All Questions
Tagged with astronomy magnetic-fields
10
questions
5
votes
2
answers
129
views
Is it possible to predict the appearance of auroras?
Yesterday I saw online a lot of people seeing auroras both in the North and in the South of the globe. Unfortunately, I wasn't one of these people, and this got me curious about how much we can ...
- 22.2k
1
vote
0
answers
32
views
What creates the Global Dipole Magnetic Field in the Sun?
I understand that the Sun undergoes convection and with rotation, the convective cells have a helical motion because of the Coriolis Force. My confusion comes from the fact that via the right-hand ...
- 11
0
votes
1
answer
42
views
Is there any tools for observing magnetic fields and forces of black holes and galaxies?
I want to know about how we can find magnetic forces and fields in space around stars, planets, galaxies, pulsars especially pulsars. How (by what means) did determine magnetic fields around a pulsar?
- 21
0
votes
1
answer
50
views
Can strong magnetic fields exist in a large scale?
there. Can strong magnetic fields with strength about $1$ T to $10^{3}$ T exist in a large scale, e.g., about several light years?
I searched on Google Scholar, but I could not find related papers.
- 105
2
votes
1
answer
97
views
Astronomical objects that should have magnetic bubbles similar to those found by the Voyager probe at the edge of our solar system
I've known about the existence of magnetic bubbles at Solar System's edge from a video edited by NASA from an official channel of YouTube, I refer [1] (as explicitly stated in the title, it was a ...
0
votes
0
answers
94
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Query about the ion tail of a comet
I understand that the solid gas coating the nucleus of a comet is melted and that this gas is ionised by the UV rays from the sun. This makes the gas particles charged.
What I dont understand is why ...
- 1,525
4
votes
1
answer
238
views
How strong can the magnetic field of a black hole be if it accretes matter?
I've read some papers where black holes have magnetic fields on the order of 10^6 Gauss, of course this compared to the magnetic field of neutrons stars or magnetars is quite small. So I'm curious ...
- 1,137
20
votes
1
answer
2k
views
Can we know if an exoplanet has a magnetic field?
The recent discovery of the exoplanet Proxima b gave rise to several questions concerning its habitability and its potential to host life. A major concern is the huge amount of radiation coming from ...
- 1,262
5
votes
1
answer
2k
views
Can an asteroid have a magnetic field?
Some M-type asteroids are believed to be metallic, even possessing Nickel-Iron.
Given
the proximity of the asteroid belt to Jupiter's magnetosphere,
the regularity of motion of any given M ...
- 4,723
6
votes
1
answer
109
views
Does a celestial system exhibit a collective magnetic field?
Sol exhibits a magnetic field, most of the planets in orbit around Sol exhibit a magnetic field - strong and weak both.
Does the solar system as a whole exhibit a magnetic field?
Does the paradigm ...
- 4,723