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Thread: a white dwarf SN survivor!

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    Default a white dwarf SN survivor!



    Past items italicized. Scopes: Refractors: Orion ST80 (mods for white light solar), SV ED80 f7, Orion and SW 80 and 120 ED, Orion ED80T, Orion 120 f8.3, Tasco 30x30, Edmund 40; Newtonians: AT 8”f4, OC 8”f6.3, Z12 f5, self made 6” f9, Orion 10" f4.7, Orion XX14i; Catadioptrics: VMC110L, Intes MK66, Orion 102 MakCas f12.7, Celestron 9.25 SCT and 9.25 Edge. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, TV Nagler, ES100s, Edmund Orthoscopics, Baader Hyperions. Mounts: Orion Sirius EQG, Star Seeker III, Celestron CG5, Vixen Porta II, Orion Atlas, Losmandy G11

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    Default Re: a white dwarf SN survivor!

    Very cool. Any ideas how it could have survived the SN event?
    "Look up at the stars, not down at your feet." Stephen Hawking
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    Default Re: a white dwarf SN survivor!

    Quote Originally Posted by GCoyote View Post
    Very cool. Any ideas how it could have survived the SN event?
    Successful detonation is not guaranteed. It depends on many factors. In particular the mass accretion / loss history, the point where the detonation initiates, how much of an envelope is above the ignition point, etc. Just as a chemical explosive can fizzle so can a SN.

    Perhaps rather than the usual scenario where a wd accretes excess material until it collapses as a whole some fluke in the accretion history started an off center detonation the ejected enough material to relieve the critical pressure on the core. If the detonation was initiated be a sudden supersonic flow or merger event the CO core would not have had time to respond and detonate as a whole, just in part. I'm speculating.....
    Seeker725 and GCoyote like this.
    Past items italicized. Scopes: Refractors: Orion ST80 (mods for white light solar), SV ED80 f7, Orion and SW 80 and 120 ED, Orion ED80T, Orion 120 f8.3, Tasco 30x30, Edmund 40; Newtonians: AT 8”f4, OC 8”f6.3, Z12 f5, self made 6” f9, Orion 10" f4.7, Orion XX14i; Catadioptrics: VMC110L, Intes MK66, Orion 102 MakCas f12.7, Celestron 9.25 SCT and 9.25 Edge. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, TV Nagler, ES100s, Edmund Orthoscopics, Baader Hyperions. Mounts: Orion Sirius EQG, Star Seeker III, Celestron CG5, Vixen Porta II, Orion Atlas, Losmandy G11

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