Astrophysical Classics: Neutral Hydrogen in the Universe, Part 3
Our special guest astrophysical classics series on Gunn & Peterson 1965 concludes with an examination — and apprehension — of the suspects responsible for reionization.
Astrophysical Classics: Neutral Hydrogen in the Universe, Part 2
Gas in the Universe went from being mostly neutral to mostly ionized as the first galaxies formed, and the signature of this process is imprinted in quasar spectra. The review of the classic paper by Gunn & Peterson continues in this second in the three-part series.
Astrophysical Classics: Neutral Hydrogen in the Universe, Part 1
This guest post, the first in a three-part series, reviews the classic article by Gunn & Peterson (1965). This paper proposed several fundamental ideas in cosmology, including using distant quasars as “flashlights” to observe the diffuse gas between galaxies.
Publish your code! The Astrophysics Source Code Library
Alice Allen writes to encourage you to post your codes in the Astrophysics Source Code Library, a repository for all software used in research.
How to use DNA to search for dark matter
Can DNA be used to detect dark matter? Guest author Elisa Chisari explains how biology and physics can combine to teach us more about the universe.