Search: onr:"swepub:oai:DiVA.org:su-167531" >
Prospects for Resol...
Prospects for Resolving the Hubble Constant Tension with Standard Sirens
-
Feeney, Stephen M. (author)
-
- Peiris, Hiranya V. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),University College London, United Kingdom
-
Williamson, Andrew R. (author)
-
show more...
-
Nissanke, Samaya M. (author)
-
- Mortlock, Daniel J. (author)
- Stockholms universitet,Institutionen för astronomi,Imperial College London, United Kingdom
-
Alsing, Justin (author)
-
Scolnic, Dan (author)
-
show less...
-
(creator_code:org_t)
- 2019
- 2019
- English.
-
In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 122:6
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The Hubble constant (H-0) estimated from the local Cepheid-supernova distance ladder is in 3-sigma tension with the value extrapolated from cosmic microwave background (CMB) data assuming the standard cosmological model. Whether this tension represents newphysics or systematic effects is the subject of intense debate. Here, we investigate how new, independent H-0 estimates can arbitrate this tension, assessing whether the measurements are consistent with being derived from the same model using the posterior predictive distribution (PPD). We show that, with existing data, the inverse distance ladder formed from BOSS baryon acoustic oscillation measurements and the Pantheon supernova sample yields an H-0 posterior near identical to the Planck CMB measurement. The observed local distance ladder value is a very unlikely draw from the resulting PPD. Turning to the future, we find that a sample of similar to 50 binary neutron star standard sirens (detectable within the next decade) will be able to adjudicate between the local and CMB estimates.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database