We are pleased to provide you with a preview on our tentative schedule for the upcoming Primary Working Group 4, ``Does spin energy power jets and non-thermal radiation and, if so, how?''
One of our main objectives will be to flesh out a consensus on a short list of research questions and directions. Please participate by providing your input for the 1.5 hours discussion. These could include a key observational result or an observation that should be made, comments on the state of the theory as it currently stands or suggestions on what the next theoretical steps should be. Suggestions for very short (< 3 mins) presentations are welcome.
If you have any further questions or suggestions, please let us know.
Friendly regards, Session co-chairs,
Maurice van Putten and Andrew Wilson
(mvp@schauder.mit.edu) (wilson@astro.umd.edu)
(tentative schedule)
Session 1 - Mainly observational
2:30-3:00 Felix Mirabel ``Relativistic Jets in the Milky Way Galaxy''
3:00-3:30 Andrew Wilson ``Extragalactic Relativistic Jets''
3:30-4:00 Discussion
4:00-4:30 Coffee break
Session 2 - Mainly theoretical
4:30-5:00 Roger Blandford (TBA)
5:00-5:30 Maurice van Putten (theoretical introduction)
5:30-6:30 Discussion and definition of what needs to be done
Ten Key Questions
1) Are the jets e^- - p^+, e^- - e^+, a mixture of the two or something else?
2) What is the maximum bulk gamma factor in the jet ``spline''?
3) Why are powerful extragalactic jets produced only by elliptical galaxies?
4) What is the physical cause of the radio-quiet, FRI and FRII distinction?
5) Is the long term directional stability a ``gyroscopic'' effect of the
black hole spin or of the accretion disk?
6) Is a non-relativistic wind also present - always, sometimes or never?
7) Are jets launched continuously or intermittently?
8) Are jets stabilised by rotation, perhaps by black hole spin?
9) What is the connection, if any, with gamma-ray bursts?
10) Can accreting Schwarzschild black holes produce jets like those we see?