|Jun5-12, 01:59 AM||#18|
Blog Entries: 59
accretion disk/black hole/gas jets
Short vid but thought it was of interest-
More info- http://svs.gsfc.nasa.gov/vis/a010000...942/index.html
|Jun7-12, 07:57 AM||#19|
Here it is reported remnants of jets from our own galaxy, possibly active within the last million years and possibly originating from a MW "AGN" . The Fermi bubble and jets are said to extend 27,000 light years.
And here it is reported a VPOS, or vast polar structure of globular clusters, streaks and stars extending 10 to 250 kps, beginning just where the bubble and jets end.
The origin of the VPOS is conjectured to be a collision with another galaxy.
Question: How likely is it that the polar material and jets are related? Could some or all of the polar objects have condensed from the jets? Are the distances reported for the two phenomena necessarily incommensurable?
|Jun7-12, 08:43 AM||#20|
On formation of the jets, the accretion disc spins hotter and faster towards the center obviously. Now I may have my assumption wrong about the uncertainty principle, as I've only studied it in one dimention, but since we know that the most inward particles in the disc have relativistic velocities in the circumferential direction, wouldn't that mean that we can't be certain of their radial and axial components?
Meaning, with super relativistic velocicties very close to the EH, wouldn't we expect to find particles with large velocities in axial and radial directions; sum over histories and whatnot.
The radial component would only add to the turbulance of the disc, but if the axial component is large enough, the particle would race out towards the poles; either under influence of mag fields or simply momentum. On a large enough scale, couldn't this kind of uncertainty driven exitation in the axial direction.lead to polar jets if high energy material get ejected or collides with other particles and annihilates, giving rise to large amounts of energy at the poles. Any non-massless particles that arrise from the energy would have to be directed nearly perpendicularly away from the BH to escape gravity.
Is this a reasonable suggestion?
|Jun7-12, 01:42 PM||#21|
I have a some questions that have been bugging me for some time.
1.Can black holes rotate in a clockwise motion in some and counter clockwise in others or do they all rotate in the same direction?
2.If the event horizon of a clockwise rotating black hole collided with the event horizon of a counter clockwise rotating black hole. what would happen? would they cancel each other out or would they rip each other apart sending a gravitational shockwave throughout the universe?
|Jun7-12, 05:59 PM||#22|
Hi TrinityP! Welcome to PF!
the Earth rotates anti-clockwise as viewed from above the North pole, but clockwise as viewed from above the South pole.
|accretion disc, black hole, jets|
|Similar Threads for: accretion disk/black hole/gas jets|
|Detecting Black Hole accretion disc||Astrophysics||2|
|Saturn's hexagon and his accretion disk jets||Astrophysics||0|
|nuclear reactions in AGN accretion disk||Astrophysics||2|
|Analogous Hawking Radiation from Astrophysical Black Hole Accretion||Astrophysics||4|
|black hole particle jets||General Physics||2|