Missing dark matter in a nearby dwarf galaxy
A satellite of Andromeda is missing an important ingredient — so where did it go?
UR: A Search for Dark Matter with HaloSat
In the latest of our #UndergradResearch series, discover how Emily Silich used observations from the HaloSat cubesat to search for X-ray signatures of dark matter.
How to Make Genetically Engineered Halos in Cosmological Simulations
Today’s guest post takes a look at a technique that cleverly tweaks simulated galaxy halos very early on in their lives in order to direct their growth in a specific way
Hunting for stellar splashback: defining the size of a galaxy cluster
How big is a galaxy cluster? Today’s authors use the remnants of destroyed galaxies to define the edge of galaxy clusters.
The Galaxy Main Sequence: What’s in the Scatter?
What processes can explain the diversity in star formation rates exhibited by galaxies of similar masses? Today’s authors investigate this using the EAGLE simulation.
Meet the AAS Keynote Speakers: Adrian Price-Whelan
Thanks to the Gaia satellite and other incredible data sources, we are in for a set of unprecedented discoveries about our galaxy over the next few years. Learn more about them at Dr. Adrian Price-Whelan’s talk at #AAS237!