STRIDES: a 3.9 per cent measurement of the Hubble constant from the strong lens system DES J0408−5354
ABSTRACT
We present a blind time-delay cosmographic analysis for the lens system DES J0408−5354. This system is extraordinary for the presence of two sets of multiple images at different redshifts, which provide the opportunity to obtain more information at the cost of increased modelling complexity with respect to previously analysed systems. We perform detailed modelling of the mass distribution for this lens system using three band Hubble Space Telescope imaging. We combine the measured time delays, line-of-sight central velocity dispersion of the deflector, and statistically constrained external convergence with our lens models to estimate two cosmological distances. We measure the ‘effective’ time-delay distance corresponding to the redshifts of the deflector and the lensed quasar $D_{\Delta t}^{\rm eff}=$$3382_{-115}^{+146}$ Mpc and the angular diameter distance to the deflector Dd = $1711_{-280}^{+376}$ Mpc, with covariance between the two distances. From these constraints on the cosmological distances, we infer the Hubble constant H0= $74.2_{-3.0}^{+2.7}$ km s−1 Mpc−1 assuming a flat ΛCDM cosmology and a uniform prior for Ωm as $\Omega _{\rm m} \sim \mathcal {U}(0.05, 0.5)$. This measurement gives the most precise constraint on H0 to date from a single lens. Our measurement is consistent with that obtained from the previous sample of six lenses analysed by the H0 Lenses in COSMOGRAIL’s Wellspring (H0LiCOW) collaboration. It is also consistent with measurements of H0 based on the local distance ladder, reinforcing the tension with the inference from early Universe probes, for example, with 2.2σ discrepancy from the cosmic microwave background measurement.
Top-30
Journals
|
5
10
15
20
25
30
35
40
45
50
|
|
|
Astronomy and Astrophysics
46 publications, 23.96%
|
|
|
Monthly Notices of the Royal Astronomical Society
37 publications, 19.27%
|
|
|
Astrophysical Journal
26 publications, 13.54%
|
|
|
Physical Review D
24 publications, 12.5%
|
|
|
Journal of Cosmology and Astroparticle Physics
8 publications, 4.17%
|
|
|
Astrophysical Journal Letters
4 publications, 2.08%
|
|
|
Universe
3 publications, 1.56%
|
|
|
European Physical Journal C
3 publications, 1.56%
|
|
|
Classical and Quantum Gravity
3 publications, 1.56%
|
|
|
Physics of the Dark Universe
3 publications, 1.56%
|
|
|
International Journal of Modern Physics D
2 publications, 1.04%
|
|
|
Astrophysical Journal, Supplement Series
2 publications, 1.04%
|
|
|
Journal of High Energy Astrophysics
2 publications, 1.04%
|
|
|
Astroparticle Physics
2 publications, 1.04%
|
|
|
Space Science Reviews
2 publications, 1.04%
|
|
|
Springer Series in Astrophysics and Cosmology
2 publications, 1.04%
|
|
|
Modern Physics Letters A
1 publication, 0.52%
|
|
|
Symmetry
1 publication, 0.52%
|
|
|
Astronomy and Astrophysics Review
1 publication, 0.52%
|
|
|
Astronomical Journal
1 publication, 0.52%
|
|
|
New Astronomy Reviews
1 publication, 0.52%
|
|
|
Publications of the Astronomical Society of the Pacific
1 publication, 0.52%
|
|
|
Reports on Progress in Physics
1 publication, 0.52%
|
|
|
Living Reviews in Relativity
1 publication, 0.52%
|
|
|
Computer Physics Communications
1 publication, 0.52%
|
|
|
Science
1 publication, 0.52%
|
|
|
Journal of Modern Physics
1 publication, 0.52%
|
|
|
The Journal of Open Source Software
1 publication, 0.52%
|
|
|
General Relativity and Gravitation
1 publication, 0.52%
|
|
|
5
10
15
20
25
30
35
40
45
50
|
Publishers
|
5
10
15
20
25
30
35
40
45
50
|
|
|
EDP Sciences
46 publications, 23.96%
|
|
|
Oxford University Press
37 publications, 19.27%
|
|
|
American Astronomical Society
33 publications, 17.19%
|
|
|
American Physical Society (APS)
24 publications, 12.5%
|
|
|
IOP Publishing
15 publications, 7.81%
|
|
|
Elsevier
12 publications, 6.25%
|
|
|
Springer Nature
11 publications, 5.73%
|
|
|
MDPI
5 publications, 2.6%
|
|
|
World Scientific
3 publications, 1.56%
|
|
|
American Association for the Advancement of Science (AAAS)
1 publication, 0.52%
|
|
|
Scientific Research Publishing
1 publication, 0.52%
|
|
|
The Open Journal
1 publication, 0.52%
|
|
|
Annual Reviews
1 publication, 0.52%
|
|
|
The Royal Society
1 publication, 0.52%
|
|
|
5
10
15
20
25
30
35
40
45
50
|
- We do not take into account publications without a DOI.
- Statistics recalculated weekly.