The mystery of Titan's dense atmosphere.

"SwRI is studying how Saturn’s largest moon maintains its thick atmosphere. Scientists think Titan’s core is covered by several layers of ice and a subsurface liquid ocean. New experiments indicate that nitrogen and methane gases produced by the organic materials at its core could seep up to the surface, continuously replenishing Titan’s atmosphere. Credit: Southwest Research Institute" (ScitechDaily, Scientists Unlock the Secrets of Titan’s Dense Atmosphere)

Titan is quite a small object in our solar system.  It's the largest moon of Saturn. That is the second-largest moon, and only Jupiter's Ganymede is bigger. The dense atmosphere of that moon is one of the biggest mysteries in our solar system. The main gas is nitrogen in its atmosphere is nitrogen, but there is also a small dose of methane. The atmosphere pressure on Titan's surface is 146.7 kPa (1.45 atm). And that makes this thing interesting. The mass of Titan is only  0.0225 Earth, and its escaping velocity is only 2.641 km/s. Escaping velocity from Earth is 11.186 km/s. 

Can Titan be like a magnetic monopole? If the other pole of that moon's magnetic field is weak its magnetic field can unite over the weaker pole. And that forms a magnetic monopolar field around it. 

Can this effect form because Titan's magnetic field is so special? Can the other pole of Titan's moon's magnetic field be very weak? That can make Titan act like a magnetic monopole.  If that is true the Titan moon can pull ions against its surface. In that model, Titan can have a normal nucleus like all other planets. But if there is a large subsurface ocean.

"Artistic rendering of hydrothermal vents on the seafloor of the Saturnian moon Enceladus. Credit: NASA/JPL-Caltech, edited" (ScitechDaily, Could Saturn’s Moon Enceladus Be Hiding Clues to Alien Life?)

It's possible that some magnetic minerals or compounds that can look like a stick can turn their standing position against Titan's nucleus. And if as an example N pole in those sticks is outside that turns Titan into the monopolar structure. 

There can be some kind of tunneling force or electromagnetic phenomenon that pulls those gases against the Titan surface. The dust storms can form static electricity that can pull ionized gas to the surface. The idea is if there is some kind of EM field and some molecules and atoms are ionized that pulls them to the surface. In the widest theories, Titan is a magnetic monopole that can pull ions and anions over it. Or its nucleus can behave like a magnetic monopole if another pole on that strange moon is very weak. 

And the question is how the Titan can maintain its dense atmosphere. Another mystery is the methane gas that the Titan atmosphere involves 1,4%. The question is the source of that gas. The Titan structure might involve a subsurface ocean. And even if Titan's surface is totally without water. It's possible. The subsurface ocean can involve water. That can make Titan one of the promising harbors of life. 

An interesting detail is the thing that makes Titan more interesting is that there is suspicion that also another Saturn moon Enceladus can harbor some primitive lifeforms. Similar suspicions are introduced for other large moons, where there are subsurface oceans. Water is a good protector against the cosmic rays and that's why those icy moons are interesting. 

https://scitechdaily.com/could-saturns-moon-enceladus-be-hiding-clues-to-alien-life/

https://scitechdaily.com/scientists-unlock-the-secrets-of-titans-dense-atmosphere/

https://en.wikipedia.org/wiki/Earth

https://en.wikipedia.org/wiki/Enceladus

https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)

https://en.wikipedia.org/wiki/Titan_(moon)