https://hackerpaper.kaipfister.de/p/astro-ph_0007217/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=44338888urn:hackerpapers:mention:astro-ph_0007217:44338888Sat, 21 Jun 2025 16:42:29 GMT<p>Here is the preprint [1]. From a quick glance, the authors look only at a small (relative to the overall size of the universe) region of space and study the emission from the gas between galaxies (specifically, the WHIM [2]). It would seem challenging to draw major conclusions based on this study - and the authors themselves conclude higher quality data of the type they are using is needed. Some context: This missing gas or &quot;missing baryons&quot; problem is a very old one [3]. See here [4] for a nice review (Section 4 mentions the missing baryons problem, which really is localized to the…</p><p><a href="https://hackerpaper.kaipfister.de/p/astro-ph_0007217/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph