3 ms·
I'll keeo looking, but for starters, Earths magnetic field is between 0.25-0.65 gauss - for scale. I think the spin period means it revolves fully in 1.03 secon
by dmbche 3y ago
I'll keeo looking, but for starters, Earths magnetic field is between 0.25-0.65 gauss - for scale. I think the spin period means it revolves fully in 1.03 second while earth takes 24h.
Edit: I'm sorry - 1.03 second between every pulse, and the pulsar has two jets coming out at the poles, so double that for a rotation.
For fhe spin down luminosity - from my understanding, we measure the amount of energy it exerts per rotation by how slower it turns by every rotation, which is represented as luminosity for a mysterious reason to me but I imagine it's because it's very small? An erg being 100 nJ.
For the last figure, it represent the electrons between us and the pulsar per area (if you think about it as a laser, the amount of electrons pushed by the laser)
Here is an example
"Example
The binary pulsar PSR J0437-4715 has had its parallax distance determined from pulsar timing to be 156 pc. The dispersion of 2.643 pc cm-3 means that the mean electron density between the Earth and the pulsar is:
ne = DM/D = 2.643/156 = 0.017 electrons/cm3"
From https://astronomy.swin.edu.au/cosmos/p/pulsar+dispersion+measure https://astronomy.swin.edu.au/cosmos/p/pulsar+dispersion+mea...
- dmvdoug 3y agoI thought spin down had something to do with pseudo-angular momentum of, like, electrons, but after Googling I see it definitely means spin down as the opposite of, like, spinning up an engine or a Docker container. Which is exactly what you said. Which is exactly why I didn’t try to guess what these things meant, because I had no idea. :)
- dmvdoug 3y agoI still don’t know what a nonillion ergs is, but I now know that a nonillion is 10^54, which hurts my brain by itself.