Remedying Spectral Confusion in Cosmology
In today’s guest post, Caitlin Doughty discusses how carbon lines are misidentified and their impact on cosmology.
Like a Rolling Coin: How Stars Trace Out The Dark Matter Surrounding Us
As smaller galaxies collide with our own they’re slowly torn apart. By watching how they spread across the night’s sky we can infer an incredible amount about the shape of the galaxy and the nature of dark matter.
Now You See Them, Now You Don’t – How to Find Distant Galaxies
A look at a classic paper exploring a novel technique to select distant galaxies by waiting for them to drop out of the spectra…
Major mergers do not matter (much)
Major mergers (collisions between two galaxies of similar size) are some of the most dramatic cosmic events. But in the grand scheme of things, how important are they, really?
Leaving on a jet stream
Through tangled magnetic fields, super massive black holes and at least one otter, we explore how the phenomenal jets launched from the centre of galaxies are created.
Smarter Computers Do More Work, Only Much Slower
The goal of today’s paper is to study using an advanced machine learning method known as neural nets to improve our ability to automatically analyze data taken straight from the telescope.