https://hackerpaper.kaipfister.de/p/1006.2834/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=39365388urn:hackerpapers:mention:1006.2834:39365388Wed, 14 Feb 2024 01:49:20 GMT<p>The next problem is https://arxiv.org/pdf/1006.2834.pdf which has the lightest black holes at 5.0⊙ There&#x27;s another interesting object - https://www.science.org/doi/10.1126/science.adg3005 This is a binary system with a total mass of 3.887⊙ ± 0.004 ... which puts the companion in the system at 2.09⊙ to 2.71⊙ ... which may be in the &quot;heavier than any theoretical neutron star, but lighter than any known black hole. A recent Dr. Becky video on this: FOUND in the MASS GAP: The heaviest neutron star OR the lightest black hole? https://youtu.be/8PHt7NcwllA</p><p><a href="https://hackerpaper.kaipfister.de/p/1006.2834/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.GA