Discussion Overview
The discussion focuses on quantifying the mass ejected in polar jets from astrophysical objects, particularly black holes and proto-stars. It explores the relationship between the mass of the jets, the mass of the black hole, and the conditions under which jets form, including the role of accretion and magnetic fields.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant questions how much mass is ejected at the poles during jet formation and whether this mass is related to the mass of the black hole.
- Another participant suggests that the mass ejection rate is not solely dependent on the black hole's mass but also on its accretion rate, indicating that quiescent black holes do not produce jets.
- Magnetic fields around black holes are proposed to significantly influence the jet formation process, with a reference to the Blandford-Znajek mechanism as a foundational model.
- A later reply raises the possibility that if the mass of quasar jets exceeds the mass of the galaxy, it could affect the galaxy's rotation, questioning if this scenario is common.
- One participant indicates a potential shift of their discussion to another thread focused on the mass and energy of relativistic jets.
Areas of Agreement / Disagreement
Participants express uncertainty regarding the quantitative understanding of mass ejection mechanisms and the factors influencing jet formation. Multiple competing views remain on the relationship between black hole mass, accretion rates, and jet mass.
Contextual Notes
There are limitations in the current understanding of the mass ejection mechanisms, including missing assumptions about the conditions under which jets form and the dependence on specific definitions related to black hole activity and magnetic field influence.