Hubble Space Telescope non-detection of PSR J2144-3933: the coldest known neutron star · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1901.07998/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTHubble Space Telescope non-detection of PSR J2144-3933: the coldest known neutron star — mentioned by robocathttps://news.ycombinator.com/item?id=24498283urn:hackerpapers:mention:1901.07998:24498283Wed, 16 Sep 2020 21:38:24 GMT<p>The temperature is expected to remain above plasma temperatures even if a neutron star could cool for a billion years, so presumably normal chemistry couldn’t occur. https://astronomy.stackexchange.com/questions/14387/what-hap... The coldest neutron star detected “T &lt; 42,000 Kelvin” : https://arxiv.org/abs/1901.07998 Disclaimer: I am not an astrophysicist.</p><p><a href="https://hackerpaper.kaipfister.de/p/1901.07998/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HE