Modelling baryonic feedback for survey cosmology
Observational cosmology in the next decade will rely on probes of the distribution of matter in the redshift range between 0<z<3 to elucidate the nature of dark matter and dark energy. In this redshift range, galaxy formation is known to have a significant impact on observables such as two-poi...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Maynooth Academic Publishing
2019-06-01
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| Series: | The Open Journal of Astrophysics |
| Subjects: | |
| Online Access: | https://astro.theoj.org/article/9452-modelling-baryonic-feedback-for-survey-cosmology |
| _version_ | 1818265542273794048 |
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| author | Elisa Chisari Alexander J. Mead Shahab Joudaki Pedro G. Ferreira Aurel Schneider Joseph Mohr Tilman David Alonso Ian G. McCarthy Sergio Martin-Alvarez Julien Devriendt Adrianne Slyz Marcel P. van Daalen |
| author_facet | Elisa Chisari Alexander J. Mead Shahab Joudaki Pedro G. Ferreira Aurel Schneider Joseph Mohr Tilman David Alonso Ian G. McCarthy Sergio Martin-Alvarez Julien Devriendt Adrianne Slyz Marcel P. van Daalen |
| author_sort | Elisa Chisari |
| collection | DOAJ |
| description | Observational cosmology in the next decade will rely on probes of the distribution of matter in the redshift range between 0<z<3 to elucidate the nature of dark matter and dark energy. In this redshift range, galaxy formation is known to have a significant impact on observables such as two-point correlations of galaxy shapes and positions, altering their amplitude and scale dependence beyond the expected statistical uncertainty of upcoming experiments at separations under 10 Mpc. Successful extraction of information in such a regime thus requires, at the very least, unbiased models for the impact of galaxy formation on the matter distribution, and can benefit from complementary observational priors. This work reviews the current state of the art in the modelling of baryons for cosmology, from numerical methods to approximate analytical prescriptions, and makes recommendations for studies in the next decade, including a discussion of potential probe combinations that can help constrain the role of baryons in cosmological studies. We focus, in particular, on the modelling of the matter power spectrum, P(k,z), as a function of scale and redshift, and of the observables derived from this quantity. This work is the result of a workshop held at the University of Oxford in November of 2018. |
| first_indexed | 2024-12-12T19:52:28Z |
| format | Article |
| id | doaj.art-5d82b7122c7f479aabc36c0142e4daa2 |
| institution | Directory Open Access Journal |
| issn | 2565-6120 |
| language | English |
| last_indexed | 2024-12-12T19:52:28Z |
| publishDate | 2019-06-01 |
| publisher | Maynooth Academic Publishing |
| record_format | Article |
| series | The Open Journal of Astrophysics |
| spelling | doaj.art-5d82b7122c7f479aabc36c0142e4daa22022-12-22T00:13:57ZengMaynooth Academic PublishingThe Open Journal of Astrophysics2565-61202019-06-01210.21105/astro.1905.06082Modelling baryonic feedback for survey cosmologyElisa Chisari0https://orcid.org/0000-0003-4221-6718Alexander J. Mead1Shahab Joudaki2Pedro G. Ferreira3Aurel Schneider4Joseph Mohr5Tilman6https://orcid.org/0000-0003-3520-2406David Alonso7Ian G. McCarthy8Sergio Martin-Alvarez9https://orcid.org/0000-0002-4059-9850Julien Devriendt10Adrianne Slyz11Marcel P. van Daalen12University of OxfordUniversity of British ColumbiaUniversity of OxfordUniversity of OxfordETH Zurich Ludwig-Maximilians-Universitaet, MunichTrösterUniversity of OxfordLiverpool John Moores UniversityUniversity of OxfordUniversity of OxfordUniversity of OxfordUniversity of LeidenObservational cosmology in the next decade will rely on probes of the distribution of matter in the redshift range between 0<z<3 to elucidate the nature of dark matter and dark energy. In this redshift range, galaxy formation is known to have a significant impact on observables such as two-point correlations of galaxy shapes and positions, altering their amplitude and scale dependence beyond the expected statistical uncertainty of upcoming experiments at separations under 10 Mpc. Successful extraction of information in such a regime thus requires, at the very least, unbiased models for the impact of galaxy formation on the matter distribution, and can benefit from complementary observational priors. This work reviews the current state of the art in the modelling of baryons for cosmology, from numerical methods to approximate analytical prescriptions, and makes recommendations for studies in the next decade, including a discussion of potential probe combinations that can help constrain the role of baryons in cosmological studies. We focus, in particular, on the modelling of the matter power spectrum, P(k,z), as a function of scale and redshift, and of the observables derived from this quantity. This work is the result of a workshop held at the University of Oxford in November of 2018.https://astro.theoj.org/article/9452-modelling-baryonic-feedback-for-survey-cosmologylarge-scale structure of the universecosmologybaryonic physicsredshift surveysgalaxy clustering |
| spellingShingle | Elisa Chisari Alexander J. Mead Shahab Joudaki Pedro G. Ferreira Aurel Schneider Joseph Mohr Tilman David Alonso Ian G. McCarthy Sergio Martin-Alvarez Julien Devriendt Adrianne Slyz Marcel P. van Daalen Modelling baryonic feedback for survey cosmology The Open Journal of Astrophysics large-scale structure of the universe cosmology baryonic physics redshift surveys galaxy clustering |
| title | Modelling baryonic feedback for survey cosmology |
| title_full | Modelling baryonic feedback for survey cosmology |
| title_fullStr | Modelling baryonic feedback for survey cosmology |
| title_full_unstemmed | Modelling baryonic feedback for survey cosmology |
| title_short | Modelling baryonic feedback for survey cosmology |
| title_sort | modelling baryonic feedback for survey cosmology |
| topic | large-scale structure of the universe cosmology baryonic physics redshift surveys galaxy clustering |
| url | https://astro.theoj.org/article/9452-modelling-baryonic-feedback-for-survey-cosmology |
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