On 11/2/19 3:50:25 AM, Steve Willner wrote:
In article , I wrote:
The upshot is that the discrepancy between the local and the CMB
measurements of H_0 is between 4 and 5.7 sigma, depending on how
conservative one wants to be about assumptions.
3. while there have been several suggestion for new physics to fix
the problem, none of them so far seems to work without disagreeing
with other data.
What fun!
The Ho data is tightening:
**
Testing Low-Redshift Cosmic Acceleration with Large-Scale Structure
https://arxiv.org/abs/2001.11044
Seshadri Nadathur, Will J. Percival,
Florian Beutler, and Hans A. Winther
Phys. Rev. Lett. 124, 221301 - Published 2 June 2020
we measure the Hubble constant to be
Ho = 72.3 +/- 1.9 km/sec Mpc from BAO + voids
at z2
and
Ho = 69.0 +/- 1.2 km/sec Mpc from BAO
when adding Lyman alpha at BAO at z=2.34
**
Richard D Saam