Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model
We have recently developed an extended merger-tree model that efficiently follows hierarchical evolution of galaxy clusters and provides a quantitative description of both their dark matter and gas properties. We employed this diagnostic tool to calculate the thermal Sunyaev–Zel’dovich power spectru...
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fthighwire:oai:open-archive.highwire.org:mnras:421/3/2648 2023-05-15T18:22:20+02:00 Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model Dvorkin, Irina Rephaeli, Yoel Shimon, Meir 2012-04-11 00:00:00.0 text/html http://mnras.oxfordjournals.org/cgi/content/short/421/3/2648 https://doi.org/10.1111/j.1365-2966.2012.20496.x en eng Oxford University Press http://mnras.oxfordjournals.org/cgi/content/short/421/3/2648 http://dx.doi.org/10.1111/j.1365-2966.2012.20496.x Copyright (C) 2012, Oxford University Press Papers TEXT 2012 fthighwire https://doi.org/10.1111/j.1365-2966.2012.20496.x 2013-05-28T03:45:54Z We have recently developed an extended merger-tree model that efficiently follows hierarchical evolution of galaxy clusters and provides a quantitative description of both their dark matter and gas properties. We employed this diagnostic tool to calculate the thermal Sunyaev–Zel’dovich power spectrum and cluster number counts, accounting explicitly for uncertainties in the relevant statistical and intrinsic cluster properties, such as the halo mass function and the gas equation of state. Results of these calculations are compared with those obtained from a direct analytic treatment and from hydrodynamical simulations. We show that under certain assumptions on the gas mass fraction our results are consistent with the latest South Pole Telescope measurement. Our approach can be particularly useful in predicting cluster number counts and their dependence on cluster and cosmological parameters. Text South pole HighWire Press (Stanford University) South Pole Monthly Notices of the Royal Astronomical Society 421 3 2648 2655 |
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HighWire Press (Stanford University) |
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English |
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Papers Dvorkin, Irina Rephaeli, Yoel Shimon, Meir Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
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Papers |
description |
We have recently developed an extended merger-tree model that efficiently follows hierarchical evolution of galaxy clusters and provides a quantitative description of both their dark matter and gas properties. We employed this diagnostic tool to calculate the thermal Sunyaev–Zel’dovich power spectrum and cluster number counts, accounting explicitly for uncertainties in the relevant statistical and intrinsic cluster properties, such as the halo mass function and the gas equation of state. Results of these calculations are compared with those obtained from a direct analytic treatment and from hydrodynamical simulations. We show that under certain assumptions on the gas mass fraction our results are consistent with the latest South Pole Telescope measurement. Our approach can be particularly useful in predicting cluster number counts and their dependence on cluster and cosmological parameters. |
format |
Text |
author |
Dvorkin, Irina Rephaeli, Yoel Shimon, Meir |
author_facet |
Dvorkin, Irina Rephaeli, Yoel Shimon, Meir |
author_sort |
Dvorkin, Irina |
title |
Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
title_short |
Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
title_full |
Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
title_fullStr |
Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
title_full_unstemmed |
Sunyaev-Zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
title_sort |
sunyaev-zel'dovich power spectrum and cluster numbers from an extended merger-tree model |
publisher |
Oxford University Press |
publishDate |
2012 |
url |
http://mnras.oxfordjournals.org/cgi/content/short/421/3/2648 https://doi.org/10.1111/j.1365-2966.2012.20496.x |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://mnras.oxfordjournals.org/cgi/content/short/421/3/2648 http://dx.doi.org/10.1111/j.1365-2966.2012.20496.x |
op_rights |
Copyright (C) 2012, Oxford University Press |
op_doi |
https://doi.org/10.1111/j.1365-2966.2012.20496.x |
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Monthly Notices of the Royal Astronomical Society |
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421 |
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3 |
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2648 |
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2655 |
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1766201739610947584 |