Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South
| العنوان: | Mass calibration of distant SPT galaxy clusters through expanded weak-lensing follow-up observations with HST, VLT, & Gemini-South |
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| المؤلفون: | A. Saro, Mischa Schirmer, Sebastian Bocquet, H Zohren, S F Raihan, J. P. Dietrich, Stefan Hilbert, Bradford Benson, Martin W. Sommer, D. Applegate, Julie Hlavacek-Larrondo, N Weissgerber, B. Hernandez-Martin, Michael McDonald, J. L. van den Busch, Antony A. Stark, B. Floyd, Henk Hoekstra, Tim Schrabback, Lindsey Bleem, Matthew B. Bayliss |
| المساهمون: | 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 |
| المصدر: | Monthly Notices of the Royal Astronomical Society, 505(3), 3923-3943 |
| بيانات النشر: | Oxford University Press (OUP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | gravitational lensing: weak, galaxies: clusters: general, cosmology: observations, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, General Relativity and Quantum Cosmology, Astrophysics - cosmology and nongalactic astrophysics, Astrophysics - astrophysics of galaxies, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Advanced Camera for Surveys, Cosmology, Photometry (optics), weak [gravitational lensing], Astrophysics - Astrophysics of Galaxie, Gravitational lensing: weak, 0103 physical sciences, clusters: general [galaxies], Astrophysics - Cosmology and Nongalactic Astrophysic, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Weak gravitational lensing, Galaxy cluster, Physics, 010308 nuclear & particles physics, Cosmology: observations, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Galaxy, Redshift, South Pole Telescope, Space and Planetary Science, Galaxies: clusters: general, General relativity and quantum cosmology, observation [cosmology] |
| الوصف: | Expanding from previous work we present weak lensing measurements for a total sample of 30 distant ($z_\mathrm{median}=0.93$) 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 $z\gtrsim 1.4$ background galaxies via $V-I$ colour, employing deep photometry from VLT/FORS2 and Gemini-South/GMOS. We apply revised calibrations for the weak lensing 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 weak lensing 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 $\nu\Lambda$CDM 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 weak lensing follow-up samples are needed. Comment: 32 pages, 20 figures, 12 tables, matches the version accepted for publication in MNRAS |
| وصف الملف: | application/pdf |
| تدمد: | 1365-2966 0035-8711 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10cac98485ff55b64188df21de98dca3Test https://doi.org/10.1093/mnras/stab1386Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....10cac98485ff55b64188df21de98dca3 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
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