Ceres predictions – atmosphere

ceres planet asteroid atmosphereWhat will the giant asteroid Ceres or dwarf planet Ceres atmosphere be like?

Will it be as mainstream science and astronomy suggest or will there be surprises?

Will Ceres have surprising electromagnetic phenomena or will it be non electrical?

Where does Ceres atmosphere come from? Is it only due to water vapour from inside as science suggests?

There are indications that Ceres may have a tenuous atmosphere and water frost on the surface. Surface water ice is unstable at distances less than 5 AU from the Sun, so it is expected to sublime if it is exposed directly to solar radiation. Water ice can migrate from the deep layers of Ceres to the surface, but escapes in a very short time. As a result, it is difficult to detect water vaporization.

Water escaping from polar regions of Ceres was possibly observed in the early 1990s but this has not been unambiguously demonstrated. It may be possible to detect escaping water from the surroundings of a fresh impact crater or from cracks in the subsurface layers of Ceres. Ultraviolet observations by the IUE spacecraft detected statistically significant amounts of hydroxide ions near the Cererean north pole, which is a product of water-vapor dissociation by ultraviolet solar radiation.

In early 2014, using data from the Herschel Space Observatory, it was discovered that there are several localized (not more than 60 km in diameter) mid-latitude sources of water vapor on Ceres, which each give off about 1026 molecules (or 3  kg) of water per second. Two potential source regions, designated Piazzi (123°E, 21°N) and Region A (231°E, 23°N), have been visualized in the near infrared as dark areas (Region A also has a bright center) by the W. M. Keck Observatory. Possible mechanisms for the vapor release are sublimation from about 0.6 km2 of exposed surface ice, or cryovolcanic eruptions resulting from radiogenic internal heat.
Ceres (dwarf planet) – Physical characteristics – Surface

Ceres atmosphere predictions will be influenced by the predicted geology and internal structure of the planet. A rocky core with an ice mantle.

Will new data also be interpreted in that manner, so no other possible alternatives will be accepted?

In January 2014, emissions of water vapor were detected from several regions of Ceres. This was somewhat unexpected, as large bodies in the asteroid belt do not typically emit vapor, a hallmark of comets.
Ceres (dwarf planet)

Is the water vapour due to ice volcanoes, sublimation or something else? Is it a similar electrochemical process to active asteroids (comets) and on the Moon?

Ceres has a very primitive surface and like a young planet, contains water-bearing minerals, and possibly a very weak atmosphere and frost.
Dwarf Planet Ceres - Physical Characteristics