Not exact matches
The lack of absorption features means that GJ 1214 b can not have a diffuse
hydrogen atmosphere unless it also has a high
cloud layer that blocks the starlight from streaming
through.
The latest spectrographic analysis indicates that the probes are passing
through multiple
clouds of
hydrogen and trace elements.
For example, the passage of the heliosphere
through a
cloud with a neutral
hydrogen density of 11 cm − 3 rather than the present value of about 0.2 cm − 3 would shrink the termination shock from about 90 AU in the upwind direction to only 14 AU.»