Type Ia Supernovae with Bi-Modal Explosions Are Common -- Possible Smoking Gun for Direct Collisions of White-Dwarfs · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1401.3347/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTType Ia Supernovae with Bi-Modal Explosions Are Common -- Possible Smoking Gun for Direct Collisions of White-Dwarfs — mentioned by splathttps://news.ycombinator.com/item?id=7104418urn:hackerpapers:mention:1401.3347:7104418Wed, 22 Jan 2014 18:28:25 GMT<p>This supernova will be very important for figuring out what Type Ia SNe are. As Phil Plait mentions, astronomers only know that white dwarfs are involved, but there are several competing models as to how the white dwarf(s) explode. One of the main ways we will be able to distinguish between these models is by observing what the supernova looks like long after the explosion since this is when the shock will be interacting with distant material. Because this supernova is so close we will be able to observe it long after the explosion and will therefore be able to observe its interactions with…</p><p><a href="https://hackerpaper.kaipfister.de/p/1401.3347/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HE