https://hackerpaper.kaipfister.de/p/2201.10552/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=30160407urn:hackerpapers:mention:2201.10552:30160407Tue, 01 Feb 2022 09:40:18 GMT<p>&gt; Nobody has ever addressed my question Ok, I will try. I have to admit I do not fully understand what you are asking. As noted in the link at the top, it is reasonable to speculate that these filaments are related to the activity of the galactic centre supermassive black hole. However, we do not have a quasar in our galaxy, and it is hard to imagine (consistent with evidence from this and similar galaxies at various cosmological redshifts) that the Milky Way possessed an active galactic centre which subsequently was quenched. Indeed, part of the mystery here is that there is a quite weak…</p><p><a href="https://hackerpaper.kaipfister.de/p/2201.10552/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.GA