A new light in the cosmic Dark Age
Today’s paper investigates one of the galaxies helping to drive the process of reionization.
The Origin of the Origin of the Universe
In 2022, we think of the Big Bang theory as a cornerstone of cosmology, but as recently as a few decades ago, scientists weren’t so sure. Today’s classic astrobite explores one of the final pieces of evidence that helped the Big Bang become the widely accepted idea it now is.
A Guide to the Guide on the Guide to The Galaxy Catalog Approach for Dark Siren Gravitational Wave-Cosmology
Planning on using gravitational waves for cosmology or measuring distances? It’s dangerous out there — don’t forget this handy guide!
DIY Building Massive Black Holes
Your backyard-style black hole is easily made from a fairly massive star. But how do you get a really massive black hole, maybe even a supermassive one?
UR: The Atomic Dark Matter Model: A Possible Solution to the Shortcomings of CDM
Could dark matter behave similarly to regular matter? If so, could dark matter halos collapse and form structures, like a black hole? In this work we explore the Atomic Dark Matter Model and predicting structure formation in it using simple algebra. We build on the current literature by showing that for certain values of the variables that govern dark matter interactions, we won’t be able to determine if the halo will be able to collapse using methods to track the dark matter number densities and how efficiently the halo can dispose of its initial energy.
Do you see new physics in my CMB?
With new CMB experiments coming online in the next decade, what are astronomers hoping to find? The answer may surprise you.