Keeping Time in the Milky Way with Chemical Clocks
Stellar ages are notoriously difficult to determine. However, today’s authors investigate a promising new method of estimating stellar age with “chemical clocks!”
Our Galaxy is Shook: Impact of the LMC on the Outer Milky Way
Today’s paper looks at the gravitational influence of the Large Magellanic Cloud on the Milky Way – one may think our Galaxy is in equilibrium, but it is actually being sloshed around!
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.
Reconstructing the Galactic merger history with machine learning
Astronomers use machine learning to reconstruct past mergers that the Milky Way experienced.
Four Spiral Arms Walk into a Bar…
Mapping the structure of dense gas in the Milky Way is a huge undertaking… which is why we have huge surveys!
Disentangling Milky Way Evolution with Disentangled Representation Learning, a New Tool for Chemical Tagging
Chemical tagging without chemical abundances? Today’s authors devise a neural network that ‘disentangles’ chemical abundances from stellar spectra to avoid the uncertainties that often beset chemical taggers.