:10.1093/MNRAS/STY1284).

Record type: Article

Abstract

We estimate total mass (M 500 ), intracluster medium (ICM) mass (M ICM ), and stellar mass (M*) in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 galaxy clusters with masses M 500 ≳ 2.5 × 10 14 M and redshift 0.2 < z < 1.25 from the 2500 deg 2 South Pole Telescope SPT-SZ survey. The totalmassesM 500 are estimated from the SZE observable, the ICMmasses M ICM are obtained from the analysis of Chandra X-ray observations, and the stellar massesM* are derived by fitting spectral energy distribution templates to Dark Energy Survey griz optical photometry and WISE or Spitzer near-infrared photometry. We study trends in the stellar mass, the ICM mass, the total baryonic mass, and the cold baryonic fraction with cluster halo mass and redshift. We find significant departures from self-similarity in the mass scaling for all quantities, while the redshift trends are all statistically consistent with zero, indicating that the baryon content of clusters at fixed mass has changed remarkably little over the past ≈9 Gyr. We compare our results to the mean baryon fraction (and the stellar mass fraction) in the field, finding that these values lie above (below) those in cluster virial regions in all but the most massive clusters at low redshift. Using a simple model of the matter assembly of clusters from infalling groups with lower masses and from infalling material from the low-density environment or field surrounding the parent haloes, we show that the measured mass trends without strong redshift trends in the stellar mass scaling relation could be explained by a mass and redshift dependent fractional contribution from field material. Similar analyses of the ICM and baryon mass scaling relations provide evidence for the so-called 'missing baryons' outside cluster virial regions.

Full text not available from this repository.

More information

Accepted/In Press date: 14 May 2018
e-pub ahead of print date: 16 May 2018
Published date: August 2018
Keywords: Galaxies: clusters: general, Galaxies: clusters: individual, Galaxies: clusters: intracluster medium

Identifiers

Local EPrints ID: 432793
URI: http://eprints.soton.ac.uk/id/eprint/432793
ISSN: 0035-8711
PURE UUID: 47af8c5a-d300-4785-a234-eb184fbbcc40
ORCID for M. Smith: ORCID iD orcid.org/0000-0002-3321-1432

Catalogue record

Date deposited: 26 Jul 2019 16:30
Last modified: 17 Dec 2019 01:35

Export record

Altmetrics

Contributors

Author: I. Chiu
Author: J.J. Mohr
Author: M. McDonald
Author: S. Bocquet
Author: S. Desai
Author: M. Klein
Author: H. Israel
Author: M.L.N. Ashby
Author: A. Stanford
Author: B.A. Benson
Author: M. Brodwin
Author: T. M.C. Abbott
Author: F.B. Abdalla
Author: S. Allam
Author: J. Annis
Author: M. Bayliss
Author: A. Benoit-Lévy
Author: E. Bertin
Author: L. Bleem
Author: D. Brooks
Author: E. Buckley-Geer
Author: E. Bulbul
Author: R. Capasso
Author: J.E. Carlstrom
Author: A. Carnero Rosell
Author: J. Carretero
Author: F.J. Castander
Author: C.E. Cunha
Author: C.B. D'Andrea
Author: L.N. da Costa
Author: C. Davis
Author: H.T. Diehl
Author: J.P. Dietrich
Author: P. Doel
Author: A. Drlica-Wagner
Author: T.F. Eifler
Author: A.E. Evrard
Author: B. Flaugher
Author: J. García-Bellido
Author: G. Garmire
Author: E. Gaztanaga
Author: D.W. Gerdes
Author: N. Gupta
Author: J.L. Marshall
Author: S. Murray
Author: E. Sanchez
Author: R.C. Smith
Author: M. Smith ORCID iD
Author: A.R. Walker
Author: Y. Zhang

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×