Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing

ABSTRACT Measurements of the Hubble constant, H0, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the cosmic microwave background (CMB) and other high-redshift data sets if a flat Λ cold dark matter (ΛCDM) cosmological model is assumed. On...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2021-02, Vol.501 (2), p.1823-1835
Hauptverfasser: Baxter, Eric J, Sherwin, Blake D
Format: Artikel
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 1835
container_issue 2
container_start_page 1823
container_title Monthly notices of the Royal Astronomical Society
container_volume 501
creator Baxter, Eric J
Sherwin, Blake D
description ABSTRACT Measurements of the Hubble constant, H0, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the cosmic microwave background (CMB) and other high-redshift data sets if a flat Λ cold dark matter (ΛCDM) cosmological model is assumed. One of the few promising theoretical resolutions of this tension is to invoke new physics that changes the sound horizon scale in the early Universe; this can bring CMB and baryon acoustic oscillations (BAO) constraints on H0 into better agreement with local measurements. In this paper, we discuss how a measurement of the Hubble constant can be made from the CMB without using information from the sound horizon scale, rs. In particular, we show how measurements of the CMB lensing power spectrum can place interesting constraints on H0 when combined with measurements of either supernovae or galaxy weak lensing, which constrain the matter density parameter. The constraints arise from the sensitivity of the CMB lensing power spectrum to the horizon scale at matter–radiation equality (in projection); this scale could have a different dependence on new physics than the sound horizon. From an analysis of current CMB lensing data from Planck and Pantheon supernovae with conservative external priors, we derive an rs-independent constraint of $H_0 = 73.5\pm 5.3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$. Forecasts for future CMB surveys indicate that improving constraints beyond an error of $\sigma (H_0) = 3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$ will be difficult with CMB lensing, although applying similar methods to the galaxy power spectrum may allow for further improvements.
doi_str_mv 10.1093/mnras/staa3706
format Article
fullrecord <record><control><sourceid>oup_TOX</sourceid><recordid>TN_cdi_crossref_primary_10_1093_mnras_staa3706</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1093/mnras/staa3706</oup_id><sourcerecordid>10.1093/mnras/staa3706</sourcerecordid><originalsourceid>FETCH-LOGICAL-c339t-96264875801e53452bfe10109d3667ac98e61be326b9527d1f98ab6355b617393</originalsourceid><addsrcrecordid>eNqFkD1PwzAQhi0EEqGwMntlSGvHsROzQfgoUhELrER2ciFBsV3ZjhD8ekILM9MN772P7h6EzilZUiLZylivwipEpVhBxAFKKBM8zaQQhyghhPG0LCg9RichvBNCcpaJBL3eQARvBjvYNxx7wOtJ6xFw4-xMshF_DLF3U9xlwU22xb3zw5ezODRqhEtsQIXJgwEbA-68M7h6vMYj2DAjT9FRp8YAZ79zgV7ubp-rdbp5un-orjZpw5iMqRSZyMuCl4QCZznPdAeUzF-1TIhCNbIEQTXMF2vJs6KlnSyVFoxzLWjBJFug5Z7beBeCh67e-sEo_1lTUv_YqXd26j87c-FiX3DT9r_dbwP7aOM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing</title><source>Oxford Journals Open Access Collection</source><creator>Baxter, Eric J ; Sherwin, Blake D</creator><creatorcontrib>Baxter, Eric J ; Sherwin, Blake D</creatorcontrib><description>ABSTRACT Measurements of the Hubble constant, H0, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the cosmic microwave background (CMB) and other high-redshift data sets if a flat Λ cold dark matter (ΛCDM) cosmological model is assumed. One of the few promising theoretical resolutions of this tension is to invoke new physics that changes the sound horizon scale in the early Universe; this can bring CMB and baryon acoustic oscillations (BAO) constraints on H0 into better agreement with local measurements. In this paper, we discuss how a measurement of the Hubble constant can be made from the CMB without using information from the sound horizon scale, rs. In particular, we show how measurements of the CMB lensing power spectrum can place interesting constraints on H0 when combined with measurements of either supernovae or galaxy weak lensing, which constrain the matter density parameter. The constraints arise from the sensitivity of the CMB lensing power spectrum to the horizon scale at matter–radiation equality (in projection); this scale could have a different dependence on new physics than the sound horizon. From an analysis of current CMB lensing data from Planck and Pantheon supernovae with conservative external priors, we derive an rs-independent constraint of $H_0 = 73.5\pm 5.3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$. Forecasts for future CMB surveys indicate that improving constraints beyond an error of $\sigma (H_0) = 3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$ will be difficult with CMB lensing, although applying similar methods to the galaxy power spectrum may allow for further improvements.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/staa3706</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>Monthly notices of the Royal Astronomical Society, 2021-02, Vol.501 (2), p.1823-1835</ispartof><rights>2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-96264875801e53452bfe10109d3667ac98e61be326b9527d1f98ab6355b617393</citedby><cites>FETCH-LOGICAL-c339t-96264875801e53452bfe10109d3667ac98e61be326b9527d1f98ab6355b617393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1598,27903,27904</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/staa3706$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc></links><search><creatorcontrib>Baxter, Eric J</creatorcontrib><creatorcontrib>Sherwin, Blake D</creatorcontrib><title>Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing</title><title>Monthly notices of the Royal Astronomical Society</title><description>ABSTRACT Measurements of the Hubble constant, H0, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the cosmic microwave background (CMB) and other high-redshift data sets if a flat Λ cold dark matter (ΛCDM) cosmological model is assumed. One of the few promising theoretical resolutions of this tension is to invoke new physics that changes the sound horizon scale in the early Universe; this can bring CMB and baryon acoustic oscillations (BAO) constraints on H0 into better agreement with local measurements. In this paper, we discuss how a measurement of the Hubble constant can be made from the CMB without using information from the sound horizon scale, rs. In particular, we show how measurements of the CMB lensing power spectrum can place interesting constraints on H0 when combined with measurements of either supernovae or galaxy weak lensing, which constrain the matter density parameter. The constraints arise from the sensitivity of the CMB lensing power spectrum to the horizon scale at matter–radiation equality (in projection); this scale could have a different dependence on new physics than the sound horizon. From an analysis of current CMB lensing data from Planck and Pantheon supernovae with conservative external priors, we derive an rs-independent constraint of $H_0 = 73.5\pm 5.3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$. Forecasts for future CMB surveys indicate that improving constraints beyond an error of $\sigma (H_0) = 3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$ will be difficult with CMB lensing, although applying similar methods to the galaxy power spectrum may allow for further improvements.</description><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkD1PwzAQhi0EEqGwMntlSGvHsROzQfgoUhELrER2ciFBsV3ZjhD8ekILM9MN772P7h6EzilZUiLZylivwipEpVhBxAFKKBM8zaQQhyghhPG0LCg9RichvBNCcpaJBL3eQARvBjvYNxx7wOtJ6xFw4-xMshF_DLF3U9xlwU22xb3zw5ezODRqhEtsQIXJgwEbA-68M7h6vMYj2DAjT9FRp8YAZ79zgV7ubp-rdbp5un-orjZpw5iMqRSZyMuCl4QCZznPdAeUzF-1TIhCNbIEQTXMF2vJs6KlnSyVFoxzLWjBJFug5Z7beBeCh67e-sEo_1lTUv_YqXd26j87c-FiX3DT9r_dbwP7aOM</recordid><startdate>20210201</startdate><enddate>20210201</enddate><creator>Baxter, Eric J</creator><creator>Sherwin, Blake D</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20210201</creationdate><title>Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing</title><author>Baxter, Eric J ; Sherwin, Blake D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-96264875801e53452bfe10109d3667ac98e61be326b9527d1f98ab6355b617393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baxter, Eric J</creatorcontrib><creatorcontrib>Sherwin, Blake D</creatorcontrib><collection>CrossRef</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Baxter, Eric J</au><au>Sherwin, Blake D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2021-02-01</date><risdate>2021</risdate><volume>501</volume><issue>2</issue><spage>1823</spage><epage>1835</epage><pages>1823-1835</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>ABSTRACT Measurements of the Hubble constant, H0, from the cosmic distance ladder are currently in tension with the value inferred from Planck observations of the cosmic microwave background (CMB) and other high-redshift data sets if a flat Λ cold dark matter (ΛCDM) cosmological model is assumed. One of the few promising theoretical resolutions of this tension is to invoke new physics that changes the sound horizon scale in the early Universe; this can bring CMB and baryon acoustic oscillations (BAO) constraints on H0 into better agreement with local measurements. In this paper, we discuss how a measurement of the Hubble constant can be made from the CMB without using information from the sound horizon scale, rs. In particular, we show how measurements of the CMB lensing power spectrum can place interesting constraints on H0 when combined with measurements of either supernovae or galaxy weak lensing, which constrain the matter density parameter. The constraints arise from the sensitivity of the CMB lensing power spectrum to the horizon scale at matter–radiation equality (in projection); this scale could have a different dependence on new physics than the sound horizon. From an analysis of current CMB lensing data from Planck and Pantheon supernovae with conservative external priors, we derive an rs-independent constraint of $H_0 = 73.5\pm 5.3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$. Forecasts for future CMB surveys indicate that improving constraints beyond an error of $\sigma (H_0) = 3\, {\rm km}\,{\rm s}^{-1}\,{\rm Mpc}^{-1}$ will be difficult with CMB lensing, although applying similar methods to the galaxy power spectrum may allow for further improvements.</abstract><pub>Oxford University Press</pub><doi>10.1093/mnras/staa3706</doi><tpages>13</tpages></addata></record>
fulltext fulltext_linktorsrc
identifier ISSN: 0035-8711
ispartof Monthly notices of the Royal Astronomical Society, 2021-02, Vol.501 (2), p.1823-1835
issn 0035-8711
1365-2966
language eng
recordid cdi_crossref_primary_10_1093_mnras_staa3706
source Oxford Journals Open Access Collection
title Determining the Hubble constant without the sound horizon scale: measurements from CMB lensing
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-27T20%3A42%3A51IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-oup_TOX&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Determining%20the%20Hubble%20constant%20without%20the%20sound%20horizon%20scale:%20measurements%20from%20CMB%20lensing&rft.jtitle=Monthly%20notices%20of%20the%20Royal%20Astronomical%20Society&rft.au=Baxter,%20Eric%20J&rft.date=2021-02-01&rft.volume=501&rft.issue=2&rft.spage=1823&rft.epage=1835&rft.pages=1823-1835&rft.issn=0035-8711&rft.eissn=1365-2966&rft_id=info:doi/10.1093/mnras/staa3706&rft_dat=%3Coup_TOX%3E10.1093/mnras/staa3706%3C/oup_TOX%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_oup_id=10.1093/mnras/staa3706&rfr_iscdi=true