Testing cosmology with the DES 5-year supernovae dataset
In today’s astrobite, we discuss the results of the cosmology analysis for the Dark Energy Survey, from it’s 5 year supernovae dataset.
In today’s astrobite, we discuss the results of the cosmology analysis for the Dark Energy Survey, from it’s 5 year supernovae dataset.
“The past, present, and future of the Hubble tension”: We interviewed cosmologist Daniel Scolnic for his plenary talk at the upcoming #AAS242!
Planning on using gravitational waves for cosmology or measuring distances? It’s dangerous out there — don’t forget this handy guide!
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.
With new CMB experiments coming online in the next decade, what are astronomers hoping to find? The answer may surprise you.
The distribution of galaxies clusters (BAOs) are a beloved tool for cosmological analysis. But what about cosmic voids? Stare into the void, and you might just learn something new!