The Changing Fractions of Type Ia Supernova NUV-Optical Subclasses with Redshift · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1408.1706/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTThe Changing Fractions of Type Ia Supernova NUV-Optical Subclasses with Redshift — mentioned by brittonsmithhttps://news.ycombinator.com/item?id=9362970urn:hackerpapers:mention:1408.1706:9362970Sun, 12 Apr 2015 11:24:48 GMT<p>To see what this means for the cosmological parameters, the best place to look is Figure 15 of the journal article [1]. The effect of the distance bias pushes for a higher value of Omega_M (the fraction of the energy density of the universe in matter) and a lower value of w (a term which characterizes the equation of state of dark energy). The currently accepted values for these two parameters are roughly Omega_M = 0.3 and w = -1. If w = -1, it means that dark energy is consistent with a cosmological constant, which is more-or-less the simplest form of dark energy (not that we really know…</p><p><a href="https://hackerpaper.kaipfister.de/p/1408.1706/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.CO