Does blackhole have strong magnetic field?

In summary, the conversation is discussing the presence of a strong magnetic field in black holes. While it is known that neutron stars have a strong magnetic field, the existence of a magnetic field in black holes is still being debated. Recent research suggests that black hole jets, which are streams of protons and electrons traveling at near light speed, may be responsible for generating this magnetic field. Further study is needed to fully understand this phenomenon.
  • #1
Does black hole have strong magnetic field??

As we all known: neutron-star has strong magnetic field! Does black hole have strong magnetic field too??
Thank you in advance!
Astronomy news on
  • #2
A quick Google on "black hole magnetic" yields this interesting article by , titled "Scientists Determine the Nature of Black Hole Jets."

They say:
"Black hole jets are one of the great paradoxes in astronomy," said Rita Sambruna of NASA's Goddard Space Flight Center, Greenbelt, Md. "How is it that black holes, so efficient at pulling matter in, can also accelerate matter away at near light speed? We still don't know how these jets form, but at least we now have a solid idea about what they're made of."
However, it is not clear why these jets generate a magnetic field since we are not sure of what exactly they are made of. Further:
The composition of black hole jets has been the topic of heated debate for several decades. Scientists generally agree that the jets must be made either of electrons and their antimatter partners, called positrons, or an even mix of electrons and protons. Recent theoretical and observational advances have pointed in the direction of the latter. The Swift data provides the most compelling evidence to date that the jets must have protons.
So if these near light speed jets of protons are zooming out both ends of the black hole axis, they generate a magnetic field similar to quasars and neutron stars. But what's inside the black hole to generate this protons, positron stream? Much more study is needed to better understand this galactic phenomenon, since it seems most if not all galaxies have some super massive black hole in their centers. Another interesting article: , which says the black hole's magnetic field is a giant particle accelerator. Hope this helps.
  • #3
Thank you !

1. What is a black hole?

A black hole is a region of space where the gravitational pull is so strong that nothing, including light, can escape from it.

2. Can black holes have magnetic fields?

Yes, black holes can have magnetic fields, just like any other object in space. However, the strength of their magnetic fields is dependent on various factors, such as their size and the amount of matter they have consumed.

3. How strong are the magnetic fields of black holes?

The strength of a black hole's magnetic field varies depending on its size, but it is generally much stronger than the magnetic fields on Earth. Some estimates suggest that the magnetic fields of supermassive black holes can be millions of times stronger than Earth's magnetic field.

4. How do scientists detect magnetic fields in black holes?

Scientists use a variety of methods to detect magnetic fields in black holes. One method is to observe how the magnetic field affects the surrounding matter, such as the jets of high-energy particles that are often emitted from black holes. Another method is to study the polarization of light from the vicinity of a black hole, which can provide clues about the strength and orientation of the magnetic field.

5. What is the significance of black hole magnetic fields?

Black hole magnetic fields play a crucial role in many astrophysical processes, such as the formation of jets, the acceleration of particles, and the dynamics of matter falling into the black hole. Understanding these magnetic fields can help us understand the behavior of black holes and their impact on the surrounding environment.

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