Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South
Expanding from previous work, we present weak-lensing (WL) measurements for a total sample of 30 distant (zmedian = 0.93) massive galaxy clusters from the South Pole Telescope Sunyaev–Zel’dovich (SPT-SZ) Survey, measuring galaxy shapes in Hubble Space Telescope (HST) Advanced Camera for Surveys imag...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | http://www.osti.gov/servlets/purl/1835055 https://www.osti.gov/biblio/1835055 https://doi.org/10.1093/mnras/stab1386 |
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ftosti:oai:osti.gov:1835055 2023-07-30T04:06:54+02:00 Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South Schrabback, T. Bocquet, S. Sommer, M. Zohren, H. van den Busch, J. L. Hernández-Martín, B. Hoekstra, H. Raihan, S. F. Schirmer, M. Applegate, D. Bayliss, M. Benson, B. A. Bleem, L. E. Dietrich, J. P. Floyd, B. Hilbert, S. Hlavacek-Larrondo, J. McDonald, M. Saro, A. Stark, A. A. Weissgerber, N. 2022-06-03 application/pdf http://www.osti.gov/servlets/purl/1835055 https://www.osti.gov/biblio/1835055 https://doi.org/10.1093/mnras/stab1386 unknown http://www.osti.gov/servlets/purl/1835055 https://www.osti.gov/biblio/1835055 https://doi.org/10.1093/mnras/stab1386 doi:10.1093/mnras/stab1386 2022 ftosti https://doi.org/10.1093/mnras/stab1386 2023-07-11T10:08:51Z Expanding from previous work, we present weak-lensing (WL) measurements for a total sample of 30 distant (zmedian = 0.93) massive galaxy clusters from the South Pole Telescope Sunyaev–Zel’dovich (SPT-SZ) Survey, measuring galaxy shapes in Hubble Space Telescope (HST) Advanced Camera for Surveys images. We remove cluster members and preferentially select z ≳ 1.4 background galaxies via V-I colour, employing deep photometry from VLT/FORS2 and Gemini-South/GMOS. We apply revised calibrations for the WL shape measurements and the source redshift distribution to estimate the cluster masses. In combination with earlier Magellan/Megacam results for lower-redshifts clusters, we infer refined constraints on the scaling relation between the SZ detection significance and the cluster mass, in particular regarding its redshift evolution. The mass scale inferred from the WL data is lower by a factor $0.76^{+0.10}_{-0.14}$ (at our pivot redshift z = 0.6) compared to what would be needed to reconcile a flat Planck νΛCDM cosmology (in which the sum of the neutrino masses is a free parameter) with the observed SPT-SZ cluster counts. In order to sensitively test the level of (dis-)agreement between SPT clusters and Planck, further expanded WL follow-up samples are needed. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Pivot ENVELOPE(-30.239,-30.239,-80.667,-80.667) Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) Gemini ENVELOPE(-62.500,-62.500,-66.133,-66.133) Monthly Notices of the Royal Astronomical Society 505 3 3923 3943 |
institution |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
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description |
Expanding from previous work, we present weak-lensing (WL) measurements for a total sample of 30 distant (zmedian = 0.93) massive galaxy clusters from the South Pole Telescope Sunyaev–Zel’dovich (SPT-SZ) Survey, measuring galaxy shapes in Hubble Space Telescope (HST) Advanced Camera for Surveys images. We remove cluster members and preferentially select z ≳ 1.4 background galaxies via V-I colour, employing deep photometry from VLT/FORS2 and Gemini-South/GMOS. We apply revised calibrations for the WL shape measurements and the source redshift distribution to estimate the cluster masses. In combination with earlier Magellan/Megacam results for lower-redshifts clusters, we infer refined constraints on the scaling relation between the SZ detection significance and the cluster mass, in particular regarding its redshift evolution. The mass scale inferred from the WL data is lower by a factor $0.76^{+0.10}_{-0.14}$ (at our pivot redshift z = 0.6) compared to what would be needed to reconcile a flat Planck νΛCDM cosmology (in which the sum of the neutrino masses is a free parameter) with the observed SPT-SZ cluster counts. In order to sensitively test the level of (dis-)agreement between SPT clusters and Planck, further expanded WL follow-up samples are needed. |
author |
Schrabback, T. Bocquet, S. Sommer, M. Zohren, H. van den Busch, J. L. Hernández-Martín, B. Hoekstra, H. Raihan, S. F. Schirmer, M. Applegate, D. Bayliss, M. Benson, B. A. Bleem, L. E. Dietrich, J. P. Floyd, B. Hilbert, S. Hlavacek-Larrondo, J. McDonald, M. Saro, A. Stark, A. A. Weissgerber, N. |
spellingShingle |
Schrabback, T. Bocquet, S. Sommer, M. Zohren, H. van den Busch, J. L. Hernández-Martín, B. Hoekstra, H. Raihan, S. F. Schirmer, M. Applegate, D. Bayliss, M. Benson, B. A. Bleem, L. E. Dietrich, J. P. Floyd, B. Hilbert, S. Hlavacek-Larrondo, J. McDonald, M. Saro, A. Stark, A. A. Weissgerber, N. Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
author_facet |
Schrabback, T. Bocquet, S. Sommer, M. Zohren, H. van den Busch, J. L. Hernández-Martín, B. Hoekstra, H. Raihan, S. F. Schirmer, M. Applegate, D. Bayliss, M. Benson, B. A. Bleem, L. E. Dietrich, J. P. Floyd, B. Hilbert, S. Hlavacek-Larrondo, J. McDonald, M. Saro, A. Stark, A. A. Weissgerber, N. |
author_sort |
Schrabback, T. |
title |
Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
title_short |
Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
title_full |
Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
title_fullStr |
Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
title_full_unstemmed |
Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
title_sort |
mass calibration of distant spt galaxy clusters through expanded weak-lensing follow-up observations with hst, vlt, & gemini-south |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1835055 https://www.osti.gov/biblio/1835055 https://doi.org/10.1093/mnras/stab1386 |
long_lat |
ENVELOPE(-30.239,-30.239,-80.667,-80.667) ENVELOPE(158.317,158.317,-80.867,-80.867) ENVELOPE(-62.500,-62.500,-66.133,-66.133) |
geographic |
South Pole Pivot Hubble Gemini |
geographic_facet |
South Pole Pivot Hubble Gemini |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1835055 https://www.osti.gov/biblio/1835055 https://doi.org/10.1093/mnras/stab1386 doi:10.1093/mnras/stab1386 |
op_doi |
https://doi.org/10.1093/mnras/stab1386 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
505 |
container_issue |
3 |
container_start_page |
3923 |
op_container_end_page |
3943 |
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1772819856008151040 |