PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1912.05705/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTPSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter — mentioned by srlhttps://news.ycombinator.com/item?id=26958502urn:hackerpapers:mention:1912.05705:26958502Tue, 27 Apr 2021 16:55:49 GMT<p>Relatedly, NICER (an X-Ray telescope) launched in 2017, and has been observing pulsars to get radius measurements since then. See for instance https://arxiv.org/abs/1912.05705. (I think there&#x27;s a more recent measurement but I can&#x27;t find it on arXiv.) I don&#x27;t have a good understanding of the relationships between all the different methods, but I do know that NICER&#x27;s measurements have systematically given larger radii (albeit with huge error bars) than other methods do.</p><p><a href="https://hackerpaper.kaipfister.de/p/1912.05705/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HE