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Horse(head)s in the Galactic Ecosystem

Horse(head)s in the Galactic Ecosystem

by Delaney Dunne | Sep 4, 2023 | Daily Paper Summaries

All galaxies are a complex ecosystem of interactions between hydrogen gas and stars. In today’s paper, the authors look at the Horsehead Nebula to narrow down the details of those interactions.

Tracing Star Fuel in the Universe’s Smallest Galaxies

Tracing Star Fuel in the Universe’s Smallest Galaxies

by Delaney Dunne | Aug 30, 2023 | Daily Paper Summaries

It’s really hard to see molecular hydrogen (the fuel that makes stars) directly, so astronomers have to use other spectral lines to guess how much is there. In today’s paper, the authors discuss how to do that in the smallest galaxies in the universe!

Tracking Down the Quasar Light Switch

Tracking Down the Quasar Light Switch

by Delaney Dunne | May 27, 2023 | Daily Paper Summaries

We’re still not sure what causes quasars, some of the brightest objects in the universe, to switch on. Today’s authors present a compelling case for galaxy mergers being the culprit!

Cool, Relaxed, but Way Out of Its Lane: The Most Distant Cooling-Flow Galaxy Cluster Yet Observed

Cool, Relaxed, but Way Out of Its Lane: The Most Distant Cooling-Flow Galaxy Cluster Yet Observed

by Delaney Dunne | Apr 3, 2023 | Daily Paper Summaries

Galaxy clusters like to relax, but it takes most of them a long time to get there. In today’s paper, the authors have found an exception to that rule!

A Galactic Prison Break: Tracing Lyα Escape at High Redshift

A Galactic Prison Break: Tracing Lyα Escape at High Redshift

by Delaney Dunne | Mar 11, 2023 | Daily Paper Summaries

Astrophysics is a lot like life in that sometimes the journey matters more than the destination. In today’s paper, which looks at the Hydrogen Lyman-α spectral line in a high-redshift protocluster, that’s absolutely the case!

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