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Thread: Ep. 158: Pulsars

  1. #1
    Join Date
    Jul 2003

    Ep. 158: Pulsars

    Imagine an object with the mass of the Sun, crushed down to the size of Manhattan. Now set that object spinning hundreds of times a second, blasting out powerful beams of radiation like a lighthouse. That's a pulsar, one of the most exotic objects in the Universe.


  2. #2
    Join Date
    Apr 2011
    Logan, Australia
    learning learning learning, always learning.

    so, 1 cm^2 = 100 000 000 ton. wow.

    If I got that 1cm^2 and put it out in interstellar space would it expand or is that dense enough to hold itself together?

    Weird question I know. I'm listening to all the astronomy casts in order and building up a verbal model of how things work. I understand gravity vs light pressure in a star and tiny black holes.

    So, we need a lot of material to make a lot of gravity to compress a star down that small. But once its compressed to neutron star / pulsar levels could a small amount of it remain compressed if you took it away? How dense does it need to be?
    Last edited by wiggy; 2013-Apr-22 at 08:12 PM. Reason: unit error

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