Only polarization of Sgr A * light permits to constrain the geometry of the magnetic
fields near the black hole event horizon and it is possibly the only way to find out what Sgr A * radio source really is.
Not exact matches
This may mean that the Milky Way's magnetic
field twists into surprisingly complex shapes
near the
black hole.
Instead of streaming out of a metal casing and turbine, a blazar's jets «are confined and focused by coiled magnetic
fields originating
near the [supermassive]
black hole.»
New detections of radio waves from a repeating fast radio burst have revealed an astonishingly potent magnetic
field in the source's environment, indicating that it is situated
near a massive
black hole or within a nebula of unprecedented power.
Until recently, it was not clear what prevented the delicate filaments from being destroyed by competing gravitational forces, but Hubble Space Telescope images suggest they are supported by magnetic
fields generated
near the galaxy's central
black hole.
«We are directly measuring the motion of matter in a strong gravitational
field near to a
black hole,» says Ingram.
Like the
fields around our sun, these
black hole's magnetic
fields can periodically «reconnect,» a process that could catapult material from
near its surface.
This ultra-powerful
field becomes better organized and forms two outwardly directed funnels along the new
black hole's rotational axis, which then creates the two bi-polar jets of particles moving
near the speed of light that are detected as a short GRB (NASA news release; Seil Collins, New Scientist, April 13, 2011; and Rezzolla et al, 2011; and more discussion and images from Bruno Giacomazzo's presentation).