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Could all supermassive objects in the center of galaxies be SGR's post mortem?

  1. Apr 5, 2006 #1
    Could the supermassive object in the Milkyway be a SGR post mortem?

    I tried to fix the title (I realized it contradicts what I posted), but I couldn't (retarded is that.), and I can't even delete my own thread, so here's the new title:

    Could the supermassive object in the Milkyway be a SGR post mortem?


    Is it possible that the supermassive object in the center of the milkyway (http://www.eso.org/outreach/press-rel/pr-2002/pr-17-02.html [Broken]) is really a dead object that was once a really huge soft gamma repeater in the Quasar stage?

    Could Seyfert galaxies possess supermassive X-ray pulsars in the center?

    Neutron Star Collision Theories:
    http://haydenplanetarium.org/hp/vo/ava/avapages/S0606neutcoll.html [Broken]

    Attached Files:

    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Apr 6, 2006 #2


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    Pulsars and soft gamma-ray repeaters are neutron stars -- i.e. ~10 km sized objects supported with neutron degeneracy pressure. There's no way, with current theory, to produce a neutron star as massive as the object at the center of our galaxy. It just couldn't support itself from gravity. Maximum masses for neutron stars are expected to be around ~1.5-5 solar masses, not three million.

    Also, your link at the bottom refers to colliding neutron stars, which is a possible mechanism for gamma-ray bursts, different from soft gamma-ray repeaters
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