On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy

In a recent article by Benson et al., 2011, the authors show the latest measurements from the South Pole Telescope (SPT) Sunyaev Zel'dovich (SZ) cluster survey to better constrain some cosmological parameters. In particular, the authors found that adding the SPT cluster data significantly impro...

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Bibliographic Details
Main Author: Sello, Stefano
Format: Report
Language:unknown
Published: arXiv 2011
Subjects:
Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
Hubble
South Pole
South pole
Online Access:https://dx.doi.org/10.48550/arxiv.1112.6252
https://arxiv.org/abs/1112.6252
id ftdatacite:10.48550/arxiv.1112.6252
record_format openpolar
spelling ftdatacite:10.48550/arxiv.1112.6252 2023-05-15T18:21:58+02:00 On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy Sello, Stefano 2011 https://dx.doi.org/10.48550/arxiv.1112.6252 https://arxiv.org/abs/1112.6252 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Preprint Article article CreativeWork 2011 ftdatacite https://doi.org/10.48550/arxiv.1112.6252 2022-04-01T14:05:08Z In a recent article by Benson et al., 2011, the authors show the latest measurements from the South Pole Telescope (SPT) Sunyaev Zel'dovich (SZ) cluster survey to better constrain some cosmological parameters. In particular, the authors found that adding the SPT cluster data significantly improves the constraints on equation of state of dark energy, w, beyond those found when using measurements of the CMB, supernovae, BAO and the Hubble constant. The main aim of the present research note is to give a further quantitative estimation of the above better constraints, through the computation of the Figure of Merit (FoM) applied to Ω_m and w plots for the 68% and 95% confidence regions. This allows a better evaluation and a better comparison of the continuous improvements on the cosmological constraints, obtained using new different cosmological probes and different surveys. : 9 pages, 3 figures Report South pole DataCite Metadata Store (German National Library of Science and Technology) Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) South Pole
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
spellingShingle Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
Sello, Stefano
On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
topic_facet Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
description In a recent article by Benson et al., 2011, the authors show the latest measurements from the South Pole Telescope (SPT) Sunyaev Zel'dovich (SZ) cluster survey to better constrain some cosmological parameters. In particular, the authors found that adding the SPT cluster data significantly improves the constraints on equation of state of dark energy, w, beyond those found when using measurements of the CMB, supernovae, BAO and the Hubble constant. The main aim of the present research note is to give a further quantitative estimation of the above better constraints, through the computation of the Figure of Merit (FoM) applied to Ω_m and w plots for the 68% and 95% confidence regions. This allows a better evaluation and a better comparison of the continuous improvements on the cosmological constraints, obtained using new different cosmological probes and different surveys. : 9 pages, 3 figures
format Report
author Sello, Stefano
author_facet Sello, Stefano
author_sort Sello, Stefano
title On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
title_short On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
title_full On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
title_fullStr On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
title_full_unstemmed On the better constraints from the South Pole Telescope Sunyaev-Zel'dovich galaxy clusters survey: a FoM evaluation for the equation of state of Dark Energy
title_sort on the better constraints from the south pole telescope sunyaev-zel'dovich galaxy clusters survey: a fom evaluation for the equation of state of dark energy
publisher arXiv
publishDate 2011
url https://dx.doi.org/10.48550/arxiv.1112.6252
https://arxiv.org/abs/1112.6252
long_lat ENVELOPE(158.317,158.317,-80.867,-80.867)
geographic Hubble
South Pole
geographic_facet Hubble
South Pole
genre South pole
genre_facet South pole
op_rights arXiv.org perpetual, non-exclusive license
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
op_doi https://doi.org/10.48550/arxiv.1112.6252
_version_ 1766201315611901952

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