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Thread: Huge change in pulsar braking (> 14 sigma!)

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    Default Huge change in pulsar braking (> 14 sigma!)



    Models will have to be improved. Pulsar evolutions must be more interesting than thought.

    A Pulsar Eases Off the Brakes

    The paper
    ON THE BRAKING INDEX OF THE UNUSUAL HIGH-B ROTATION-POWERED PULSAR PSR J1846

    discusses and prefers models involving changes in magnetosphere structure.

    I think it would be worthwhile to take a look at changes in the innards of the pulsar. It's a young one, ~800 years old, and still cooling. How about dropping temperature in an internal layer leading to a superconductive phase transition and changes in the internal magnetic fields? That could lead to the magnetic flux being channeled closer to the surface increasing the effective torque and spin down rate all right.

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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Thems the brakes, I reckon. Great article, sir.
    Bryan
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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Way the heck over my head. Pulsars have brakes? Disc or shoe? Just kidding. My ignorance is showing.
    Jim

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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Quote Originally Posted by Solrian View Post
    Way the heck over my head. Pulsars have brakes? Disc or shoe? Just kidding. My ignorance is showing.
    Pulsars radiate EM radiation. That energy lost in radiation comes from the rotational energy of the pillar. So it's EM braking.

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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Quote Originally Posted by not_Fritz_Argelander View Post
    Pulsars radiate EM radiation. That energy lost in radiation comes from the rotational energy of the pillar. So it's EM braking.
    Excessively aggressive autocorrection... that's "pulsar" not "pillar".

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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Quote Originally Posted by not_Fritz_Argelander View Post
    Excessively aggressive autocorrection... that's "pulsar" not "pillar".
    You could have got away with that one. I assumed it was a highly technical physics term describing the relativistic jets emitting from the poles.

    Obviously, in my case, there is no life before coffee.
    Bryan
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    Default Re: Huge change in pulsar braking (> 14 sigma!)

    Quote Originally Posted by bladekeeper View Post
    You could have got away with that one. I assumed it was a highly technical physics term describing the relativistic jets emitting from the poles.

    Obviously, in my case, there is no life before coffee.
    Maybe I could have.... But clearly there is no proofreading skill at 1:30am. That's WAY before coffee.

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