Questions about moons of the solar system

[GTOM]

At first, i would have questions about Io.
How should i imagine the electric flux between it and Jupiter?
Does it make a series of lightnings, aurora borealis, jam nearby radio communications?

In an Asimov book they needed some magitech to reach Io, is it really so deep in the gravity well?

I read Rise of the Leviathan, where Deimos was destroyed in the battle between Earth and Mars.
Could a bomb like the Tsar destroy a moon like Deimos?

 

[mfb]

At first, i would have questions about Io.
How should i imagine the electric flux between it and Jupiter?
Does it make a series of lightnings, aurora borealis, jam nearby radio communications?

Looks like a system of continuous currents, but I'm sure there are books about that.

In an Asimov book they needed some magitech to reach Io, is it really so deep in the gravity well?

~25km/s with a direct approach, neglecting Io itself (compared to ~11km/s for earth), but a clever choice of orbits allows to approach it with less delta-v. The Jupiter Europa Orbiter would have done something similar to reduce its speed.

I read Rise of the Leviathan, where Deimos was destroyed in the battle between Earth and Mars.
Could a bomb like the Tsar destroy a moon like Deimos?

1.4*10^16J gravitational binding energy, a factor 10 below the Tsar bomb. Could be possible if you let it explode in the center. You might get multiple large fragments.

 

[Borek]

Note: there are reasons to believe Tsar bomb was designed to be scalable, so in principle it should be not difficult to make it even more powerful.

 

[GTOM]

"1.4*10^16J gravitational binding energy, a factor 10 below the Tsar bomb. Could be possible if you let it explode in the center. You might get multiple large fragments. "

Does that mean if you couldn't drill to the center, just bomb the surface, it would require much more firepower than the Tsar Bomb to shatter it?
(And still the large fragments can be used as cover for spacecraft ?)

 

[mfb]

Does that mean if you couldn't drill to the center, just bomb the surface, it would require much more firepower than the Tsar Bomb to shatter it?

Yes. The bomb would mainly emit some high-energetic radiation to space and melt a part of the surface.

(And still the large fragments can be used as cover for spacecraft ?)

Cover of what? If the explosion is violent enough, most of them would hit the surface of Mars within an orbit, or escape to interplanetary space.

 

[GTOM]

"If the explosion is violent enough, most of them would hit the surface of Mars within an orbit, or escape to interplanetary space. "

Thanks i haven't thought about that.