Meet the AAS Keynote Speakers: Prof. Sherry Suyu
How can we use gravitational lenses to resolve the Hubble Constant debate of the 2010s? Come find out at Prof. Sherry Suyu’s #AAS237 talk!
Measuring the curvature of the Universe with cosmic clocks
What is the curvature of the Universe? Today’s authors use an exciting new probe to find out: Cosmological Clocks.
Is the Hubble Tension actually a Temperature Tension?
The Hubble tension is one of the biggest issues in modern cosmology. Why can we not agree on the expansion rate of the Universe? Today’s authors propose a solution: The actual disagreement might be in the assumed mean temperature of the cosmic microwave background.
Running up that hill: are some galaxy clusters moving away faster than others?
We discuss a new way to test the cosmological principle using X-ray studies of galaxy clusters in this Astrobite.
Constraining the Hubble Constant with Lensed Gravitational Wave Events
Gravitational waves have been used to measure the Hubble constant before, but the uncertainties were too large to provide competitive constraints. However, using lensed gravitational wave events could be a game-changer.
TLDR: the TRGB gives us another H0tTake!
The Tip of the Red Giant Branch (TRGB) allows for another H0 measurement to enter the ring. Credit for “H0tTake” goes to the conference “Tensions between the Early and the Late Universe” hosted at the Kavli Institute for Theoretical Physics!