Hubble constant difference between CMB lensing and BAO measurements
We apply a tension metric QUDM, the update difference in mean parameters, to understand the source of the difference in the measured Hubble constant H0 inferred with cosmic microwave background lensing measurements from the Planck satellite (H 0 = $67.9$ $^{+1.1}_{–1.3}$ km/s/Mpc) and from the South...
Published in: | Physical Review D |
---|---|
Main Authors: | , , , |
Language: | unknown |
Published: |
2022
|
Subjects: | |
Online Access: | http://www.osti.gov/servlets/purl/1734898 https://www.osti.gov/biblio/1734898 https://doi.org/10.1103/physrevd.102.023510 |
id |
ftosti:oai:osti.gov:1734898 |
---|---|
record_format |
openpolar |
spelling |
ftosti:oai:osti.gov:1734898 2023-07-30T04:06:54+02:00 Hubble constant difference between CMB lensing and BAO measurements Wu, W. L. Kimmy Motloch, Pavel Hu, Wayne Raveri, Marco 2022-08-23 application/pdf http://www.osti.gov/servlets/purl/1734898 https://www.osti.gov/biblio/1734898 https://doi.org/10.1103/physrevd.102.023510 unknown http://www.osti.gov/servlets/purl/1734898 https://www.osti.gov/biblio/1734898 https://doi.org/10.1103/physrevd.102.023510 doi:10.1103/physrevd.102.023510 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.1103/physrevd.102.023510 2023-07-11T09:57:03Z We apply a tension metric QUDM, the update difference in mean parameters, to understand the source of the difference in the measured Hubble constant H0 inferred with cosmic microwave background lensing measurements from the Planck satellite (H 0 = $67.9$ $^{+1.1}_{–1.3}$ km/s/Mpc) and from the South Pole Telescope (H 0 = $72.0$ $^{+2.1}_{–2.5}$ km/s/Mpc) when both are combined with baryon acoustic oscillation (BAO) measurements with priors on the baryon density (BBN). Q UDM isolates the relevant parameter directions for tension or concordance where the two data sets are both informative, and aids in the identification of subsets of data that source the observed tension. With Q UDM , we uncover that the difference in H 0 is driven by the tension between Planck lensing and BAO+BBN, at probability-to-exceed of 6.6%. Most of this mild tension comes from the galaxy BAO measurements parallel to the line of sight in the redshift range 0.2 < z < 0.75. Here, the redshift dependence of the parallel BAOs pulls both the matter density Ω m and H 0 high in Λ CDM, but these parameter anomalies are usually hidden when the BAO measurements are combined with other cosmological data sets with much stronger Ω m constraints. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) Physical Review D 102 2 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
79 ASTRONOMY AND ASTROPHYSICS |
spellingShingle |
79 ASTRONOMY AND ASTROPHYSICS Wu, W. L. Kimmy Motloch, Pavel Hu, Wayne Raveri, Marco Hubble constant difference between CMB lensing and BAO measurements |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
We apply a tension metric QUDM, the update difference in mean parameters, to understand the source of the difference in the measured Hubble constant H0 inferred with cosmic microwave background lensing measurements from the Planck satellite (H 0 = $67.9$ $^{+1.1}_{–1.3}$ km/s/Mpc) and from the South Pole Telescope (H 0 = $72.0$ $^{+2.1}_{–2.5}$ km/s/Mpc) when both are combined with baryon acoustic oscillation (BAO) measurements with priors on the baryon density (BBN). Q UDM isolates the relevant parameter directions for tension or concordance where the two data sets are both informative, and aids in the identification of subsets of data that source the observed tension. With Q UDM , we uncover that the difference in H 0 is driven by the tension between Planck lensing and BAO+BBN, at probability-to-exceed of 6.6%. Most of this mild tension comes from the galaxy BAO measurements parallel to the line of sight in the redshift range 0.2 < z < 0.75. Here, the redshift dependence of the parallel BAOs pulls both the matter density Ω m and H 0 high in Λ CDM, but these parameter anomalies are usually hidden when the BAO measurements are combined with other cosmological data sets with much stronger Ω m constraints. |
author |
Wu, W. L. Kimmy Motloch, Pavel Hu, Wayne Raveri, Marco |
author_facet |
Wu, W. L. Kimmy Motloch, Pavel Hu, Wayne Raveri, Marco |
author_sort |
Wu, W. L. Kimmy |
title |
Hubble constant difference between CMB lensing and BAO measurements |
title_short |
Hubble constant difference between CMB lensing and BAO measurements |
title_full |
Hubble constant difference between CMB lensing and BAO measurements |
title_fullStr |
Hubble constant difference between CMB lensing and BAO measurements |
title_full_unstemmed |
Hubble constant difference between CMB lensing and BAO measurements |
title_sort |
hubble constant difference between cmb lensing and bao measurements |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1734898 https://www.osti.gov/biblio/1734898 https://doi.org/10.1103/physrevd.102.023510 |
long_lat |
ENVELOPE(158.317,158.317,-80.867,-80.867) |
geographic |
South Pole Hubble |
geographic_facet |
South Pole Hubble |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1734898 https://www.osti.gov/biblio/1734898 https://doi.org/10.1103/physrevd.102.023510 doi:10.1103/physrevd.102.023510 |
op_doi |
https://doi.org/10.1103/physrevd.102.023510 |
container_title |
Physical Review D |
container_volume |
102 |
container_issue |
2 |
_version_ |
1772819850400366592 |