These black holes are surrounded by spinning discs of extremely hot material that is often spewed out in long
jets along their axes of rotation.
Not exact matches
A gamma ray burst is thought to emerge when
jets of hot matter moving at near — light - speed shoot out
along the rotational
axis of the newborn black hole, beaming radiation into space like a lighthouse.
The radio and x-ray signals come from the
jet, which at first would have beamed them too narrowly
along its
axis to be seen from Earth.
The
jets and outflows, by contrast, seemed to throw matter up and down
along the disk's
axis of rotation.
This is a blazar — a rare case in which one of the two
jets happens to be directed towards Earth so that the astronomers look directly into the
jet along the longitudinal
axis.
The twisting magnetic fields will act as drive belts, tapping the enormous energy of the spinning disk to launch powerful
jets of gas
along the
axis of the disk and back out into space.
In addition to accretion disks, black holes also have winds and incredibly bright
jets erupting from them
along their rotation
axis, shooting out matter and radiation at nearly the speed of light.
As the space around the equator grows overcrowded, other stuff spewed by the dying giant would tend to get funneled into
jets along the polar
axis.
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).
An artist's conception of an outflow
jet ejected
along the central
axis of a galactic black hole.
If the companion were pulling in material from a neighboring star,
jets escaping
along the companion's rotation
axis could be produced.