James Webb Space Telescope detects water vapor around alien planet. But where did it come from?

[Admin]

Astronomers using the James Webb Space Telescope have spotted water vapor around an exoplanet that could indicate the presence of an atmosphere.

James Webb Space Telescope detects water vapor around alien planet. But where did it come from? : Read more

 

[rod]

The paper cited, however, https://arxiv.org/abs/2305.00868 is interesting.

"Here, we present a 2.8-5.2 micron JWST NIRSpec/G395H transmission spectrum of the warm (700 K, 40.3x Earth's insolation) super-Earth GJ 486b (1.3 R⊕ and 3.0 M⊕)."

Given the radius and mass, this exoplanet has about 1.7748E+00 stronger surface gravity than Earth, escape velocity 16.98439559 or nearly 17 km/s. So this is a hot super-Earth with a deeper gravity well than Earth. There is no place like home it seems in exoplanet studies